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building motor help needed

dee242

By dee242,
in R Series (R30, R31, R32, R33, R34)

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  • 9 months later...
dee242 Enthusiast

dee242

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So i got the car tuned it made 363 @7450rpm and 18lbs of boost on 94 octane  and 411whp on meth at 24 psi but boost began to fall off after 7700 rpm due to a cracked manifold i believe.  I am currently reving to 8000rpm and will post dyno sheets shortly after i get a new manifold installed and final numbers.

dee242 Enthusiast

dee242

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11 hours ago, Ben C34 said:

Looks like that will  crack too. That's what the cheap stainless manifolds do. They crack.

Ive got a friend running the same one and it's held up for him so far this is only temporary tho i will either be getting a custom one made or mod this one for twin gates if it doesnt crack

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