85 Z28 Turbo ls1/T56 build - Third Generation F-Body Message Boards


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85 Z28 Turbo ls1/T56 build

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Old 06-17-2011, 11:40 PM   #1
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85 Z28 Turbo ls1/T56 build

So now that my build is to a point where the car is running and driving I decided to share the fun with you guys. I seriously would have had some major trouble building this car without the help of friends, family and some of you on this site, so I'd like to thank you for posting your problems and solutions for my reading pleasure.

My project starts off with a bone stock 1985 Camaro Z28 that had only 20,000 miles I bought about 10 years ago back when I was in high school. My plan was to just let the car sit and keep it for shows as an all original car, I changed my mind and decided to have some fun with it instead of let it sit and do nothing.








And so it began...




Let the header building begin
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Hot side done! Now the real work begins!
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Old 06-17-2011, 11:43 PM   #2
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Re: 85 Z28 Turbo ls1/T56 build

looking good. More pic's of how its sitting in your sig. What tire/rim combo. offset /bs / size , etc..
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Old 06-17-2011, 11:48 PM   #3
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Re: 85 Z28 Turbo ls1/T56 build

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Old 06-17-2011, 11:49 PM   #4
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Re: 85 Z28 Turbo ls1/T56 build

Keep it coming, or should we give it a break??

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Last edited by coolmarocrzy; 06-18-2011 at 12:01 AM.
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Old 06-18-2011, 12:25 AM   #5
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Re: 85 Z28 Turbo ls1/T56 build

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Wheels and tires are:

Fronts: 15x4 prostars with 26" MT S/R radials
Backs: 15x8 prostars 4.5 bs with 275/60's 28" tall MT ET street radials
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Old 06-18-2011, 12:43 AM   #6
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Re: 85 Z28 Turbo ls1/T56 build

No fun rev up or anything crazy. This was start up day and just let her run for a bit.

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Old 06-18-2011, 01:24 AM   #7
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Re: 85 Z28 Turbo ls1/T56 build

wow, your engine bay looks amazing. great job on the exhaust. i think i need to clean up the drool on my desk now......
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Old 06-18-2011, 01:29 AM   #8
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Re: 85 Z28 Turbo ls1/T56 build

That's ganna be one bad *** sleeper if you keep the oem wheels
Good work !!
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Old 06-18-2011, 03:25 AM   #9
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Re: 85 Z28 Turbo ls1/T56 build

Thanks guys, Yeah I broke down and got prostars. It doesn't get the looks i want when its just cruisen around on the stockers. People were like why is this stupid thirdgen with an exhaust leak tryin to race me. hahaha
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Old 06-18-2011, 03:50 AM   #10
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Re: 85 Z28 Turbo ls1/T56 build

Got it out in the sun finally... Guess its not all perfect. She likes to warm up pretty good. Think it needs better fans and and bigger radiator

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Old 06-18-2011, 11:02 AM   #11
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Re: 85 Z28 Turbo ls1/T56 build

Very nice ride! I like the turbo setup. How much power you think you are making on it?
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Old 06-18-2011, 12:31 PM   #12
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Re: 85 Z28 Turbo ls1/T56 build

wow, it's amazing!
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Old 06-18-2011, 02:20 PM   #13
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Re: 85 Z28 Turbo ls1/T56 build

Chassis dyno date is the last week of July at Speed Inc in Schaumburg Illinois. Car has a base tune from them right now. I'd like to see 675+ after the tune.

A local guy has a similar project in a 73 Nova and he made like 515 rwhp on 8lbs of boost with the master power T70 and a stock ls1. He upgraded to a Turbonetics tc78, bumped up the boost some and made 673rwhp! Here is a link to his thread on our local forums.

http://qcaautoforums.proboards.com/i...y&thread=10460



Another video of the car running and driving. This was the first week it ran.


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Old 06-18-2011, 07:09 PM   #14
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Re: 85 Z28 Turbo ls1/T56 build

Very clean car, nice work! Man I love turbos, no one knows what you got until it goes woooosh!


