Quote:
Originally Posted by II HUFF II
Thanks I guess for the extremely indignant but partially helpful post. Can you run say 15 psi boost on a 10:1 CR or do you HAVE to lower it?
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first of psi means nothing. you could run 15 psi off of a gt28 on a b18c1 with that cr with proper tuning and make like around 290-300whp. but if you tried 15 psi with lets say a gt35r, you'd be looking for a new motor. my point is 15 psi from one turbo isn't the same from another. bigger turbos move more air and spool slower. but make more power per lb of boost with the right tuning. if you're shooting for 400whp and want your shit to last. drop that CR to atleast 9:1. you could run crazy psi on 10:1 with the right internals and a tune but it won't run on pump gas.
my point is that if you're gonna fully build both motors to withand 400whp reliably then the gsr is a complete waste of money. you're gonna spend atleast 1500 dollars more for the gsr to only rip everything out of it. that's just pointless. if you're gonna build your motor for n/a power then yes go with the gsr. but if you're gonna build for 400whp boosted b-series then go with the b18b. that 1500 dollars can be spent on a nice set of internals and install etc. just cause the gsr starts off with 20 more whp doesn't mean anything at all