87 Iroc LT1 Single Turbo Build
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
87 Iroc LT1 Single Turbo Build(***56K warning)
Well I figured I would post my build, Ive had it on other sites for a while but it seems whenever I post my car it doesnt get much love bc its an LT1 swap but whatever :P
Well here are some pics before..then the slooooow transition.
Plans.
Run 12lbs boost on 94 octane WITH Meth
Engine Specs
383 LT1 (oringed)(9.78:1 comp)(downfall)
4 Bolt Splayed Mains
Eagle 3.75 Crank (forged)
Eagle H-Beams (Forged)
JE -28CC pistons (forged)
LE2 Ported heads
1.6RR
Cam- Custom Comp 230/236 .544/.555 114LSA
Ported Intake
58mm TB
Double Roller Timing Chain
Electric Water pump
7.5 Quart Pan
Drive Train
I sold the Moser 12 bolt and the 10bolt 3.42 is back in (stupid me)
Built 4l60e
3000 Midwest Stall
Frame
Hotchkis Subframe Connectors
BMR Trackpak Chromemoly Adjustable Torque Arm Bar
Hotchkis LCA's
Hotchkis 1.5inch Drop (not installed)
Competition 8pnt Cage(awaiting still)
Fuel System
Dual Intank 255 Walbros
-6AN off each pump to a Single -8an Feed
-Moddified fuel rails to except -8an fittings
-Areomotive FPR
-60# seimems injectors
TURBO Setup
Custom hotside
50MM wastegate
2-1G DSM BOVs
31x12x3 Intercooler
3inch cold side piping
METH injection
Garret/AiResearch TH08A64
74mm Turbine
.96 A/R (hot)
.95 A/R(cold)
T6 Flange
5inch DP
Enjoy!
I will update as much as possible.
IMGP2978.jpg?t=1225330041
Well here are some pics before..then the slooooow transition.
Plans.
Run 12lbs boost on 94 octane WITH Meth
Engine Specs
383 LT1 (oringed)(9.78:1 comp)(downfall)
4 Bolt Splayed Mains
Eagle 3.75 Crank (forged)
Eagle H-Beams (Forged)
JE -28CC pistons (forged)
LE2 Ported heads
1.6RR
Cam- Custom Comp 230/236 .544/.555 114LSA
Ported Intake
58mm TB
Double Roller Timing Chain
Electric Water pump
7.5 Quart Pan
Drive Train
I sold the Moser 12 bolt and the 10bolt 3.42 is back in (stupid me)
Built 4l60e
3000 Midwest Stall
Frame
Hotchkis Subframe Connectors
BMR Trackpak Chromemoly Adjustable Torque Arm Bar
Hotchkis LCA's
Hotchkis 1.5inch Drop (not installed)
Competition 8pnt Cage(awaiting still)
Fuel System
Dual Intank 255 Walbros
-6AN off each pump to a Single -8an Feed
-Moddified fuel rails to except -8an fittings
-Areomotive FPR
-60# seimems injectors
TURBO Setup
Custom hotside
50MM wastegate
2-1G DSM BOVs
31x12x3 Intercooler
3inch cold side piping
METH injection
Garret/AiResearch TH08A64
74mm Turbine
.96 A/R (hot)
.95 A/R(cold)
T6 Flange
5inch DP
Enjoy!
I will update as much as possible.
IMGP2978.jpg?t=1225330041
Last edited by Jay_rich; 01-10-2009 at 01:10 PM.
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
This pic was taken with my phone (just a mock up of where the rad will be)
----------
Yes I did the brakes by myself. The savings was rediculous lol. I did however bye the Brackets from BIGBRAKEUPGRADE.COM
http://i126.photobucket.com/albums/p...s1vs3rggen.jpg
There will be more to follow as the car is under about 1 foot of snow when I got up today lol.