TC78 is my turbo of choice once I get to that point.
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Old 06-19-2011, 03:04 AM   #15
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Re: 85 Z28 Turbo ls1/T56 build

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Very clean car, nice work! Man I love turbos, no one knows what you got until it goes woooosh!


TC78 is my turbo of choice once I get to that point.


Got my TC78 on the way!! Decided it would be best to have it before the tune! 700 hp here I come!!
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Old 08-06-2011, 05:03 PM   #16
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Re: 85 Z28 Turbo ls1/T56 build

So the dyno day came and went. I'd say I'm impressed with the numbers the old coolmaro put down for me.
Boosted Ls motors are amazing.Got the TC78 Turbonetics
turbo on and we started on some 93 at 11psi.
Put some 110 in and kept upping boost until the fuel system couldn't handle any more.
Max 703 rwhp and 734 torque at 18psi. What a good day. Thats as close as they let us get to the dyno..
Kind of a bummer


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Old 08-06-2011, 06:20 PM   #17
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Re: 85 Z28 Turbo ls1/T56 build

Sick!

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Old 08-11-2011, 11:07 PM   #18
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Re: 85 Z28 Turbo ls1/T56 build

Sweet build. How the T56 feel with the turbo? Is it built? Who coated your hot pipes? Looks good!
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Old 08-12-2011, 09:17 AM   #19
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Re: 85 Z28 Turbo ls1/T56 build

Really nice numbers you put down!

What did you make your gauge panel out of? You did a really nice job on it.
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Old 08-14-2011, 06:34 PM   #20
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Re: 85 Z28 Turbo ls1/T56 build

this is one badass sleeper...
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Old 09-03-2011, 02:39 PM   #21
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Re: 85 Z28 Turbo ls1/T56 build

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Sweet build. How the T56 feel with the turbo? Is it built? Who coated your hot pipes? Looks good!

Sorry guys, haven't been on here in a while. The T56 is the most amazing part of the whole driving experience in this car. I wanted it streetable just for the fun of cruising around and shifting. There is nothing cooler than some dude looking over at you like what the hell is that as you shift and the blow off valve makes a nice pshhhhhh. The pipes were ceramic coated by a very good company called QC coatings in Michigan. About $400 for everything, but well worth it to me.


Drkhrse89: Thank ya! The gauge panel was purchased from jimmy-jams website. Its just a steel plate painted with all the holes drilled and ready to go. He sells after market stuff like that for thirdgens. I tried making my own and couldn't get it right, so I broke down and bought his for only $55 and it fit great.

Thanks again guys! I'm driving the car at least 3 times a week and its running great. I hit 15.6 psi just playin around the other day and I about sharted in my pants!
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Old 09-03-2011, 09:27 PM   #22
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Re: 85 Z28 Turbo ls1/T56 build

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I hit 15.6 psi just playin around the other day and I about sharted in my pants!
when you do shart ur pants, u should take a pic and put it in ur build thread lol. bound to happen with those numbers lol.
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Old 09-03-2011, 10:12 PM   #23
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Re: 85 Z28 Turbo ls1/T56 build

^^^ Hahaahaa! Good call! I think a few of my buddies have done sharted themselves based on their facial expression after I get into it.
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Old 09-03-2011, 11:13 PM   #24
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Re: 85 Z28 Turbo ls1/T56 build

Amazing car.... I'd love to do something similar myself one day. Im in love with the idea of a turbo smallblock that's daily drivable.

I also think you should put the stock wheels back on. You could surprise the hell out of people with them. I normally hate those 15s, but on your car with THAT motor I woudlnt want anything else. Maybe some IROCs... But with the stock 15's your car, THATS the package!

The wheels on it look nice but you kill the sleeper part of it. And you REALLY need to drop the rear suspension a little.

