What size turbo...
12-13-2014, 02:35 AM
#21
Burning Brakes
Pretty obvious to know back pressure will be a problem if you put a single T4 on a 400+ cube LSX, anyone can tell you that. Does not matter how many Boosted LSX's I put togeather. If you have nothing to say or give him advice STFU. 
-Curtis
-Curtis
Last edited by C6 Curtis; 12-13-2014 at 02:44 AM.
12-13-2014, 10:37 AM
#22
Burning Brakes
Yes, as Danzglass said, it was a twin setup so your hot side diameter will be larger. Cool single Danzglass!!
I think tracy is talking piping on his twin rear mount. So piping size wont be the same as your single. I have a manifold to 2.5 off the manifold into a single 3 in hot side. wrapped the whole way back. # in aluminum piping back up to the intercooler. My 5.3 lights of my pt7675 .96 damn fast and makes well over 900whp planning on well over 1000whp soon. On a 408 Idk on piping size as thats a lot more motor. But i would think it could support it. But you need more turbo. I think talking to John Bewley at little john motorsports is your best bet. I think a s484 with the new 410 cover would make every bit of 1200whp on a 408 with fast spool.
12-13-2014, 11:54 AM
#23
Drifting
Exactly what I thought... No real knowledge... Share some logs of back pressure ratios with a t4 or any results you've personally had with a turbo lsx. Oh wait you have nothing... I know the op personally and if you see my comments I told him to go with a t6. Build something worth mentioning then you can tell me to stfu until then sit down little buddy.
Last edited by Dude_man; 12-13-2014 at 12:57 PM.
12-13-2014, 02:07 PM
#24
Burning Brakes
Thread Starter
Exactly what I thought... No real knowledge... Share some logs of back pressure ratios with a t4 or any results you've personally had with a turbo lsx. Oh wait you have nothing... I know the op personally and if you see my comments I told him to go with a t6. Build something worth mentioning then you can tell me to stfu until then sit down little buddy.
I will say there are many who say T6 is the way to go. Then again, that's all it is. People "saying". I prefer to get some input from someone who has done a similar setup, or at least something relevant to show how back pressure and spool were affected on a big cube motor by using different Hot side AR and or T4,T5 or T6 designs.
I know there are a few single rear builds on here. Hopefully they chime in.
There is a local guy with a Supra that is willing to sell his recently freshened Garrett GT4788 T6 for a fair price. My fabricator admits that it will work, but wouldn't be his first pick.
12-13-2014, 07:16 PM
#25
Burning Brakes
Exactly what I thought... No real knowledge... Share some logs of back pressure ratios with a t4 or any results you've personally had with a turbo lsx. Oh wait you have nothing... I know the op personally and if you see my comments I told him to go with a t6. Build something worth mentioning then you can tell me to stfu until then sit down little buddy.
Im not going to go tit for tat with you I sent you a PM.
-Curtis
Last edited by C6 Curtis; 12-13-2014 at 07:19 PM.
12-13-2014, 07:59 PM
#26
Drifting
You're like a whinny *** girl, can't read, get emotional, message me then complain when I reply... Wahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhh
12-13-2014, 09:08 PM
#27
Burning Brakes
Thread Starter
Curtis, what setup have you run with a T4, or T6 in a high CI V8? I'm curious to know your experience, hence the thread...
I am not looking for guys just repeating what they may have heard but have no actually proof or data.
Anyway...
Any other guys running singles on a 408 that want to chime in. Keep in mind this car isn't only about "the number". I don't want the car to be a pig on the street at low RPMs. I've seen data and Dynos of cars running. 408/88mm T6 of over 1100rwhp. But if I can make due with a smaller one that makes 1000rwhp with better throttle response....I'd go for that.
That guy with the supra wants to sell his to get a smaller turbo...
Car makes 1350rwhp which is more than what he wants, and is a school bus on the street, anything below 5K...
I don't want that.
12-23-2014, 05:53 PM
#28
Racer
I'm running a single on a 408. Its a billet 84/96 on a bw s400 frame with a t6 1.54 back side. I don't have any experience with a rear setup, but if I had to guess I would say you have a much larger pre turbo exhaust so keeping the pipe diameter tight as well as the exhaust ar, is probably crucial, especially on a manual.
12-23-2014, 06:22 PM
#29
Burning Brakes
Thread Starter
I'm running a single on a 408. Its a billet 84/96 on a bw s400 frame with a t6 1.54 back side. I don't have any experience with a rear setup, but if I had to guess I would say you have a much larger pre turbo exhaust so keeping the pipe diameter tight as well as the exhaust ar, is probably crucial, especially on a manual.
12-23-2014, 07:16 PM
#31
Drifting
12-23-2014, 07:49 PM
#33
Drifting