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On 98 I don't think the smaller units will get close. The median figure I have seem for an SS2 on a reliable roller dyno is 270, hence why I think a G3 is a good option for someone intent on getting closer to 300 with minimal mods/98.

i have been looking at the hyper gear stuff :D i want to try and keep my stock manifold but later down the track when i want to chase the power i will do a full build :D thanks for every ones help

Eh?

Most if not all the Hypergear stuff uses the stock manifold.

That's also kind of the reason it's become so popular. most of his really good stuff will bolt up to stock everything, and is in the power level where a stock engine internal is considered 'safe'. Its simple, 'easy', bolts right on, works well, looks inconspicuous and in terms of response vs power is really in the sweet spot for a usable yet powerful engine for a RB25DET

GT3582 is considerably not there, its of the area where you need ideally a forged engine, different manifolds, more displacement to find that balance between lag and power.

  • 2 weeks later...

I love my gt35 with a. 63 rear housing on my 25 neo 20psi all by 3750 makes 374rwkw on 20psi with fuel supply issue. Once fuel issue is fixed retune time and was pulling well past 7k rpm ;) feels so much better then my old 25 with a kando t67 which was laggier

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