meet07

i get full boost at like 40% throttle. the q45 tb is a plus to have.

RB25det series 1 -freddy intake manifold -stock turbo -stock block -aftermarket intake and filter -12psi -walbro fuel pump -fmic and plumbing -stock dp -3" jvtr exhaust -apexi safc -q45 tb put down 267whp and 233tq

I realized after the fact that im not suppose to mess with the tb. Well now I cant get my idle right. right at start up it hunts and them after it warms up a little pit it a little bit better but the process under the DIY section isnt helping me.

Im having a similar problem but I messed with my q45 throttle body. And now I cant get my idle right or my tps. Thats what I get for messing with it. It was fine before. and this procedure isnt doing me any good......

what happens if you remove the aac valve and adjust the idle with the tb.. Freind of mine with a ca18 removed his b/c his custom intake manifold was fitted for one? cause me personally, I hate the aac valve

I have a rb25det S1 in a 240 with q45 tb and freddy intake manifold. I messed with the tb screw a while back and just read that I wasnt suppose to mess with throttle body. Is it suppose to be closed?? Every time i mess with my idle I cant get it right. In order for me to crank the car I have to hit the gas pedal like a carb. When I disconnect the tb plug, adjust the idle and then plug the tb back up the car drop idle. can I adjust the idle with the car warmed up?? I cleaned out the aav like 6 months ago. How often does it need to be done??

I saw under the dyno section that 250whp can be made with this turbo and supporting mods. Can some one give me a lil info on this conversion..... Thanks

I got that same manifold. Its been fine for me since last october. Mine came from a diffrent company. I want to say that I got mine for like 350 or so...off ebay.

maybe the cold fuel spraying into the combustion chamber would lower the cylinder wall temps....maybe a lil.

when is this needed?? When there is a sign of leakage??

Mine is the same as murrayis. my motor came over to the states with 89km on her. Never changed the oil pump.

yeah I always thought about that. I would think they would with the cheaper manifolds that are made out of 304 and 321 Sus. There already crack with the turbo heat....then you talking about trapping the heat more. I think it is possible.

every now and then I see rb25 with basic mods making over 225kw(301 hp) What is the secret?? Do you have to advance the timing at the CAS or something.

like someone said above the timing and the cam adjustment.

Im located here in the usa. Of coarse we dont have any skylines but swaping the infinity j30 vlsd's into 240sx are common. Whould this work with the j30 lsd??

I did mine in my back yard. I just took everything off and let it fall. taped off all the openings until its time to put it all back together. ill be flushing the coolant system and adding the necessary oil.

^^^yeah what he said.

I had an xspower 38 mill on 2 diffrent turbo vehicles. Havnt failed me yet. I Have a 44 that I will be using next.

I agree with Wolverine......mine does the same thing. ended up being the pvc valve. Pinch it under idle and see if the hissing changes.

I knew that I should have kept that to myself.

I bought a ebc from japan off ebay of coarse. And I have to say that it works great. Look up D2 power.

found the problem.... comes to find out that when I went to relocate my safc that I pulled just a lil to hard. At the end of the wires is a plug. Well the plug goes inside the safc and plugs into some computer board inside the afc. I had to seperate it in order to plug it back in. Plus my plugs where fouled out from the none maf voltage. cleaned plugs and reinstalled. All good. Oh yeah. I noticed that everyone says that the rb25's run rich. Well I have huge throttle body and freddy intake so I subtracted 2% from 5500 rpms to 7 grand. She pulled like a champ

Nah. All my settings on the safc where the same after reconnecting the battry. The power wire,blk and brn wires broke off but I soldered those back. Everything is still the same. I pulled code 12(MAf) once. Could not get it to pop up again. I als code code 55. I read here http://www.northwestnissans.com/board/showthread.php?t=26965 that this means all ok. When I get home today I guess ill check over all wiring with the maf,tb, and safc

What about limp mode?? I noticed anouther cat on NICOclub had the same issue. Never told what it was or if he fixed it but it is the doing the exact thing. Would this happen if im throwing a code?? Im sure that I wired the check engine light into the cluster but not really sure how to check codes.

ok here we go. Today it was nice so I decided to work on my car. 1st I wanted to diagnose why my horn wasnt working. Ends up being that the relay is bad. 2nd I wanted to bondo my fenders. Thought that I didnt have any hardner so I skipped that task(later found the hardner) 3rd Heat shrink the power wire that enters the engine bay and joins together with the upper and lower engine harness. 4th relocated my s-afc with the extended ash tray thing that I found at the junk yard. So after all was done I decided to crank her up. Noticed that the throttle and afm wasnt reading anything. Both read 0. So I started to jiggle a few wired and nothing. went over to the throttle body and unpluged it and the car dies. Normally the revs increase a lil bit but not cut off. Then I went over to the maf and unpluged it. Nothing happened. Now during this whole thing I noticed a lil smoke coming out the tail pipe(just a little bit) So I placed a rag over the maf sensor and nothing changed. I know there is something wrong here but then again why is the maf and throttle not reading on the safc??? When I peg the throttle the engine does like a delayed 2 step and the turbo builds boost. I guess somehow the timing is retarding causing this effect. Does anyone have any ideas?? I drove the car for the past 3-4 months with no problems. I mean everything I did this afternoon was minor stuff. Any advice would be greatly appreciated. Mods: -1989 240sx -rb25det -safc -boost controller 12psi -3 inch exhaust with cat delete -freddy intake manifold -q45 throttle body -fmic with RFL bov -aftermarket radiator with slim fans (2 fans)