----------
Yes I did the brakes by myself. The savings was rediculous lol. I did however bye the Brackets from BIGBRAKEUPGRADE.COM
http://i126.photobucket.com/albums/p...s1vs3rggen.jpg
There will be more to follow as the car is under about 1 foot of snow when I got up today lol.
Last edited by Jay_rich; 01-10-2009 at 01:07 PM. Reason: Automerged Doublepost
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Re: 87 Iroc LT1 Single Turbo Build(***56K warning)
u and me both . I too posted my turbo SBC build up on another site but didnt get any feedback . i would not let it get u. It seems today that if your not building an LSx no one cares , kinda weird. Nice build, i would suggest u should install a air to air intercooler instead of using meth.
#7
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build(***56K warning)
u and me both . I too posted my turbo SBC build up on another site but didnt get any feedback . i would not let it get u. It seems today that if your not building an LSx no one cares , kinda weird. Nice build, i would suggest u should install a air to air intercooler instead of using meth.
Jay
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Car: 1989 GTA
Engine: Future: LSX Turbo
Transmission: built T-56
Re: 87 Iroc LT1 Single Turbo Build(***56K warning)
Really nice job, ppl like you inspire me to start my own turbo build faster than I really should. Keep up the good work.
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Yea I decided I was tryin to sell the car in the summer, bc I never thought I would do what I want to do..turbo it. So once the end of summer came I raced the car and was hooked again. Ran consistent 11.79s/80s. Came home and started stripping it for the winter. I still have a long ways to go but I cant wait to fire her up!
Jay
Jay
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Car: 92 Camaro Z28
Engine: 383
Transmission: T56
Axle/Gears: 9"
Re: 87 Iroc LT1 Single Turbo Build
Nice fishing pole collection and bbq grille man! build looks good so far, i actually find projects like this more interesting than the lsx builds. little bit of old school little bit of new school.
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Car: 86 IROC-Z
Engine: Superramed 355 w/ intercooled T72
Transmission: T56 -=- www.iroc-ss.com
Re: 87 Iroc LT1 Single Turbo Build
That's going to be a sweet setup bro. GL!
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Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Re: 87 Iroc LT1 Single Turbo Build
I wanna do this in my 85 with my vortec set up and blow thru carb. I have a radiator bout that same size for my car...It came from a local circle track shop. This just gave the idea to do the same style setup. I alway liked the idea of mounting the turbo there, just didnt know what to do about the radiator...cuz im cheap and dont wanna buy stuff over again.
Yeah, BWs400 on a vortec 350ci! yeah...With my port work, and matching cam, 750rwhp would probably be right there....
Yeah, BWs400 on a vortec 350ci! yeah...With my port work, and matching cam, 750rwhp would probably be right there....
#16
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
I wanna do this in my 85 with my vortec set up and blow thru carb. I have a radiator bout that same size for my car...It came from a local circle track shop. This just gave the idea to do the same style setup. I alway liked the idea of mounting the turbo there, just didnt know what to do about the radiator...cuz im cheap and dont wanna buy stuff over again.
Yeah, BWs400 on a vortec 350ci! yeah...With my port work, and matching cam, 750rwhp would probably be right there....
Yeah, BWs400 on a vortec 350ci! yeah...With my port work, and matching cam, 750rwhp would probably be right there....
Jay
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Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Re: 87 Iroc LT1 Single Turbo Build
Yea I was originally gonna get a BW S400 but it was sooo big, so i decided T4 THEN this turbo came up on the turbo forums for 330 shipped to me. So said meh I will make room . It is also upgradeable to a 88mm. That will be next year. As well as TF heads and like 18PSI!
Jay
Jay
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Car: 1987 Z28
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Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
more shiiiiit lol. I keep getting all of these parts but no time to work on the car.
I bought a full header kit but im only using the flanges,bolts and a couple of the bends since im gonna just built logs (way easier)
Also picked up my 5inch Vband and 2.5inch V-bands, and some billit feeds/drains from paradise racing (shipped it to canada in 2 days!)
