Jump to content
SAU Community

Need Hellp On Rb25det


Recommended Posts

Hi there this is my firest time here in your site

and i like it really

so guys i have my skyline and i need some hellp frome you

it is 1995 gtst with rb25det and the mods on it with previous oner is

1. t70 turbocharger and ext waste gate

2. front mont intercoller i think its original GTR ones

3. 3 inc exh with rear muffler

4. walbro fuel pump

5. sard fyel regulator

6. filter pod

7. apexi safc2

8. turbo timer

i need to know how much boost i can go with it becouse naw it reads 5psi and its not fare for RB *_* and if any one can expect how much hp i will gain?

finally is it good for my gt or should i replace the turbo with stock one and run for 1 bar?

and thnx for all

Link to comment
Share on other sites

a t70 with external gate... you could be running MUCH more than 5psi...

where are you reading 5psi? do you have an aftermaket boost gauge?

if youre reading that supossed figure from the stock boost gauge, its not actually measuring in psi...

Link to comment
Share on other sites

hi

msp yes i had read it frome aftermarket boost gauge and thats why it`s amayzing

brother so if it not how much boost i can run if you where in my place?

and really guy`s i am planing to replace it with the factory one because it can`t spool quick it is after 3000 start to cick me ^__* hhhh but i belive theres a problm and for that i will use my original rb turbo untill i porchase new westgate becouse it seems to be that is from thiland parts you know them guy`s not quality ones and meby its been dameged or stucked otherwise if any one got idea just hellp me

Link to comment
Share on other sites

book your car to get tuned on a dyno mate. Theyll figure everything out for you.

i would do the same.....but my mate had a problem on this line before......the place where he got it dynoed put the boost controller back to front....and he was reading 5psi stock turbo......once a dyno diagnostics was done they found the problem and he had a 4 psi boost gain....before the diagnostics he was making 148 rwkw and now after this litle problem he is making 198rwkw.....i wouldnt really rip off the aftermarket Garett T70 turbz and stick a stock turbo on.....i am sure that taking it to the right people will make all the difference.....

Link to comment
Share on other sites

thnx guys but really i found other poorly things he exhust manifold was made even from bad metal and it gets warm too much and the down paipe and full exhust frome sam material

and worsty thing that in the back before the cat back theres some titened in the pipe you can say like from 3 inc pipe to 1inc OHH GOD and i think this is one of reasons

by the way one of my friends he got gt with rb25det and he got almost the same items

he run 1 bar on the t70 :D and then hhhh i started to cry :( so guys i have make many things

i will change all the exhust pipe and the manifold and i will read the boost after that if it less i will increas it until i got 1 bar even i will make changes to the SAFC2 to get more fulle on top RPMs after that i will dino it so see you guys after all that staff and thnx for rep

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share



  • Similar Content

  • Latest Posts

    • Brand new r34 gtt box 
    • What is the go to gearbox these days for a RWD RB? Back in the day VG TT boxes were cheap and strong. Seems they are as expensive as an RB25 box these days. What are the options without remortgaging the house? 
    • Define "Nissan big brakes". You just mean standard R34 4 pots? And...it's not even the offset you need to worry about. It's really a detail of how much clearance there is between the caliper and the back of the spoke/face, which is affected more by the design of the spoke than it is by the offset. If you think about it....take any wheel, say a 19x8 that does fit and clears the caliper. Then add or subtract an inch of wheel on the outside, without changing anything else. You have changed the offset by half an inch, but not changed the clearance situation at all. Same for if you add or subtract an inch from the inside edge. The way for you to work this out is to take a wheel off the car, grab a straight edge and a ruler or two, and start to measure the distances from the wheel mounting face on the hub to the outer face of the caliper, and the outer diameter (that faces the barrel of the wheel) of the caliper. Armed with these dimensions and any other measurement that grabs your fancy while you are there, you can then go to the seller of the wheels and do the reverse measurements from the wheel's mounting face and see if there will be clearance to the caliper. There really should be. I have 17x8 RPF1s +35 clearing the caliper face by a finger tip. Those wheels do have pretty thin spokes with some curvature.... but then so do most wheels to suit Jap cars.
    • So I’ve got a r34 sedan that I managed to get green stickered, meaning I need to go through government approved wof station for my car to be allowed back on the road for some reason my car is certed for 19x8 rims.. I need these wheels  does anyone know what offset will be fine to clear Nissan big brakes? I saw 35et for sale near me, I can’t drive the car to test fit or risk being fined ..   I searched heaps online couldn’t find anywhere..
    • Okay, with all that being said about sloppy blowing from twins, I happily acknowledge the superiority of a single turbo setup on the RB; however, I still plan on double trouble.  I know the -9s were quite popular for some time because they seemed to meet that sweet spot between the -7s and 5s, would introducing VCAM and/or stroking to 2.8L provide the additional displacement/flow to push twins closer to the 500-600 goal?  Does it make more sense for a daily to just do an engine overhaul, slap some -7s on it and enjoy a bit more reliable power?  Has anyone driven a mine's overhauled and tuned engine?  I know they certainly don't approach the power numbers that you drag monsters do down under, but for daily street usage, I just want it to be fun and healthy.
×
×
  • Create New...