One man's tale of a LS1 turbo build
- Thread starter Eagle
- Start date
will not be much fun then.
Didn't I say a 91mm many pages ago? hahaha
hmmmm t6 having less back pressure and spooling quicker than a t4? No way. Can't be. (Can you detect the sarcasm? lol) The logic that people can determine a turbos performance based on a t4 flange versus a t6 flange is amazing being the lack of MANY other variables. Especially since the area difference between the two is not that much. The turbine wheel size, vane pitch, turbine housing size, A/R, out let diameter and such are big factors as to how a turbo will perform. I am by no means an expert. But I understand many thing about these things. Enough to know they are important as well. haha
The problem with using the PT88 now and changing to the t6 version later, besides the $1850 into the turbo, is most likely the cross over and down pipe will have to be done over. So spending money over again to the tune of how much? You see what I mean.
Again, I am NOT really trying to convince you on doing a t6 turbo. Just making you look at all the options. Now and in the future.
I guess that ALL t6 turbos use a 5" DP too... which will be a challenge as well space wise. But then I guess I could upgrade turbos later and not have to change the DP.
Jose said that I would "like" the T6 housing on the PT88... but said I won't really use it unless I'm pushing the turbo to the point where it fails to make more power.
Still kinda at a loss.
Jose said that I would "like" the T6 housing on the PT88... but said I won't really use it unless I'm pushing the turbo to the point where it fails to make more power.
Still kinda at a loss.
I guess that ALL t6 turbos use a 5" DP too... which will be a challenge as well space wise.
Jose said that I would "like" the T6 housing on the PT88... but said I won't really use it unless I'm pushing the turbo to the point where it fails to make more power.
Still kinda at a loss.
Let Brandon and I take care of "decisions" at the track and you will push that mofo pretty hard. haha
I have no doubt a 5" down pipe will be tough to make work. It may be able to be done depending on a few factors. You can get creative with oval tubing, splitting the 5" to a dual 3.5" and so on. A factory K member will not help for sure. You can also down size to a 4". Not ideal but being it is not a race car you are limited on options.
What size DP are you planning on running with the PT88? At least a 4" I hope.
You had issues last year. That is what held you back. If things went smooth I have no doubt in my mind that you would have thrown more boost at it. When it is as easy as putting some good gas in the tank, change to the boost controller and tweaking the tune you will eventually want to throw more at it. No matter what turbo is on the car. haha
You didn't answer me about the trans brake. lol
And have you looked into a new bottom end for next winter? Never to early to plan ahead.
Yea, I used to do that to a buddy of mine. Constantly spending on his build... trying to get him in the right direction. This was before I had the coin to spend myself. 
Now he's done spending and its my turn. I sure as hell don't have $2500 to toss at a short block right now or this T6 Q might be more of a no-brainer. If I pop the engine this season she's gonna be down and out till next spring most likely.
Now he's done spending and its my turn. I sure as hell don't have $2500 to toss at a short block right now or this T6 Q might be more of a no-brainer. If I pop the engine this season she's gonna be down and out till next spring most likely.
T
Typhoon
Guest
That is not true. They may have a 5" discharge, but that does not mean you have to put a 5" down pipe on it. Also you maybe interested to know Fireball(on LS1tech) made 1700hp (crank) on a 4" DP.
T
Typhoon
Guest
Are billet wheels that important? I don't see the gains of one, but I don't have that much knowledge on turbo's either
A PT88 flows 125 lbs/min. That turbo brandon posted up does 132 lbs/min with a compressor 6mm smaller (82mm). You be the judge.
Eagle will run 9's, PR will run 8's on a 17" DR.Cars are too damn fast now, my turbo'd gtp's would run the streets (lol i love that saying) back in 2003-2004. An 11sec car was FLYIN' now both of you have actual street cars running single digits
jezus
Well, you get older, and people have more money for toys. 11s is still flying if you are 17yrs old and working at pizza hut.
T
Typhoon
Guest
Ive heard that too. Although this compressor map keeps poping up (On the turboforums & yellowbullet).
From searching around Ive seen that PT88 quoted as flowing anywhere from 120 to 130 lbs/min (Even by people who claim a map doesnt exist). That would make that compressor map pretty close. I am by no means a turbo expert either. This is just info Ive picked up here and there. If anyone knows different. Please share.
Also here's a post I came across on the bullet.
Hope this helps.
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