turbo build
07-19-2010, 07:19 PM
#1
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turbo build i am considering doing a turbo build this coming winter. i want to keep the ls1, and i would like to run close to the 9s even a 9.999 lol. i know i need forged pistons and rods, do you think the stock crank will hold up or not? The car already has or will have a good rearend, trans and suspension. i guess what i want to know is engine details like compression, heads,cam and so on... also what turbo setup would you recommend.
07-19-2010, 07:30 PM
#2
The stock cranks have seen 1000hp, so no worries there. As far as compression goes you will want to stay in the 9.0-9.5 range. Are you going to run pump gas plus meth or E85? The heads will depend on your budget, but you will want some with thick decks. The AFR's are hard to beat if sticking with a 4 bolt.
For a cam the Speed Inc TU1 will work very well. Not much benefit to going to a custom grind for what you are doing. Dont forget a good converter. As far as turbo setups are concerned, a front mount would be a easy choice and josh over at kentucky turbo could steer you in the right direction. A truck manifold kit with a TC78 or bigger would rock on what you are building.
For a cam the Speed Inc TU1 will work very well. Not much benefit to going to a custom grind for what you are doing. Dont forget a good converter. As far as turbo setups are concerned, a front mount would be a easy choice and josh over at kentucky turbo could steer you in the right direction. A truck manifold kit with a TC78 or bigger would rock on what you are building.
07-19-2010, 07:34 PM
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ok awesome, i plan on running pump gas so far. i have emailed josh already lol. what if any are the benifits for doing a build with headers? i love the way they look. i will also have head studs, idk if afr heads will fit in the budget any other idea's?
how close to the 9s do you think i can get?
how close to the 9s do you think i can get?
07-20-2010, 12:39 AM
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If a budget is a concern you could make your own kit using stock truck manifolds flipped/ebay intercooler/ebay coldside parts/Master Power T76/T78 if doing it right im sure 9's shouldnt be a problem......
G/l....
G/l....
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07-20-2010, 10:23 AM
#9
i would get a set of 317s to help combat knock on pump gas. the only advantage of having turbo headers is the ability to have AC and you wont have to move your Alternator. the disadvantages are they are prone to cracking, they bleed alot of heat if they arent coated, and they COST. the cheapest set i have found are from Spooling performance. they are almost 1200. truck manifolds will get you deep into the 8s so why wouldnt you do it? plus you can get a set for about 100 bucks and go. if you're looking at a KYTP kit you will spend more than 5 grand but that includes it all pretty much.
07-20-2010, 07:36 PM
#10
Lets clarify something. "Some" turbo headers crack. If you are using a T-304 material, cracking shouldn't be an issue even on a street application with lots of heat cycling. Stainless steel has natural insulating properties as well so, they don't bleed heat that badly. Some people wrap them and swear by it, while most racers do not. The reason probably lies in the fact that wrapping does little for spooling, but alot for underhood temps, ie denser charge, thus the seat of the pants dyno takes note.
Last edited by 355TurboLT1; 07-20-2010 at 08:54 PM.
07-20-2010, 09:01 PM
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good info guys! truck manifolds work for me then, i have just heard a few people say they spool slower than headers. im a boost noob so you guys are helping alot. i am thinking stock crank, forged rods and pistons, ported 317 heads and a fi cam, prolly just run stock compression given the 317 heads will lower it some. ok so next question is what intake? will my ls6 intake work?
07-20-2010, 09:04 PM
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how does this sound? '
i have a truck manifold turbo kit that i built for a buddy. he decided at the last minute to go nitrous instead and now i have this in my garage. here are the specs
-2.5" Mandrel bent mild steel 16 gauge
-T4 flange
-1.75" wastegate dump
-driver side 3" mild steel down pipe starter
-O2 bungs
-all TIG welded
this kit should keep the radiator in the stock l0cation with a small frame T4 turbo (i.e MPT70, MPT76, TC76/78, PTE76, etc.) I am asking 850 shipped to the 48
i have a truck manifold turbo kit that i built for a buddy. he decided at the last minute to go nitrous instead and now i have this in my garage. here are the specs
-2.5" Mandrel bent mild steel 16 gauge
-T4 flange
-1.75" wastegate dump
-driver side 3" mild steel down pipe starter
-O2 bungs
-all TIG welded
this kit should keep the radiator in the stock l0cation with a small frame T4 turbo (i.e MPT70, MPT76, TC76/78, PTE76, etc.) I am asking 850 shipped to the 48
07-20-2010, 09:11 PM
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just my .02
07-20-2010, 09:25 PM
#14
how does this sound? '
i have a truck manifold turbo kit that i built for a buddy. he decided at the last minute to go nitrous instead and now i have this in my garage. here are the specs
-2.5" Mandrel bent mild steel 16 gauge
-T4 flange
-1.75" wastegate dump
-driver side 3" mild steel down pipe starter
-O2 bungs
-all TIG welded
this kit should keep the radiator in the stock l0cation with a small frame T4 turbo (i.e MPT70, MPT76, TC76/78, PTE76, etc.) I am asking 850 shipped to the 48
i have a truck manifold turbo kit that i built for a buddy. he decided at the last minute to go nitrous instead and now i have this in my garage. here are the specs
-2.5" Mandrel bent mild steel 16 gauge
-T4 flange
-1.75" wastegate dump
-driver side 3" mild steel down pipe starter
-O2 bungs
-all TIG welded
this kit should keep the radiator in the stock l0cation with a small frame T4 turbo (i.e MPT70, MPT76, TC76/78, PTE76, etc.) I am asking 850 shipped to the 48
i think that sounds like a great idea! lol. whoever said truck manifolds spool slower probably havent been in a turbo V8. you wont be able to tell a difference in spool really and you will make big power with the right turbo and combo
as far as intake, the LS6 will do just fine. i regret selling my ported FAST 92, but now i have a Victor Jr topend and i love it. people have make north of 700 hp with the LS6.
07-20-2010, 09:55 PM
#17
man no one but you can build that parts list. it just goes on and on. for starters......
A2A intercooler
cold side piping kit
blow off valve
wastegate
lots of vacuum tubing and fittings
at least a walbro (duals recommended)
boost referenced fuel pressure regulator
larger injectors 60s seem to work well in most setups
2 or 3 bar MAP
catchcan
now it's all the little parts that are going to bite you in the ***. fittings, clamps, tubing, bolts, etc all add up.
just shoot me a pm when you're ready and i will get the parts together. I'm building two now and one is already sold. the other one has your name on it
A2A intercooler
cold side piping kit
blow off valve
wastegate
lots of vacuum tubing and fittings
at least a walbro (duals recommended)
boost referenced fuel pressure regulator
larger injectors 60s seem to work well in most setups
2 or 3 bar MAP
catchcan
now it's all the little parts that are going to bite you in the ***. fittings, clamps, tubing, bolts, etc all add up.
just shoot me a pm when you're ready and i will get the parts together. I'm building two now and one is already sold. the other one has your name on it