***Pics of new turbo***Spec my Comp Billet 80mm Turbo!
08-29-2012, 08:55 PM
#21
Personally, you shoudln't buy into the hype of the larger turbo spooling faster because it's a billet wheel and ball bearing. Tit for tat a journal bearing turbo and ball bearing unit of the same design spool almost, if not, identically. The gains are in the transient boost response (off idle or in between shifts on a manual). Since you're auto, I don't know that you'll see the return on your investment.
Yes, I'm new here but I've been running large frame Borg Warners on much smaller motors for the past 6 years. I love me some BW snails and hope to transition to this platform within the next month or so.
The larger the cubes, the more likely a given turbine wheel will choke flow. You've got a good 40 cubes less than the build you're referencing so you might be in the clear for that turbine wheel.
There's really no reason to reinvent the wheel here. There are countless threads on here of people having success with tried and true combos. Typically when a person gets stuck on getting the most bang for the buck/newest technology they wind up being the test mule and realizing they could've had a lot more fun taking a well beaten path.
Martin, spec me a cam (via PM if you'd like) for a stock LY6 with VVT delete, LS3 intake manifold, TB is up in the air with a T6 1.32 AR S480 with the 92-96mm turbine. You rock!
Yes, I'm new here but I've been running large frame Borg Warners on much smaller motors for the past 6 years. I love me some BW snails and hope to transition to this platform within the next month or so.
The larger the cubes, the more likely a given turbine wheel will choke flow. You've got a good 40 cubes less than the build you're referencing so you might be in the clear for that turbine wheel.
There's really no reason to reinvent the wheel here. There are countless threads on here of people having success with tried and true combos. Typically when a person gets stuck on getting the most bang for the buck/newest technology they wind up being the test mule and realizing they could've had a lot more fun taking a well beaten path.
Martin, spec me a cam (via PM if you'd like) for a stock LY6 with VVT delete, LS3 intake manifold, TB is up in the air with a T6 1.32 AR S480 with the 92-96mm turbine. You rock!
08-29-2012, 09:07 PM
#22
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I know it's much smaller (my motor), but i also know that guys run cast pt88's on 370's all the time. Shouldn't it spool better since it has the billet wheel and it's ball-bearing. Comp said they also have the ability to go with the gt50 wheel instead of the gt55 style wheel. They said the can also put the borg warner 96/88 wheel on that's used in the s480's. If i stay with the 80mm compressor, what turbine wheel would you ask for...the borg 94/88 or the gt50? If i keep the 80mm compressor i want it to be able to carry up top too...to atleast 7000rpm! The motor can handle it just fine.
08-30-2012, 07:32 PM
#27
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with my borg warner t4 1.25 devided 87mm turbine 80mm compressor w/ race cover i was able to go 151mph at 3275 around 20psi but i think you should go to a bigger compressor wheel then a 80
08-30-2012, 11:05 PM
#28
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80mm billet flows more than cast BW 80. I don't get why they don't make a 43 housing. Just too lazy to write a new CNC program I guess. I think a CT43 billet 8094 T6 would be a great street set up. GL Dee
08-31-2012, 12:57 AM
#29
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I thought long and hard about going with a bigger compressor but decided i'd stick with the billet 80mm since it flows so much! The thing flows 133lbs...more than enough for my goals for somewhere near 1000rwhp. I wanted my combo to remain somewhat street friendly since that's where it will spend most of it's time. I went with the gt50 wheel because it is bigger than the 96/88 borg wheel, spools just as fast and will help my combo rev to the moon like i want it to. Dr. Turbo has said in other threads that the gt50 flows so well that with a 1.08ar, it has equal flow to the borg warner 96/88 turbine that guys run on s480's with the 1.32 ar! So, with Comp's crazy flowing billet wheel, it was a no brainer to choose the bigger gt50 type wheel that has the same charactoristics as the borg turbine but flows a ton more air. Is it safe to assume that with a 1.08ar housing, it should spool quicker than the s480 w/ 1.32ar, yet carry the power just as long since it can flow the same with the tighter 1.08ar? Or does it not work that way? I would imagine that it would be able to carry the power even more if i used the gt50 with a 1.32ar, with less bp, which would allow the turbo to spool even more with less restriction/bp??? I think this turbo is gonna be sick on in my combo!
08-31-2012, 09:01 AM
#31
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I have no idea how much boost it will take. I'm running a th400 trans. I do know that i will not go over 20psi...i would like to keep it around 17-18psi~ if i can. My combos weakest link is the stock crank and 4bolt heads. I'm not gonna be unhappy if it doesn't make the number but i hope it will come close. I'm hoping that the tfs 235's, fast lsxrt and vtc 3 cam will shine together. Hell, i'll be happy with 900 and change through that th400 and stall. One thing is for sure, i'm not gonna be chasing a number and blow my motor trying to do it. I'll go 20lbs max, see what it does, and then keep it around 18psi after.
08-31-2012, 09:10 AM
#32
I thought long and hard about going with a bigger compressor but decided i'd stick with the billet 80mm since it flows so much! The thing flows 133lbs...more than enough for my goals for somewhere near 1000rwhp. I wanted my combo to remain somewhat street friendly since that's where it will spend most of it's time. I went with the gt50 wheel because it is bigger than the 96/88 borg wheel, spools just as fast and will help my combo rev to the moon like i want it to. Dr. Turbo has said in other threads that the gt50 flows so well that with a 1.08ar, it has equal flow to the borg warner 96/88 turbine that guys run on s480's with the 1.32 ar! So, with Comp's crazy flowing billet wheel, it was a no brainer to choose the bigger gt50 type wheel that has the same charactoristics as the borg turbine but flows a ton more air. Is it safe to assume that with a 1.08ar housing, it should spool quicker than the s480 w/ 1.32ar, yet carry the power just as long since it can flow the same with the tighter 1.08ar? Or does it not work that way? I would imagine that it would be able to carry the power even more if i used the gt50 with a 1.32ar, with less bp, which would allow the turbo to spool even more with less restriction/bp??? I think this turbo is gonna be sick on in my combo!
1st, yes the gt50 turbine is awesome, but that is the True gt50 turbine. What you getting is a cut down tv turbine cut to the same basic size as a gt50. It will flow maybe what a true gt47 turbine flows. I mean look at the 111mm lookalike gt55 turbine. 2:1 backpressure with that size turbine wheel and low boost is way off. 2nd unless its a gtx 80 mm wheel it will flow max of around 125 to 130.
08-31-2012, 09:10 AM
#33
the bigger gt50 type wheel that has the same charactoristics as the borg turbine but flows a ton more air. Is it safe to assume that with a 1.08ar housing, it should spool quicker than the s480 w/ 1.32ar, yet carry the power just as long since it can flow the same with the tighter 1.08ar?
08-31-2012, 09:14 AM
#34
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You need more compressor I also have a stock crank and 4 bolt heads. I've ran my 80 to 25psi. With my new 88 I'm guessing ill need 20 psi to make 1k wheel also threw a th400.
09-12-2012, 10:31 PM
#36
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Got my turbo today! Specs for compressor are 80mm ind./118 exd., Turbine is 100mm ind./ 89mm exd., housing is t6 1.08ar. We'll see how she does in a few months!
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09-14-2012, 06:27 AM
#38
How much should i sell my Comp 80/79 CT5 for lol cus it sounds like its not gonna work for me either.. I was half tempted to stay the course and run my ct5 but id hate to only make like 700 whp when my goal was 900-1000.. (built lq4) ... DAMN always somethin
