Ok, 93 base model here. I've got an upgraded clutch, pettit ECU AND Power FC still in the box w/ commander, Walbro pump, full 3" exhaust to HKS Hi-Power cat-back, Border Racing Front mount, Griffin 3 row radiator, hmmm prob more. Soooo... This is my question:

I have 2 sets of twins. Both of the rear turbos have cracks either at the wastegate port and a crack on the exhaust housing. These are basically junk, to me. So now I am debating. Find a really good set of twins or even a BNR stage 3 setup. OR GO BIG. I am thinking of a single kit. There are so many options right now I can't decide. I have been looking at the Borg Warner S362. I am also thinking Garrett GT35R or GT40R. I DO want great spool-up, but I would also like to hit 550-600 rwhp in the end. What do you guys suggest? And don't say "SEARCH", I have been doing that for 4 years now.

 

Well you failed at searching cause this question comes up every couple weeks.

 

A few threads to look over:

https://www.rx7club.com/single-turbo-rx-7s-23/hta-gt35r-vs-pt6765-900667/
https://www.rx7club.com/showthread.p...ghlight=600whp
https://www.rx7club.com/showthread.p...ghlight=600whp
https://www.rx7club.com/showthread.p...ghlight=600whp
https://www.rx7club.com/showthread.p...ghlight=600whp

Now, read over these threads:

https://www.rx7club.com/single-turbo-rx-7s-23/turbo-comparison-2025-turbosmart-garrett-g-series-869614/
https://www.rx7club.com/single-turbo-rx-7s-23/how-size-matters-compressor-map-illiterate-zero-r-472529/

And you'll be able to read compressor maps and decide on required flow for your HP goals on your own.