Single turbo 352 iroc 1000hp or bust the grand finale
#651
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Car: '86 Grand National
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Why so much boost on the first run? Wastegate issue?
#654
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
i may have underestimated what the elevation change would have on the car just a lil bit lol
home is 6,500 ft above sealevel , tracj is only 1,800 ft above sea level
car will be back up and running on monday or tuesday , got back so late last night we didnt even unload the trailer
home is 6,500 ft above sealevel , tracj is only 1,800 ft above sea level
car will be back up and running on monday or tuesday , got back so late last night we didnt even unload the trailer
#655
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Car: '88 Formula, '94 Corvette, '95 Bird
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Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Single turbo 352 iroc 1000hp or bust the grand finale
i may have underestimated what the elevation change would have on the car just a lil bit lol
home is 6,500 ft above sealevel , tracj is only 1,800 ft above sea level
car will be back up and running on monday or tuesday , got back so late last night we didnt even unload the trailer
home is 6,500 ft above sealevel , tracj is only 1,800 ft above sea level
car will be back up and running on monday or tuesday , got back so late last night we didnt even unload the trailer
I'm on the coast. Track is at 90ft. Streets are sometimes at sea level, especially after a storm
btw, I'm running an aluminum driveshaft. Always good to have a cheap 'fuse' in the driveline
-- Joe
#656
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
friend of mine broke his aluminum shaft when he hit 2nd gear at the track. slapped around on the bottom of the car, smashed a hole in the floorboard, set off the air bags, tore up the dash and steering wheel, and busted the windshield. lol
#658
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Car: 92 formula, sd,730ecm with $59
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Damn I ran two different f bodies 94 and 92 into the 9s on stock aluminum drive shafts never any issues. The 94 was 1.37 short times. I took time to set pinion at 2 degrees down on mine and worked great.
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
When I was into trucks we used to break driveshafts regularly.
The driveshaft breaks, the slip yoke shoots out the back of the transmission, and the loop contains the shaft.
Sometimes it would break at the rear end, and the loop would just contain the shaft from banging against the tunnel.
-- Joe
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
-- Joe
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Car: '88 Formula, '94 Corvette, '95 Bird
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Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Single turbo 352 iroc 1000hp or bust the grand finale
#663
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Why is this even a discussion. At these horsepower levels, a driveshaft loop should be employed, especially running a different transmission than what the car originally came with as well as a home fabricated transmission mount for the replacement. If this really did happen, I am not surprised. If I had to guess, it happened off idle by the tree, which is shocking because looking at those rear tires I doubt they even hooked that hard...
#664
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
I only seen shafts break at the launch hit. Never any other time. Depends where they break a loop contains it for most part but if they twist up and snap nearer to the axle like projects, then a front loop isnt going to help much, the rear piece is gonna be thrown about wildly still lol
I would run beefy driveshafts. Imo you want the rear gear to break before anything else. I dont want a driveshaft problem to take out my transmission output shaft
I would run beefy driveshafts. Imo you want the rear gear to break before anything else. I dont want a driveshaft problem to take out my transmission output shaft
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
joe is correct it wheel hopped broke at the front u joint first from what i can tell.
im not sure why it wheel hopped pinion angle is correct lca's are darn near perfect , the drag shocks wer eon the car when i bought it but they seem ok
my only guess is that the rear of the car being rasied caused it , i need to make sure my tq arm mount isnt flexing as well i made my own xmember mount for the tq arm when i did the trans swap , witht he old setup the thing never hopped , i got 5 inches of snow on the ground again and its still comming down so i cant even take the thing out on the street and see what it does
im not sure why it wheel hopped pinion angle is correct lca's are darn near perfect , the drag shocks wer eon the car when i bought it but they seem ok
my only guess is that the rear of the car being rasied caused it , i need to make sure my tq arm mount isnt flexing as well i made my own xmember mount for the tq arm when i did the trans swap , witht he old setup the thing never hopped , i got 5 inches of snow on the ground again and its still comming down so i cant even take the thing out on the street and see what it does
Last edited by project89; 11-16-2015 at 09:23 AM.