Also got my -8an fuel filter and my -8an fuel line.
And random couplers etc.
Jay
I bought a full header kit but im only using the flanges,bolts and a couple of the bends since im gonna just built logs (way easier)
Also picked up my 5inch Vband and 2.5inch V-bands, and some billit feeds/drains from paradise racing (shipped it to canada in 2 days!)
Also got my -8an fuel filter and my -8an fuel line.
And random couplers etc.
Jay
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well more stuff for the pile lol.
I started putting the dash harness in what a pain...hopefully if we get another couple nice days I will get most of the interior back in.
I picked up a Snow Performance Meth kit with the Maf variable controller and 2 nozzles a Wablro GS340 (2nd one) since they were on sale and an AEM wideband
I also did my LS1 brake swap. I should have taken a pic before With the rotors off so you could tell what I had to modify.
Fairly easy swap none the less, and should stop WAY better and looses 10lbs off the front end!
Jay
I started putting the dash harness in what a pain...hopefully if we get another couple nice days I will get most of the interior back in.
I picked up a Snow Performance Meth kit with the Maf variable controller and 2 nozzles a Wablro GS340 (2nd one) since they were on sale and an AEM wideband
I also did my LS1 brake swap. I should have taken a pic before With the rotors off so you could tell what I had to modify.
Fairly easy swap none the less, and should stop WAY better and looses 10lbs off the front end!
Jay
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well i was working on the interior and whatnot and i got rained out so did a small bit of welding.
I also got the engine harness in the car.
I got the 90* for #7 tacked in and the transistion from 1 5/8s to 2 1/2inch done. IM gonna bring the pipe to work and drill the holes for the rest of the primaries.
I still need to grind the weld and make sure its all good.
Jay
I also got the engine harness in the car.
I got the 90* for #7 tacked in and the transistion from 1 5/8s to 2 1/2inch done. IM gonna bring the pipe to work and drill the holes for the rest of the primaries.
I still need to grind the weld and make sure its all good.
Jay
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Car: 87 IROC Z28
Engine: Custom Forged 355
Transmission: 700R4
Axle/Gears: 9" 4:11's Detroit Locker
Re: 87 Iroc LT1 Single Turbo Build
jus got my s475 in the mail from paradise racing.....that thing is huge...im gonna move my rad like you did and mount it infront of the water pump....still tryin to figure out how to mount the turbo there solid so its 49 lbs doesnt sit on my crossover pipes and crack them any pics of how you did it....
and is that a t6 flage merge...what size pipe is that...i was gonna use 3 inch crossovers and merge them jus like you did....any help would be great....and that thing is gonna be an animal hope you ready...
and is that a t6 flage merge...what size pipe is that...i was gonna use 3 inch crossovers and merge them jus like you did....any help would be great....and that thing is gonna be an animal hope you ready...
#24
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
jus got my s475 in the mail from paradise racing.....that thing is huge...im gonna move my rad like you did and mount it infront of the water pump....still tryin to figure out how to mount the turbo there solid so its 49 lbs doesnt sit on my crossover pipes and crack them any pics of how you did it....
and is that a t6 flage merge...what size pipe is that...i was gonna use 3 inch crossovers and merge them jus like you did....any help would be great....and that thing is gonna be an animal hope you ready...
and is that a t6 flage merge...what size pipe is that...i was gonna use 3 inch crossovers and merge them jus like you did....any help would be great....and that thing is gonna be an animal hope you ready...
I used 2 2.5 inch pipes it works out exact! so if ur using 3 inch i would say buy 1 2.5inch U bend then cut it in half then weld on some reducers that are 2.5-3inch.
Jay
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Car: 1987 Z28
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Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well I was stuck at work till 5am and came home to weld my header...
It turned out okay gonna need alot of grinding etc but it should work!
