Which t6 turbo for lq4
Full boost will be between 13-15psi.
Cam timing is critical in a turbo set-up. Mainly evo.
It would spool faster with an 83mm turbine vs that 96mm turbine and make the same power if you're only planning on 15psi no matter what the EVO is. Quick spool at the cost of a little top end power is usually worth it on a relatively low hp mostly street car (600-700whp) but in that case, 15psi on a 5.3, it doesn't require that much turbine anyway.
It would spool faster with an 83mm turbine vs that 96mm turbine and make the same power if you're only planning on 15psi no matter what the EVO is. Quick spool at the cost of a little top end power is usually worth it on a relatively low hp mostly street car (600-700whp) but in that case, 15psi on a 5.3, it doesn't require that much turbine anyway.
May as well buy once.
I do agree with you that with a smaller cam the 83mm would spool the same or faster, but I know with the right cam the 96mm will act exactly the same. You're introducing the same amount of exhaust gas into the 83mm turbine with a smaller cam as you are with a bigger cam with proper evo and a 96mm turbine.
The only reason im on the fence is the cost between the two. Im on work leave due to a foot injury and dont have money coming in for quite some time, and an extra 400.00 at this point for a little bigger turbo seems like a lot... But if u think itll be worth it to wait a bit and save up for the bigger turbo then ill go that route. Otherwise im gonna go with the cheap and smaller ebay turbo. But the more and more i think about it, its way smarter to do it right the first time. But since im also on the stock bottom end, i wont be boosting past 14 psi..if this is the case, would that ebay gt45 be more than capable with a max boost of 14psi?
I built 2 f bodies for my buddies
4.8 ls9 cam s472 83wheel 1.10 t6 t56 1psi by 2600 full spool by 3200 10psi for now
Ls1 383 blower cam s480 96mm wheel 1.32 t6 t56 makes 1 psi at 2350rpm and full spool 15psi by 3500 for now need more meth...
You can easily make the 1.32 96 wheel work but most people wanna pull stumps (full spool 1000rpms)
4.8 ls9 cam s472 83wheel 1.10 t6 t56 1psi by 2600 full spool by 3200 10psi for now
Ls1 383 blower cam s480 96mm wheel 1.32 t6 t56 makes 1 psi at 2350rpm and full spool 15psi by 3500 for now need more meth...
You can easily make the 1.32 96 wheel work but most people wanna pull stumps (full spool 1000rpms)
And I bet that blower cam has a lot more exhaust duration and a tighter lsa than what one would normally "think" is right for a turbo car.
But when we are trying to spool a bigger hotside that tighter lsa and more exhaust duration is needed.
But when we are trying to spool a bigger hotside that tighter lsa and more exhaust duration is needed.
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