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Single turbo 352 iroc 1000hp or bust the grand finale
I only seen shafts break at the launch hit. Never any other time. Depends where they break a loop contains it for most part but if they twist up and snap nearer to the axle like projects, then a front loop isnt going to help much, the rear piece is gonna be thrown about wildly still lol
I would run beefy driveshafts. Imo you want the rear gear to break before anything else. I dont want a driveshaft problem to take out my transmission output shaft
I would run beefy driveshafts. Imo you want the rear gear to break before anything else. I dont want a driveshaft problem to take out my transmission output shaft
Then again, I agree, I've never seen a driveshaft break (on a drag car) that wasn't within 20 feet of the starting line.
-- Joe
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
95% of the time it will break int he burnout box . starting line
ive seen them break mid track and on the top end though , useally the damage starts off the line though by a crack in the u joint and the force applied down track finishes it off
most mid to down track ones have really bad damage to the car
#671
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
i've seen them explode down track. one instance i can think of came through the floorboard and tangled up the driver's arm. she got hurt BAD. you guys are assuming a lot of things would remain controlled in the event of a failure. i've seen slip yokes explode and take off the entire rear of the transmission.
at this level, you should be running billet yokes, solid 1350 joints, and at least a 3" chromoly shaft. you want the ring/pinion to be your fuse. at least that is somewhat contained if it goes.
with 4 digit power, mechanical mayhem knows no bounds. get this idea of "that's impossible" out of your heads and realize that every piece needs to be given attention.
at this level, you should be running billet yokes, solid 1350 joints, and at least a 3" chromoly shaft. you want the ring/pinion to be your fuse. at least that is somewhat contained if it goes.
with 4 digit power, mechanical mayhem knows no bounds. get this idea of "that's impossible" out of your heads and realize that every piece needs to be given attention.
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
I think he is saying wheel hop in the box caused it, and if that is the case there is no way he was seeing four digit numbers to the tires spinning, especially with those tires he is running, in the water box, despite the gauge hitting 18 pounds. I think he pretty much underlined what happened; he made his own trans member, his own torque arm bracket, we have no idea if the driveshaft was altered to accommodate the 700R4 to T350 swap difference, something apparently just went wrong with his setup during wheel hop. I do agree though, any build should really beef up those areas you mentioned, otherwise it defeats the purpose in building a ten second or faster project. I mean, there is of course a reason why the NHRA wants to see a driveshaft loop with any vehicle running slicks, or running 11.49 or faster...
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Car: '88 Formula, '94 Corvette, '95 Bird
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Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Single turbo 352 iroc 1000hp or bust the grand finale
This whole ET and time slip pissing contest was cute 20 years ago.
I'm really glad your car is kinda fast, and you contribute to the forum. But that doesn't give you or anyone else a license to be a jerk.
-- Joe
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Street Lethal ... that many passes and that many posts means you have no life, but if you want to call me out PM me and we will put something together. There is absolutely no reason to fawk up someone's build thread, I am right here, PM and we'll get it done.
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Originally Posted by Orr89RocZ
Yet street can post this?
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Car: 89 RS 89 iroc 87 firebird
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Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
8* last night
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
yeah , i took s nasty fall off the trailer yesterday getting some things out of the car , going to try to finally unload the car off the trailer after lunch , not going to do a whole lot to it right now till it gets closer to race season again. instead im going to focus on my turbo bike build for the time being
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Originally Posted by project89
yeah , i took s nasty fall off the trailer yesterday getting some things out of the car , going to try to finally unload the car off the trailer after lunch , not going to do a whole lot to it right now till it gets closer to race season again. instead im going to focus on my turbo bike build for the time being
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
You've been hurting yourself all year, time for a break from these projects. Been quietly getting the turbo I6 Trailblazer done myself, I have no choice but to go Megasquirt with it. Oh, and I'm stealing that paint code of yours for the Trailblazer, so hand it over lol...
midnight pearl blue , thecoatingstore.com
yeah i may end up hurt once i get this project finished
230 pounds 60ish hp on the low end who knows on the upper end of the boost scale
motor makes just shy of 30hp n/a stock @ 250cc were punching it out to about 305cc ported head and a cam , turbo is set to 15psi and can be turned up into the 20's
#684
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Nice, I went in looking for a color for the Trailblazer, and I found one for the GTA...
What's the story with the dirt bike, is that a passtime in Utah...?
What's the story with the dirt bike, is that a passtime in Utah...?
