Finally started building Twin turbo headers
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Still waiting on the intercooler, but here's a shot of the mounted wastegates, everything else is done. They're delivering the car to me this Saturday (if the Fedex can find the intercooler core).
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
The intercooler came in today and we started mounting it. It will definitely be done tomorrow, barring something totally unexpected.
Here's a shot of us mocking up the intercooler core location. The end tanks and all the plumbing still needs to be done at this point. Unfortunately, I left the camera on and the battery died, so I didn't get to take any more pics.
Here's a shot of us mocking up the intercooler core location. The end tanks and all the plumbing still needs to be done at this point. Unfortunately, I left the camera on and the battery died, so I didn't get to take any more pics.
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Well, we finished up the car this evening and it's getting delivered tomorrow. Tom did a real nice job with the intercooler. Welding aluminum and making it look takes some good experience and it showed today. The intercooler looks very nice and he made a mounting bracket for it from chromoly tubing.
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From: Monticello, IN USA
Car: 1991 Z-28
Engine: 350
Transmission: T-5 (gonna buy the farm)
You have done an excellent job Monty. I commend you for not having a big head about being able to do this. I have personally met people who, if they know something out of the ordinary (turbos in your case), they preach on how they are the only one to talk to on the subject. Out of all the questions and responses, you have given credit to the people who have helped you. You deserve what you have accomplished. Good luck on using that power!!
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Thanks guys, it's been a challenging 4 months trying to get it done. I was initally given an estimate of 4 weeks
.
Johnsjj2, I wouldn't have gotten the results I've gotten thus far with out help from a few experienced pro's. I really didn't know much about building a twin turbo setup or headers before starting this, and I still only know a little. However, I feel pretty confident that I could do it again without having to have someone else build it for me, and I have since purchased the equipment (TIG welder, metal cutting band saw, chop saw, sanders, etc) necessary. All I need to do is get better at welding.
Lil Qik, we tried to make it as symetrical as possible but you quickly realize that cars aren't symetrical when you do stuff like this. Alot of poeple don't realize that the engine is set 3/4" over to the right side, they're not perfectly centered, add in accesories like the alternator, power steering pump, a/c compressor etc, and it's hard to get it perfectly symetrical, but we did the best we could. I should have the motor on the dyno by Memorial day, and I should be back on the road a few days after that. It only took me 2 hours to pull the motor out last night, so it's not that big of a deal to put it back in.
89Procharged, The intercooler core is a Spearco/Turbonetics 2-182, which measures 21" x 10.5" x 3.5", without the end tanks. It's rated for 1000hp and 1500cfm @ .6 psi pressure drop with a 60% efficiency at 10mph airflow across the core, at 20 mph the efficiency increases to over 75%. It is Spearco's largest and highest rated air/air core. You can get more cfm through it, but the pressure drop would be slightly higher. The only way to get more intercooler volume would be to run two seperate intercoolers but I don't really have the space without making significant mods to the chassis and or removing the pop-up headlights.
.Johnsjj2, I wouldn't have gotten the results I've gotten thus far with out help from a few experienced pro's. I really didn't know much about building a twin turbo setup or headers before starting this, and I still only know a little. However, I feel pretty confident that I could do it again without having to have someone else build it for me, and I have since purchased the equipment (TIG welder, metal cutting band saw, chop saw, sanders, etc) necessary. All I need to do is get better at welding.
Lil Qik, we tried to make it as symetrical as possible but you quickly realize that cars aren't symetrical when you do stuff like this. Alot of poeple don't realize that the engine is set 3/4" over to the right side, they're not perfectly centered, add in accesories like the alternator, power steering pump, a/c compressor etc, and it's hard to get it perfectly symetrical, but we did the best we could. I should have the motor on the dyno by Memorial day, and I should be back on the road a few days after that. It only took me 2 hours to pull the motor out last night, so it's not that big of a deal to put it back in.
89Procharged, The intercooler core is a Spearco/Turbonetics 2-182, which measures 21" x 10.5" x 3.5", without the end tanks. It's rated for 1000hp and 1500cfm @ .6 psi pressure drop with a 60% efficiency at 10mph airflow across the core, at 20 mph the efficiency increases to over 75%. It is Spearco's largest and highest rated air/air core. You can get more cfm through it, but the pressure drop would be slightly higher. The only way to get more intercooler volume would be to run two seperate intercoolers but I don't really have the space without making significant mods to the chassis and or removing the pop-up headlights.
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From: Indianapolis, IN
Car: 2000 Trans Am
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Man that turned out really nicely monty!
Do you have any pictures of the headers individually? I mean, like laying on a bench or something not bolted to the heads? Im interested to see what they look like when not bolted to everything else.
Do you have any pictures of the headers individually? I mean, like laying on a bench or something not bolted to the heads? Im interested to see what they look like when not bolted to everything else.
