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By joshuaho96 · Posted
PAR specifically offers stock ratios in their gearset and you could do whatever ratios are physically possible supposedly for no extra cost. I agree 6 ratios is better than 5, the factory 2nd gear is equivalent to the Getrag 2nd gear if you account for the differing final drive ratio though. The Getrag 3rd gear with a 3.916 final drive is equivalent to a 1.6 2nd gear in the FS5R30A. I'm about to swap the transmission out on my car, I'm tempted to send the one I have now out for rebuild with the standard "cross ratio" gearsets out there to see if it really makes such a big difference the next time I pull the transmission. -
This is what I was looking at next: https://www.z1motorsports.com/engines/tomei/tomei-rb26-28l-short-block-assemblies-p-45479.html as we can’t bore the cylinders out in hk so better just buy the whole lot in one and install then retune. Everyone saying the weak link are the bolts holding the rods together. I already did valve springs, arp head bolts, hks racing coils, nismo fuel pumps and pressure regulators, injectors etc for the top of the engine. -
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By joshuaho96 · Posted
IMO I would stop there but it's up to you. At the power numbers you're asking about the stock 05U block will start showing issues. Even an N1 block might not be enough. PRP is trying to do blocks and heads that will be ready for big power right out of the gate but it remains to be seen whether any of that is any good. It might be great. It might be awful. It's hard to say until enough people have gotten their hands on one and run it for extended periods. -
My whp was 418whp and 518hp crank on 98 octane fuel. So decent numbers.
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