Originally Posted by project89
midnight pearl blue , thecoatingstore.com
yeah i may end up hurt once i get this project finished
230 pounds 60ish hp on the low end who knows on the upper end of the boost scale
motor makes just shy of 30hp n/a stock @ 250cc were punching it out to about 305cc ported head and a cam , turbo is set to 15psi and can be turned up into the 20's
yeah i may end up hurt once i get this project finished
230 pounds 60ish hp on the low end who knows on the upper end of the boost scale
motor makes just shy of 30hp n/a stock @ 250cc were punching it out to about 305cc ported head and a cam , turbo is set to 15psi and can be turned up into the 20's
#688
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Re: Single turbo 352 iroc 1000hp or bust the grand finale
Haha Joe, no alcohol means no topless bars, Dave must be dying out there lmao. I'm right between NYC and Atlantic City, I don't think I'll ever leave this area. I would be lost in Utah, some of the videos Dave throws up I find myself waiting for a UFO to jump out, reminds me of Area 51 lol. I would lose my mind out there, especially with no damn alcohol. I do like the dirt bike idea though, it's cool. I've had a Honda Hurricane sitting in my cousins garage back in Queens N.Y. for years, maybe one day I'll do something with it.
#691
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
cant buy everclear, 151 and some other things like that here , not that i drink that stuff anymore but atleast i can get my yager here thought its about 3x as exspensive as anywere else
aparently the video is to big to send from my buddies phone to me, so just gota wait till hes back in town which wont be till next weekend , he lives and works out of state and comes back home on the weekends to do stuff at the farm and see his family
lmao , i just finally unloaded the car off the trailer back into the shop right before we left for lunch , no way in hell was i unloading that thing in a foot + of snow. ill get around to the car later today or saturday and have some form of update on it .
i dont plan on doing a whole lot with it till i finish the turbo bike project to be honest. that was the last event of the year till either january or february , and since its nothing but bad weather right now im not in a rush to fix it so i can street drive it, theres no point. i will however have it back up and running before the next event , we just dont know if it will be jan or feb yet
Last edited by project89; 11-20-2015 at 01:12 PM.
#693
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
#696
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
#698
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
i dont know how it happened but afterwards in the pits we tried to refire the engine and it would barley run , ms was reading 90 on the map , boost gauge was reading like 2-3 inches of vacum.
whe checked the line first to see if it was kinked or otherwise blocked and when i refired the motor got no vacum over the map line , so then pulled the brake booster hose and it felt like air was comming out of it.
so then we proceeded to yank the covers check all the valves , nothing wrong there , so then we yanked the intake nothing wrong reassembled it
at this point i figure the motor is really hurt somehow before we loaded it back on the trailer i grabbed the distributor and tried to move it put it was locked down good check the timming and it was way off 30 something degrees late.
fixed that and the motor fired right back up and sounded good havent touched it since , may have accidently revresed the ignition triggering in the ecm when i had hooked up the laptop to see what was up but i doubt it but it is possible since i had 2 different ecms in the car with 2 different ignition setups and when i plugged the laptop back in it may have loaded the settings from the other ecm into the one i was currently using
its something i need to look into this week on why timing went from 10* btdc to 2x atdc
whe checked the line first to see if it was kinked or otherwise blocked and when i refired the motor got no vacum over the map line , so then pulled the brake booster hose and it felt like air was comming out of it.
so then we proceeded to yank the covers check all the valves , nothing wrong there , so then we yanked the intake nothing wrong reassembled it
at this point i figure the motor is really hurt somehow before we loaded it back on the trailer i grabbed the distributor and tried to move it put it was locked down good check the timming and it was way off 30 something degrees late.
fixed that and the motor fired right back up and sounded good havent touched it since , may have accidently revresed the ignition triggering in the ecm when i had hooked up the laptop to see what was up but i doubt it but it is possible since i had 2 different ecms in the car with 2 different ignition setups and when i plugged the laptop back in it may have loaded the settings from the other ecm into the one i was currently using
its something i need to look into this week on why timing went from 10* btdc to 2x atdc
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Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Single turbo 352 iroc 1000hp or bust the grand finale
You could't pay me enough money in the world to work in those conditions... You are a true warrior.
Track don't open until April here, so I've got all winter (in my climate controlled shop) to finish my car.
-- Joe
Track don't open until April here, so I've got all winter (in my climate controlled shop) to finish my car.
-- Joe
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Single turbo 352 iroc 1000hp or bust the grand finale
lol yeah when i was younger id be out there in the rain snow whatever working on my stuff , im a bit more relaxed and patient now