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Thanks Guido.
I don't have any pics of the headers individually, but they're sitting on my welding table out in the garage, so I could easily take some if you wanted to see something.
I don't have any pics of the headers individually, but they're sitting on my welding table out in the garage, so I could easily take some if you wanted to see something.
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
It was $775 for the core.
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From: Indianapolis, IN
Car: 2000 Trans Am
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Transmission: T56
Id just like to see the headers by themselves without being crowded in the engine compartment. To see how the tubes bend and how the transitions look.
they look pretty nice! Very twisty (is that a word?). lol
they look pretty nice! Very twisty (is that a word?). lol
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Guido,
Sure, I can take a couple of pics tonight. We tried to keep the primaries as close to equal-length as possible, that's why they are so "twisty"
.
Sure, I can take a couple of pics tonight. We tried to keep the primaries as close to equal-length as possible, that's why they are so "twisty"
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Camaro-mayhem,
It's an '82 Corvette, last year of the "Sharks"/C3's.
Guido, here's some pics of the headers... The 321 stainless steel still needs to be cleaned and polished. It's dull right now, but once it's polished and heated up, it'll get shiney, almost like a goldish chrome.


It's an '82 Corvette, last year of the "Sharks"/C3's.
Guido, here's some pics of the headers... The 321 stainless steel still needs to be cleaned and polished. It's dull right now, but once it's polished and heated up, it'll get shiney, almost like a goldish chrome.


Last edited by Monty; Apr 30, 2002 at 10:39 PM.
Monty,
that is coming out great. I cant wait to see how it runs once you get it up & going.
if you dont mind would you start a followup post on this topic, this one takes close to 15 minutes to load with all the pictures in it.
BW
that is coming out great. I cant wait to see how it runs once you get it up & going.
if you dont mind would you start a followup post on this topic, this one takes close to 15 minutes to load with all the pictures in it.
BW
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Bobalos,
You're right it's starting to take a long time to load this thread. If I have any updated pics, I'll start a new thread.
You're right it's starting to take a long time to load this thread. If I have any updated pics, I'll start a new thread.
I was just wondering about how much money went into this whole project. It looks really clean. Is this a "do-it yourself" install? I have a 90 camaro and i am interested in doing a turbo. So I was just wondering how long it took some of you who have a 3rd gen to install and how much it cost and what kind of hp are you running?
That $hit is fu(king nice as heIl man.
best of luck with it.:hail:
That $hit is fu(king nice as heIl man.
best of luck with it.:hail:
Thread Starter
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Streetrunner,
A turbo setup can be a "do it a yourself" project if you have the skill and equipement (welder, chop saw, sanders, etc) as shown by several of the guys here who did it themselves.
It's really not that hard, it's just a matter of welding together pieces of tubing cut from pre-formed U-bends, J-bends, straight pieces etc to fabricate the headers etc. Companies like Specialty Products Design and Burns Stainless offer the tubing in mils steel and stainless (304 and 321, as well as Inconel if you've got big $$). They also offer premade merge collectors and flanges. That makes it alot easier.
I tried to give a pretty good step by step description of the contruction of my setup on my website in the Exhaust section. Most of the guys who have done it have documented the process via their websites.
Good luck!
A turbo setup can be a "do it a yourself" project if you have the skill and equipement (welder, chop saw, sanders, etc) as shown by several of the guys here who did it themselves.
It's really not that hard, it's just a matter of welding together pieces of tubing cut from pre-formed U-bends, J-bends, straight pieces etc to fabricate the headers etc. Companies like Specialty Products Design and Burns Stainless offer the tubing in mils steel and stainless (304 and 321, as well as Inconel if you've got big $$). They also offer premade merge collectors and flanges. That makes it alot easier.
I tried to give a pretty good step by step description of the contruction of my setup on my website in the Exhaust section. Most of the guys who have done it have documented the process via their websites.
Good luck!
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From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
There are loads of reasons, but as the top two I'd mention that most mandrel benders (and for that matter compressoin benders) cannot make compound bends that tight or close together, and second, even if they can, they're rare. I believe that there are only 2 or 3 mandrel benders on the east coast.
Originally posted by 83 Crossfire TA
There are loads of reasons, but as the top two I'd mention that most mandrel benders (and for that matter compressoin benders) cannot make compound bends that tight or close together, and second, even if they can, they're rare. I believe that there are only 2 or 3 mandrel benders on the east coast.
There are loads of reasons, but as the top two I'd mention that most mandrel benders (and for that matter compressoin benders) cannot make compound bends that tight or close together, and second, even if they can, they're rare. I believe that there are only 2 or 3 mandrel benders on the east coast.
Um, they're not that rare. We have at least two shops i know of here in Topeka, KS, that have mandrel benders.
