Got a few questions for my rb25det..
My goal is to push 4xx whp on my rb25det. I just got her and I've done compression test and each cylinder read exactly 150 , 3 tests and cold engine. Timing belt looks new & tight.
Previous owner told me he put new plugs , that was false i put new ACDelco RpdFire Plat/Spark Plug's and gapped to .8mm. Drained oil saw no metal shavings, flushed out engine and put Mobil Synthetic S 10W 40. Flushed out transmission fluid and filled up with Redline MT-90. I have a Q45 differential which i believe has 3.60 gearing, i also replaced fuild with Royal Purple. Axles are q45 previous owner said upgrading to 300zx ones would be better? True/false? .
So my drive train is pretty solid as it should be. I'm pushing 11psi w/ greddy boost controller & aem wideband air/fuel ratio showing pretty good results, and runs like a champ.
Engine is bone stock minus greddy intake manifold, q45 throttle body i believe, fmic, hks bov.
I've been reading up the holset hx35 turbo is a pretty good cheap upgrade and bolton but gotta do modification to header manifold but thats where i lack skills. Who carry's a affordable and reliable header mani for rb25 w/ t3 hookup?
I know i need to upgrade fuel, I'm think e85 but gotta do my research on that and sounds costy even tho its cheaper then 93 pump gas here in texas.. But as of right now im sticking to pump gas, I was hoping to purchase some bigger side feed injectors i know i've read up they suck but as of right now i want most bang for my $$. Otherwise buy a top fuel rail $300 + injectors $1200 = $1500 plus i still need a tune..
So my main questions are
Who carry a affordable & reliable header manifold?
Should i upgrade my q45 axles to 300zx ones?
What stand alone system is good and affordable?
With the header + hx35 + bigger injectors + boost up'd w/ tune make at least 4xxhp? I've tired looking up build threads but people have money unlike me..
I'm open to all suggestions and ideas!
Including suspension (Already have megan coils) everything else stock..
The previous owner also told me car has q45 brakes & rear brakes but no ebrake and missing a wheel lock so unable to remove rims to inspect.