GT45 GOOD for rear mount?
Your piping is way to big IMO. Esp with a rear mount. Spool-up will be horrible. I'd run 2" piping from each manifold to a 2" Y close to the motor. Then run 2" piping all the way back to the turbo flange. It's not an NA motor, don't treat it like one.
For what it's worth, I'm running the On3 76mm Ball Bearing Turbo. Unfortunately I just found a torn silicone connector between my charge pipe and intercooler, so I won't know the results in spool until I get that replaced. Should be a few days...
Collect both of the 2.5" pipes into a single 2.5" to feed the turbo. The exhaust system is barely 2 months old so I want to utilize as much old piping as possible.
From what I've been reading, 2 inch will support up to about 800rwhp comfortably. 2.5 will support 1000-1100. Is that about right?
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From what I've been reading, 2 inch will support up to about 800rwhp comfortably. 2.5 will support 1000-1100. Is that about right?
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From what I've been reading, 2 inch will support up to about 800rwhp comfortably. 2.5 will support 1000-1100. Is that about right?
Generally when talking about cross over piping
2.5" will support 2400hp
2.25" will support 1800hp
2" would support 1000hp.
With a rear mount you'll have a greater length and more bends so those numbers will drop slightly.
Or so they say....
https://ls1tech.com/forums/forced-in...er-pipe-6.html
I went with a small exhaust housing/wheel and 2.5" piping because I didn't know any better. My "spool-up" is garbage compared to what it should be...