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Old 09-04-2011, 10:39 AM   #25
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Re: 85 Z28 Turbo ls1/T56 build

Sweet build! You have any pics how you mounted the intercooler? I notched my bumper and boxed it, then drilled a series of 2" holes in it..for looks and airflow.
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Old 09-04-2011, 10:57 AM   #26
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Re: 85 Z28 Turbo ls1/T56 build

nice build

what altenator bracket is that
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Old 09-04-2011, 05:56 PM   #27
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Re: 85 Z28 Turbo ls1/T56 build

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The wheels on it look nice but you kill the sleeper part of it. And you REALLY need to drop the rear suspension a little.
Its tough to be a lowrider with 28" tall tires.


Oh and coolmaro are you going to give us any specifics on the motor or is that on an "if I told you I would have to kill you" basis?

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Old 09-05-2011, 10:47 PM   #28
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Re: 85 Z28 Turbo ls1/T56 build

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Its tough to be a lowrider with 28" tall tires.
It's not about being a lowrider. Every good looking drag car is lowered.

I suggest you pull out the rear spring isolator and replace it with some heater hose around the first coil of the spring. Only a half inch drop, but it makes a difference, it's cheap, it's easy, and it wont affect your spring rates or your pinion angle much at all. Just a very subtle drop that doesnt tweak the rest of the setup too much.
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Old 09-06-2011, 09:39 AM   #29
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Re: 85 Z28 Turbo ls1/T56 build

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Drkhrse89: Thank ya! The gauge panel was purchased from jimmy-jams website. Its just a steel plate painted with all the holes drilled and ready to go. He sells after market stuff like that for thirdgens. I tried making my own and couldn't get it right, so I broke down and bought his for only $55 and it fit great.
Thank you! I had the same problem and yours looks great and that is not a bad price either.
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Old 09-06-2011, 12:58 PM   #30
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Re: 85 Z28 Turbo ls1/T56 build

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Its tough to be a lowrider with 28" tall tires.

no it's not


the car looks great coolmarocrzy! im glad you chose to do something with the car. i also like that you didn't do anything permanent, so you can go back easily if you so chose to.

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Old 10-01-2011, 02:04 AM   #31
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Re: 85 Z28 Turbo ls1/T56 build

Thanks guys! I do agree about the back end.. its a little high for my taste, but I was just pushing to get it running and tuned so I could drive it this summer. I have some major plans for the winter down time. Like some new brakes!! I hit 120 just havin fun the other day and it felt like I wasn't ever going to slow down. They are manual brakes and its not terrible... but they could do better. Its just the stock calipers and rotors at this point. I still have my stock wheels I plan to throw back on it for ***** and giggles some time.. They will need some good tires though.. Otherwise they'll just burn off. haha

The alternator and bracket is a stock setup from an ls1 f-body. She fits juuuuust right.

I will post a few pics of the intercooler mock up. I had it right infront of the radiator at first and that really killed my cooling, so I moved it forward.

The motor specs are nothing real special. Turbos just love boost! haha 5.3 bored to ls1 specs with diamond pistons, 8.5:1 compression, cometic head gaskets with ARP head studs, comp cams turbo cam, and an ls6 intake and tb. Fuel pump is the bosch 044 and I'm already thinkin about upgrading to bigger. This motor still has more.. It was leaning out on that last pass so he quit a little early.

mw66nova: That car looks great man. I love the stance.

Last edited by coolmarocrzy; 10-01-2011 at 02:14 AM.
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Old 10-03-2011, 08:45 PM   #32
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Re: 85 Z28 Turbo ls1/T56 build

Not sure how i missed this thread until now but this is a badass car and even better in person . I saw your car at the track sunday but never did see you.
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Old 10-11-2011, 10:20 PM   #33
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Re: 85 Z28 Turbo ls1/T56 build

Sorry Tyler.. I was just hangin around. Never ran the car.. Didn't feel like gettin kicked out on such a nice day.
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Old 10-17-2011, 05:06 AM   #34
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Re: 85 Z28 Turbo ls1/T56 build