I was having issues laying a nice bead bc my damn 200 dollar welders wheels for the wire feed stick constantley. I am really thinking about trading her in and upgrading to a lincoln 140 or something.
Anyways here is the drivers side without and grinding and cleaning.
I also welded a bead inside the flange.
Jay
It turned out okay gonna need alot of grinding etc but it should work!
I was having issues laying a nice bead bc my damn 200 dollar welders wheels for the wire feed stick constantley. I am really thinking about trading her in and upgrading to a lincoln 140 or something.
Anyways here is the drivers side without and grinding and cleaning.
I also welded a bead inside the flange.
Jay
Last edited by Jay_rich; 02-13-2009 at 12:16 PM.
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Car: 86 berlinetta 92rs gfx
Engine: 4 bolt 384 stroker
Transmission: th350 4000 stall manual/T brake
Axle/Gears: 87 iroc 9 bolt
Re: 87 Iroc LT1 Single Turbo Build
i was watching this on theturboforums. sweet build.
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Car: 1987 Z28
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Re: 87 Iroc LT1 Single Turbo Build
sadly no its been -14*C here for the past 2 weeks . I am gonna get the interior done and meth kit in. I decided I am gonna make 1/2inch thick header flanges and make new headers just to be safe. I have the new welder so why not.
Hopefully soon I will have some more updates!
Jay
Hopefully soon I will have some more updates!
Jay
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Re: 87 Iroc LT1 Single Turbo Build
Well i got some more stuff done today, All my gauges are rewired and hooked up, I put all the seats in and I got part of the crossover welded. I am awaiting my flew pipes and to build my new flanges at work this week.
I Need to order a few more parts but need to wait about a week, since I am heading to cuba in a week I dont want parts showing up when I am not home then getting sent back.
Jay
Almost there tho, now with the interior in I am getting the itch!
I Need to order a few more parts but need to wait about a week, since I am heading to cuba in a week I dont want parts showing up when I am not home then getting sent back.
Jay
Almost there tho, now with the interior in I am getting the itch!
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Car: 86 berlinetta 92rs gfx
Engine: 4 bolt 384 stroker
Transmission: th350 4000 stall manual/T brake
Axle/Gears: 87 iroc 9 bolt
Re: 87 Iroc LT1 Single Turbo Build
looks good, lovin those gauges!
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Car: 1987 Z28
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Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well I decided the flanges I got in my kit are **** and I dont wanna finally get the car running and run into issues with not sealing the headers.
So I ordered some 3/8 cold-rolled steel from work (18 bucks for both) and last night I was super bored so decided to cut them on a machine we had open.
I just test fit them and relised that I should have moved the bolt holes a bit lower then the ones I bought. So i am gonna take them back to work and slot them down so I cam move the header up and down. ( I made them only .020clearence anyways so it wont matter much.
I didnt clean them up yet so they still have layout blue and burrs on them.
PS w00t 1000 posts hahah
Jay
So I ordered some 3/8 cold-rolled steel from work (18 bucks for both) and last night I was super bored so decided to cut them on a machine we had open.
I just test fit them and relised that I should have moved the bolt holes a bit lower then the ones I bought. So i am gonna take them back to work and slot them down so I cam move the header up and down. ( I made them only .020clearence anyways so it wont matter much.
I didnt clean them up yet so they still have layout blue and burrs on them.
PS w00t 1000 posts hahah
Jay
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Car: 1989 IROC Camaro
Engine: Stealth Ram 355
Transmission: WC T-5
Axle/Gears: Torsion 3.42 Posi
Re: 87 Iroc LT1 Single Turbo Build
Great looking project you have, are you thinking about having the exhaust ceramic coated.....
#36
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Re: 87 Iroc LT1 Single Turbo Build
Jay
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Re: 87 Iroc LT1 Single Turbo Build
I'm in envy though..Been wanting a turbo car every since I was a scared passenger in my friend's father 86 GN. The first time I felt it peel the gator backs at 35, I was in love.. Better than sex with the prom gueen...You have my gears turning, keep us posted....
