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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 12-19-2010, 02:02 PM   #1
shinobis13hb
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Originally Posted by KaminaSan View Post
This. I drove the SR with stock SMIC, and you can't get much more recircd than that. It didn't feel all that much different.
what setup are you running now?? spec exhaust ect ect.
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Old 12-20-2010, 03:51 PM   #2
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Originally Posted by shinobis13hb View Post
what setup are you running now?? spec exhaust ect ect.
Well, first off, I got mine done at PG like you, and so here are the things I did.

My upgrades so far:
1.)Reset the Mine's ECU that came with the clip back to the stock tune.
2.)Walbro 255 lph
3.)FMIC(CX racing with knockoff Greddy Type S)
4.)Circuit Sports turbo elbow
5.)3 inch downpipe
6.)Circuit Sports Test Pipe(Not much louder)
7.) 2.5 inch catback(custom made from previous owner, gonna get a real exhaust soon)

I set my idle to 850, and my BoV isn't very tight(so I only get a tiny amount of compressor surge when I'm at like 1/2 psi and let off too slow).

In second, I'll hit full boost 8 psi(washer on my turbo), and then let off, pshhh blowoff, rpms go down from 3600, then it goes to about 450 at the lowest, then shoots right back up to 850.

Yeah, it's not how i'd LIKE it, but it doesn't bother me too much.
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someone in the car is screaming when that deadly t25 spools up!
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Old 12-20-2010, 04:39 PM   #3
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Quote:
Originally Posted by KaminaSan View Post
Well, first off, I got mine done at PG like you, and so here are the things I did.

My upgrades so far:
1.)Reset the Mine's ECU that came with the clip back to the stock tune.
2.)Walbro 255 lph
3.)FMIC(CX racing with knockoff Greddy Type S)
4.)Circuit Sports turbo elbow
5.)3 inch downpipe
6.)Circuit Sports Test Pipe(Not much louder)
7.) 2.5 inch catback(custom made from previous owner, gonna get a real exhaust soon)

I set my idle to 850, and my BoV isn't very tight(so I only get a tiny amount of compressor surge when I'm at like 1/2 psi and let off too slow).

In second, I'll hit full boost 8 psi(washer on my turbo), and then let off, pshhh blowoff, rpms go down from 3600, then it goes to about 450 at the lowest, then shoots right back up to 850.

Yeah, it's not how i'd LIKE it, but it doesn't bother me too much.
well thing to concider is possibly that your BOV is leaking? my old ssqv was leaking. what was your mines ecu tuned for? are you sure it was damaging your motor? i know rather be safe then sorry so im not saying you shouldnt have gotten it reset ahahah.that exhaust system should help you out a bit! my car currently has.
blitz tuned ecu.
apexi intake kit.(need to replace the cone)
3" turbo elbow
3"JDM downpipe
SMIC
hks ssqv3
full exhaust with 2 resnators and 3 "magnaflow muffler.
my car is pretty quiet and it sounds bad ass!
set at 10LBS
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Old 12-20-2010, 05:01 PM   #4
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Quote:
Originally Posted by shinobis13hb View Post
well thing to concider is possibly that your BOV is leaking? my old ssqv was leaking. what was your mines ecu tuned for? are you sure it was damaging your motor? i know rather be safe then sorry so im not saying you shouldnt have gotten it reset ahahah.that exhaust system should help you out a bit! my car currently has.
blitz tuned ecu.
apexi intake kit.(need to replace the cone)
3" turbo elbow
3"JDM downpipe
SMIC
hks ssqv3
full exhaust with 2 resnators and 3 "magnaflow muffler.
my car is pretty quiet and it sounds bad ass!
set at 10LBS
My BoV leaking would be under boost, which it holds boost just fine. It would be stuttering if it was leaking. I don't know if you saw some of the other threads about Japanese tuned ECUs, but most of the threads were posted in by people who actually DO tune ecus, and they were saying that the ignition advance is pretty crazy, and that it's fine on cars with high octane levels, but on california piss 91 octane, it will lead to detonation, pre-det=bearing stress.
http://zilvia.net/f/engine-tech/352940-mines-ecu.html
Mine's Inquiry Form

I can tell you it caused problems with my engine, because I replaced my oil pan about two months ago, no metal or anything in the pan.

I started to run the car a bit harder, and noticed it would stutter a bit after 4k rpms, did an oil change about three weeks ago, to find gold sparkles in my oil. Luckily its still running, but I'm assuming there was some damage done to my bearings, which sucks since I just bought this motor, and will probably have to rebuild it.

Be careful with that blitz ECU.
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Old 12-20-2010, 05:11 PM   #5
shinobis13hb
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Quote:
Originally Posted by KaminaSan View Post
My BoV leaking would be under boost, which it holds boost just fine. It would be stuttering if it was leaking. I don't know if you saw some of the other threads about Japanese tuned ECUs, but most of the threads were posted in by people who actually DO tune ecus, and they were saying that the ignition advance is pretty crazy, and that it's fine on cars with high octane levels, but on california piss 91 octane, it will lead to detonation, pre-det=bearing stress.
http://zilvia.net/f/engine-tech/352940-mines-ecu.html
Mine's Inquiry Form

I can tell you it caused problems with my engine, because I replaced my oil pan about two months ago, no metal or anything in the pan.

I started to run the car a bit harder, and noticed it would stutter a bit after 4k rpms, did an oil change about three weeks ago, to find gold sparkles in my oil. Luckily its still running, but I'm assuming there was some damage done to my bearings, which sucks since I just bought this motor, and will probably have to rebuild it.

Be careful with that blitz ECU.
hmm i see i cna understand your concern .. we did spend good money on our swaps. well an update i guess, after xmas i am going to be getting a FMIC when i do i am going to get my car dynod with wideband ect.. i get a GREAT deal at a place by my house its called J&G auto the guy tunes and knows all about rotory. when i changed my oil i inspected it and i didnt see any bad signs of wear or metal. oil didnt look bad. allthough i think my lifters need to be bled.

i dont know but my sr is pretty fucking tits. i stay side by side with my buddys s14 w rb25. he gets me on the stop but on a roll im side by side. but i am going to get my car retuned with diffrent injectors and a maf in about 6 month aswell as a turbo..? i jsut have to finish some other things and pay for some tickets.
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