Gareth87

Hi, I drive a 910 bluebird with a standard solid axle rear end in it but use s13 coilovers and strut braces etc. It handles well but could be better. A common mod is converting to a R30 independant rear end. Im keen to do this but i heard the camber is fixed. Is there any way to give the rear end some camber? a few degrees negative. Thanks, G

A little update, i pressure tested the system again yesterday while i had some time and it wasnt costing shit loads sitting on a dyno. The external gate is leaking big time out between the shaft and where it goes up into the head of the gate. I rang turbo smart and they said its a worn valve guide leaking boost. I can only assume this is causing my problem of boost coming on slow. They said the 48mm progate which is what i run is outdated and may be hard to repair. Man i was pissed off, its got less than 10ks on it and its not even a track car! bullshit. Anyway, assuming that when i repair the gate, the boost should come on earlier again, its now down to why did it do 2 runs low on power and why #4 plug is fouling? Still need to try the above options when i get time. The gate cant be fixed until mid Jan, when they get back from holiday anyway. G

hey guys, Thats not a bad idea with measureing the heat of the runners, have to go back to the dyno though. I might get the injectors checked as if #4 is a bit dodgy, then it may be leaking at idle or something. I thought the plenum would favour cyl 4 however, its curved around feeding the air in there. Also, with a turb like a 3040, it should have enough CFM of air flowing through that plenum to keep up with the cylinder. But im very open to the opinions here because it was only my guess. I also built myself a pressure tester today to pressurise the inlet system and i've definately got a leak in the gate somewhere. Air is pissing out from between where the valve shaft goes up into the head of the gate. That was only with about 12psi showing on the boost gauge. I'm guessing thats not normal hey?? would that cause a slow spool up? Im still stumped why it would run 25HP down for 3 runs until i cleaned the plugs and the HP came back... (thanks guilt-toy, ill flick some pics over!) G

The plenum design i felt worked a lot better when i was making a lot less power, i used to get fairly even plugs then, however, I'm 22 now and built that plenum myself when i was 16, I was learning just how a turbo system works then, so i couldnt even have guessed it would be making 400HP a few years later. The rear end is a 10 bolt series 3 TRX disc rear with a detroit locker centre and 4:11s. The trailing arms are welded and plated so touch wood, its not too bad so far. I run a Wolf ECU V4. So definately not the best thing in the world. Will running that cylinder so rich become a problem? i have been told a resistance check of the leads may show something up as well. G

Hi everyone, Ive got a strange set of problems that i would like some opinions on so i will explain in as much detail as possible. My FJ20 was tuned over 2 years ago after it was built and it made 395HP at 17psi. A few weeks ago i took it back to the dyno to give it another power pull just to be sure everything was sweet. As i rocked up to the dyno, i put a new set of plugs in it just because it hadn't had plugs for 2 years. Anyway it made 394HP so everything was fine and i was satisfied. I took it to the drags 2 weeks ago and on the first pass it felt like what was a fuel surge just before the line so i shut off and rolled over. I was concerned that i had hurt the engine so i did 1 more pass short shifting a little earlier and still did the same MPH, this time without the fuel surge so i figured everything was ok. Paranoid, i took it back to the dyno to do another pull to make sure everything was all alright. The first run it only made 375HP followed by 370HP on the second pull. Boost was also coming on later by about 500rpm but holding 17psi when it came on. We figured something was wrong so did a comp test straight away on the dyno which came out with all cylinders between 185-190. Satisfied with that, Next we put a pressure tester on the front of the turbo and pressurised the system, the only thing that we could hear leaking was what was sounding like the inside of the external gate. Strange.. While the plugs were out, we inspected them which showed that 1,2,3 were fairly even, but 4 was very rich. (possible plenum design, see photo below) Anyway, so we cleaned them and got straight into the power pull. The first run, boost came on super late, by over 1000rpm and then went on to pull 395HP again, followed by a backup run at 391HP. I pulled the plugs again and number 4 was definately rich still, but the power was back. I have no idea why this has all happened and i know its a hell of a story, but if anyone has any ideas i would like to know. The only additional thing i can think of is that it was stalled backing onto the dyno and flooded, and took a while to get it started. Perhaps fouling a plug? but i dont know. So to recap. Boost on late - hissing noise in external gate. (turbosmart pro gate 48mm) Power down but picked up with clean plugs. 1 rich plug - wondering if plenum design isn't very good. Flooded before initial runs, could the plug have fouled causing lack of power? Best pics i have of plenum Thanks for the input, G

The owner of this car is a good mate of mine and ive moved overseas now but i drive a 400HP bluebird. Before he went to town on the engine i had the pleasure to go for a drive in this car and i thought there wouldn't be too many skylines that would impress me after driving my own car. - however this thing is a weapon and i wish i had the money to take it off his hands. I just want to post this up as i know first hand how much effort has gone into this car and stupid amounts of money. The person who buys it will love it, that im sure of. Gareth