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From: Cheyenne, Wyoming
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
there are tons of CNC machines and CNC benders but none of the mandrel benders in my whole region of the US (rockys) is for exhaust pipe
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From: Caldwell,ID
Car: 2005 BMW 545i
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Originally posted by TheCamel
This is the RX-7 we are currewntly building...
Turbonetics Custom turbo
1992 Mazda Cosmos 20b (3 rotor not available in the US)
Electormotive TEC II engine management
6 1600cc/min injectors (160 lbs for you domestic guys)
BBK 58mm throttle body on custom sheet metal intake
Twin Aeromotive fuel pumps
Custom stainless steel exhaust manifold
Current engine is bone stock internals with 38,000 miles on it, should be in the 700hp range when complete, the engine is only in for test and tune of the electromotive system, as soon as tuning has been figured out the engine gets pulled and another "ported" engine gets installed. I know you all do not have a lot of knowledge on the rotoary and what a ported engine is, but it should be laying down close to 1200 hp when the race engine is installed, and yes, this will be streetable, and street legal....
Sean
This is the RX-7 we are currewntly building...
Turbonetics Custom turbo
1992 Mazda Cosmos 20b (3 rotor not available in the US)
Electormotive TEC II engine management
6 1600cc/min injectors (160 lbs for you domestic guys)
BBK 58mm throttle body on custom sheet metal intake
Twin Aeromotive fuel pumps
Custom stainless steel exhaust manifold
Current engine is bone stock internals with 38,000 miles on it, should be in the 700hp range when complete, the engine is only in for test and tune of the electromotive system, as soon as tuning has been figured out the engine gets pulled and another "ported" engine gets installed. I know you all do not have a lot of knowledge on the rotoary and what a ported engine is, but it should be laying down close to 1200 hp when the race engine is installed, and yes, this will be streetable, and street legal....
Sean
I just want to say I hate you
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From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Originally posted by xmind2006
just curious and not knowing, but what is the piece attached to the headers that has all the heat sinks on it?
just curious and not knowing, but what is the piece attached to the headers that has all the heat sinks on it?
Excellent looking project. I am looking to get my own turbo F body project rolling. I have already ordered a Miller Dynasty 200 DX TIG welder. Now I just need to decide on a material. I was looking around at Burns Stainless and other places. They have 321 SS and also 304 SS, what is the main difference? Mild steel looks great because of the price but is it worth the hassle using mild steel for a street strip car?
i must say thats the prettiest TT set up on a third gen i have EVER seen. most manifolds i see ....look like ***...i mean dont get me wrong, they do the job, but just dont look as pleasing as those.
it almost looks like that was a bolt on kit.....that is a seriously good job...i wanna know how long it took from beginning to end.
kudos on the job though seriously.....if you put as much time into your engine as you did into your turbo set up, i fear your car. i hope to never get beside you ever....you should draw up that schematic and sell that sucker to a company, or better yet, make your own and sell them. im sure once you do 3 - 4 pair you can whip them out pretty easily....its just the amount of man hours behind the first pair has got to be insane......
i can say it enough ....good job.... its people like you, that make me realize, people like me, should just give the hell up and buy a station wagon and leave it to the people like you to go fast.
it almost looks like that was a bolt on kit.....that is a seriously good job...i wanna know how long it took from beginning to end.
kudos on the job though seriously.....if you put as much time into your engine as you did into your turbo set up, i fear your car. i hope to never get beside you ever....you should draw up that schematic and sell that sucker to a company, or better yet, make your own and sell them. im sure once you do 3 - 4 pair you can whip them out pretty easily....its just the amount of man hours behind the first pair has got to be insane......
i can say it enough ....good job.... its people like you, that make me realize, people like me, should just give the hell up and buy a station wagon and leave it to the people like you to go fast.
Uh , dont be an ***, i wasnt aware your majesty of GM .... i dub thee' Citizen *****.
i dont give a rats red *** what its in, the engine bay is still pretty....and the engine is still GM , not *corvette* ..... you arrogant sob. --smack-- woot ban #4 for me.
i dont give a rats red *** what its in, the engine bay is still pretty....and the engine is still GM , not *corvette* ..... you arrogant sob. --smack-- woot ban #4 for me.
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From: Indianapolis, IN
Car: 2000 Trans Am
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Transmission: T56
I dont know what I did. Maybe he has a problem with people in positions of power?? Got me.
Either case, this is his first warning and if it happens again, Ill make sure the admins know and proper action will be taken. That was uncalled for.
Either case, this is his first warning and if it happens again, Ill make sure the admins know and proper action will be taken. That was uncalled for.
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
I finished it early last year, drove it around for the summer, took it to the track a couple of times (10.2 @ 163mph on radials), got bored with it and sold it to a guy in Hawaii who is putting a cage and back-half in it. I sold it and bought a Cigarette Racing Team boat, which I built a pair of 700hp Dart 540's for this past winter...
