RB25DET build slowly but surely

[Just_Chris]

I've owned my 1990 r32 gtst for over 7 years and have been adding miscellaneous parts for the past 4 years. I've thought about building my rb20det, selling it, or just buying a separate rb25det and build it from the ground up. So finally i made the decision and purchased a rb25det My plans for this build is to make a reliable 400-500 whp toy to drive on the weekends. Once I figure out out to post pictures, ill fill in the details

[Just_Chris]

Here is my ride, purdy and blue.


Mishimoto oil cooler
Mishimoto rad
Mishimoto oil catch can
Mishimoto dual electric fans
Greddy trust intercooler
Split fire coil packs
HKS EVC 6
AEM oil temp, water temp, oil pressure, boost gauge, Wide band O2 sensor
3'' down pipe and straight pipe
Greddy oil filter relocation kit
AMS rear Upper control arms
AMS sub Frame collars
Tein HA coil over
Tension rods/tie rods
AMS front upper control arms
NGR aluminum lug nuts (never given a key for those bad boys :/)
HKS pod filter
255 fuel pump (can't remember brand)
KDW-2 tires front and rear
MOMO shifter knob and Ebrake
Corbeau Racing seats
Auto Meter Tach and shift light
Mines ECU

I think thats about everything worth mentioning.....

[Just_Chris]

OK off to a good start, now for the new engine




So far on at this point I have ACL bearings, ARP bolts, cometic head gasket, Micro polished crank and balanced. And missing one cam gear cover

[Just_Chris]

Next a couple of bolt ons.....







Picked up a new forward facing plenum, 80mm throttle body and fuel rail.

[Just_Chris]

One more little goodie, a top mount mani. It is t3 flange since i was going for a holset, but things change.. will be changing to a t4

[Just_Chris]

Now heres the reason for the T3 to T4 change.... Last pick for a while though, Hope everyone enjoys!!!

[topher589]

What size is the bw ? I bought a s363 for my rb25 neo !
Nice build , you will love the rb25 for sure !

[Just_Chris]

It's a custom 60 mm trim

[Just_Chris]

It looks like I have a few more goodies on the way, so I'll post the goodies as soon as I can, I hope u guys enjoy!

[Supraclean]

Please ditch that crappy quality exhaust manifold man. Its going to give you nothinf but issues.

Trust me in this one, a 6boost manifold will actually make good use of that turbo you have and not crack.

[Just_Chris]

I'll be running that mani for a season or 2 until I eventually buy a 6 boost, in the mean time It will do the job.

[nimblestix]

I know a few guys running cheap ebay manifolds on rb25's for years without issue. If it cracks weld it. They cost around $200-$400 to your door, as opposed to $1300+ for a 6 boost. You made the right choice. Glad to see you went with the BW!

good luck with the build.

(not saying your wrong supraclean, just saying this manifold will be fine for use.)

[Just_Chris]

[Just_Chris]

[gtrjon]

im a little torn on the issue of a quality vs ebay manifold. I have seen the ebay manifolds that are dirt cheap hold up at 600whp and 25psi for years without issue. but then again on the other hand I went threw 3 in one season on my honda a few years ago. they didn't just crack but one even cracked all around the waste gate flange and the entire flange broke off. I really think its a crap shoot whether you get lucky or not. But at the cost its definitely worth the gamble if a 6boost or better isn't in the budget