Did not realize that LT1 had that kind of hood clearence....
Did not realize that LT1 had that kind of hood clearence....
Last edited by Iroczracer; 03-30-2009 at 06:54 AM.
#38
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Re: 87 Iroc LT1 Single Turbo Build
very cool looking, keep up the good work. should run like a beast.
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Car: 1987 Z28
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Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well I finished off my Dual 255 pump setup, ready to drop it in the tank and start running some lines!
From factory this is how it was feed.
3/8- Feed
3/8 -Vent
5/16-Return
5/16-Evap
I modified it like this.
3/8-Feed (kept)
3/8-Vent (turned this into the second pump Feed)
5/16-Return- I turned into a Vent ( i cut off the return section in the tank as mentioned below.
5/16-EVAP-Drilled this out for room for a 3/8 return
I also had to cut the stock 5/16 return in the tank and take out about a 1 inch gap so I could use this a my vent. So after cutting this off the entire assembly way very flimsy so I welded 2 supports to the feed tube.
Not bad for about 1 hour or so of work!
Jay
From factory this is how it was feed.
3/8- Feed
3/8 -Vent
5/16-Return
5/16-Evap
I modified it like this.
3/8-Feed (kept)
3/8-Vent (turned this into the second pump Feed)
5/16-Return- I turned into a Vent ( i cut off the return section in the tank as mentioned below.
5/16-EVAP-Drilled this out for room for a 3/8 return
I also had to cut the stock 5/16 return in the tank and take out about a 1 inch gap so I could use this a my vent. So after cutting this off the entire assembly way very flimsy so I welded 2 supports to the feed tube.
Not bad for about 1 hour or so of work!
Jay
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Car: 86 berlinetta 92rs gfx
Engine: 4 bolt 384 stroker
Transmission: th350 4000 stall manual/T brake
Axle/Gears: 87 iroc 9 bolt
Re: 87 Iroc LT1 Single Turbo Build
nice, is 5/16 gonna be enough of a return? i know they always say to run a bigger return then the feed on theturboforums, (exp -8 feed -10 return.)
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Re: 87 Iroc LT1 Single Turbo Build
Jay
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Re: 87 Iroc LT1 Single Turbo Build
Went to a truck place my buddy works at and got my V-band for the turbo DP, and while I was there decided to run 4inch DP necked to 3.5 around 18inches downstream! So he also got me a 4inch 45* and a 4-3.5 reducer, all for cheaper then the V-band would have cost me in the states at NAPA.
So tonight on break at work I am gonna get all my DP stuff ready and weld it tomorrow! Also maybe make a braket to mount the turbo to the accesorry bracket!
Jay
DP stuff
Fuel lines
Passenger header started
So tonight on break at work I am gonna get all my DP stuff ready and weld it tomorrow! Also maybe make a braket to mount the turbo to the accesorry bracket!
Jay
DP stuff
Fuel lines
Passenger header started
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Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
More work done, I have one more primary to weld on the passenger header, then add the o2s and fire her up!
Also started the DP
Jay
Also started the DP
Jay
#48
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Well got a bunch of **** today....
Only waiting on my 4 inch K&N and my header wrap!
All my 3 inch cold piping, 2 1600CFM fans, 3.5 V-band, 2.5 V-band, o2 bung etc.
Also picked up some 3.5inch Tbolt clamps for the stock elbow!
Should be done this week!
Only waiting on my 4 inch K&N and my header wrap!
All my 3 inch cold piping, 2 1600CFM fans, 3.5 V-band, 2.5 V-band, o2 bung etc.
Also picked up some 3.5inch Tbolt clamps for the stock elbow!
Should be done this week!
#50
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Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: 87 Iroc LT1 Single Turbo Build
Jay