Wow, what a nice car! You really did a great job with it.
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Old 11-01-2011, 04:10 AM   #35
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Re: 85 Z28 Turbo ls1/T56 build

Nice build. Definitely a sleeper though. I need a set of those headers for sure so I can build mine.
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Old 01-08-2012, 10:46 AM   #36
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Re: 85 Z28 Turbo ls1/T56 build

any pics of the intercooler mounted?
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Old 01-08-2012, 12:00 PM   #37
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Re: 85 Z28 Turbo ls1/T56 build

This is just clean, great build crazy numbers.
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Old 01-24-2012, 09:53 PM   #38
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Re: 85 Z28 Turbo ls1/T56 build

Very nice build. Good job!
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Old 01-25-2012, 11:15 AM   #39
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Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA


Re: 85 Z28 Turbo ls1/T56 build

Such a clean build. Did you fab your own turbo piping? I might have overlooked that.

Very impressed with the overall clean original look of the car. The numbers are very impressive, and make me wanna get a new credit card LOL!
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Old 01-25-2012, 02:15 PM   #40
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Re: 85 Z28 Turbo ls1/T56 build

You should market your turbo piping
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Old 01-25-2012, 02:25 PM   #41
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Re: 85 Z28 Turbo ls1/T56 build

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You should market your turbo piping
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Old 01-25-2012, 03:22 PM   #42
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Re: 85 Z28 Turbo ls1/T56 build

Maybe I missed it, and I apologize if I did, but are there any shots of the crossover? How much clearance do you have down there?
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Old 01-26-2012, 09:09 AM   #43
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Re: 85 Z28 Turbo ls1/T56 build

That is one of the nicest low mileage 85 Z's I have ever seen. Very nice job!! Man do I ever want to go turbo.....
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Old 02-24-2012, 01:20 PM   #44
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Engine: LSX 6.0 370, TU2 Cam, Fast intake
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Re: 85 Z28 Turbo ls1/T56 build

Awsome build man im looking into collecting all the parts over the summer to build one over the winter. Where did you get all the tubung and so on to build it. Thanks
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Old 02-24-2012, 05:39 PM   #45
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Re: 85 Z28 Turbo ls1/T56 build

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Awsome build man im looking into collecting all the parts over the summer to build one over the winter. Where did you get all the tubung and so on to build it. Thanks

Thanks man, I have a buddy who owns a local shop called Yates EFI. He does ls swaps in anything and everything. (meanyellowz is his name on here) He sent me in the direction of a site caled Mandrel-bends.com He said he orders most of his tubing from there. Great place and pretty reasonable prices.
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Old 02-24-2012, 05:50 PM   #46
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Re: 85 Z28 Turbo ls1/T56 build

so when you starting on mine? I wanna go fast too
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Old 02-24-2012, 05:51 PM   #47
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Re: 85 Z28 Turbo ls1/T56 build

I'll say it again, and again, and again!!!! I just love looking at this car! Nothing like a stock looking Z to shock the hell out of all the ricers who want to go. This car is just clean.
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Old 02-24-2012, 08:03 PM   #48
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Re: 85 Z28 Turbo ls1/T56 build

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so when you starting on mine? I wanna go fast too

We can start on yours whenever your ready! I'd love to do another turbo build. Only this time on someone else's wallet!


Thanks coptzer! I spy a nice little project your getting started with too! Can't wait to see it come together.

Last edited by coolmarocrzy; 02-24-2012 at 08:05 PM. Reason: added some words
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Old 02-24-2012, 08:28 PM   #49
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Re: 85 Z28 Turbo ls1/T56 build

seems pretty cheap Would save me from building new big tube headers this year as well.
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Old 02-26-2012, 10:01 AM   #50
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Re: 85 Z28 Turbo ls1/T56 build

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Maybe I missed it, and I apologize if I did, but are there any shots of the crossover? How much clearance do you have down there?
.
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