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Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Originally posted by Guido
I dont know what I did. Maybe he has a problem with people in positions of power?? Got me.
Either case, this is his first warning and if it happens again, Ill make sure the admins know and proper action will be taken. That was uncalled for.
I dont know what I did. Maybe he has a problem with people in positions of power?? Got me.
Either case, this is his first warning and if it happens again, Ill make sure the admins know and proper action will be taken. That was uncalled for.

Monty you are a nut case... and I'm jealous...
BW Supreme Member
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From: Kissimmee, FL
Car: 1991 Camaro RS
Engine: 357cid
Transmission: T5 Swap
Axle/Gears: 10bolt 7.5" 3.23 soon to be 3.73
Originally posted by rhuarc30
Don't worry bout the exhaust monty, turbos really quiet down the exhaust note. I'd worry more about the intake noise, lottsa times the intake is louder than the exhaust.
Don't worry bout the exhaust monty, turbos really quiet down the exhaust note. I'd worry more about the intake noise, lottsa times the intake is louder than the exhaust.
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From: Kissimmee, FL
Car: 1991 Camaro RS
Engine: 357cid
Transmission: T5 Swap
Axle/Gears: 10bolt 7.5" 3.23 soon to be 3.73
Originally posted by Monty
I finished it early last year, drove it around for the summer, took it to the track a couple of times (10.2 @ 163mph on radials), got bored with it and sold it to a guy in Hawaii who is putting a cage and back-half in it. I sold it and bought a Cigarette Racing Team boat, which I built a pair of 700hp Dart 540's for this past winter...
I finished it early last year, drove it around for the summer, took it to the track a couple of times (10.2 @ 163mph on radials), got bored with it and sold it to a guy in Hawaii who is putting a cage and back-half in it. I sold it and bought a Cigarette Racing Team boat, which I built a pair of 700hp Dart 540's for this past winter...
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From: West Hartford, CT
Car: '89 Z28tt
Engine: Dart Little M Twin Turbo
Transmission: T56
Or work your butt off, and achieve the same... Congrats on invading the waters. I always considered yanking the drivetrain out of the car if I ever got bored, and dropping the TT engine into a boat. If you ever venture up the Great Lakes into Lake Ontario or the St. Lawrence, give me a shout!
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
XJOSHX,
The valve covers are from CV Products, they are aluminum sheetmetal valve covers made for 18* NASCAR engines with valve spring oilers.
Saigon_Bob,
I don't know what your problem is, but how I earn and spend my money is my business, and I can assure you transporting drugs has nothing to do with it. Additionally, if I were to use my offshore powerboat to do so, it certainly wouldn't be "a new way to transport dugs via high speed". Smugglers have been using offshore powerboats for decades.
The valve covers are from CV Products, they are aluminum sheetmetal valve covers made for 18* NASCAR engines with valve spring oilers.
Saigon_Bob,
I don't know what your problem is, but how I earn and spend my money is my business, and I can assure you transporting drugs has nothing to do with it. Additionally, if I were to use my offshore powerboat to do so, it certainly wouldn't be "a new way to transport dugs via high speed". Smugglers have been using offshore powerboats for decades.
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Yes, I posted scans of the dyno sheets but it's probably under another thread from a year ago though. Here's a graphical representation ...
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From: MI
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Do you have any power numbers for lower in the power band? I am just wondeing how streetable a setup of this caliber is. Did you drive this on the street? If so, how did it do (off-idle power, engine temps, any lag, general drivability while just cruising around town)? If you had to name a down side or two to that combo (strictly the engine), what would it be? Also, what octane are those numbers with? If race gas, did you ever dyno or track it with pump gas?
Sorry for all the questions, I'm just real curious, that was quite some setup you put together.
Sorry for all the questions, I'm just real curious, that was quite some setup you put together.
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From: Kissimmee, FL
Car: 1991 Camaro RS
Engine: 357cid
Transmission: T5 Swap
Axle/Gears: 10bolt 7.5" 3.23 soon to be 3.73
Originally posted by Monty
Saigon_Bob,
I don't know what your problem is, but how I earn and spend my money is my business, and I can assure you transporting drugs has nothing to do with it. Additionally, if I were to use my offshore powerboat to do so, it certainly wouldn't be "a new way to transport dugs via high speed". Smugglers have been using offshore powerboats for decades.
Saigon_Bob,
I don't know what your problem is, but how I earn and spend my money is my business, and I can assure you transporting drugs has nothing to do with it. Additionally, if I were to use my offshore powerboat to do so, it certainly wouldn't be "a new way to transport dugs via high speed". Smugglers have been using offshore powerboats for decades.
PS: i meant i new way to smuggle drugs for you not other peeps.




:hail: that thing looks sweet as hell, good luck driving it when you get it on the road. 