The Mafia

when does the boost start and finish in each gear? What size is the ex housing?

so you think that there is something wrong with the exhaust? Paulr33 said earlier that this could be a problem, and it is on my list of things to do in checking it out. But Paul seemed to think that the exhaust was stopping the power goning any higher than what it is...maybe it's causing the lag? So you do agree that there is definately a problem that needs to be fixed that isn't the turbo? I mean, come on, 4500rpm for 15psi in third? The turbo can't be THAT bad of a mix. There is definately something fishy going on... And its PISSING ME OFF. An RB20 with a T88 would be more responsive than this POS. heh.. sorry, its making me cranky. I hate lag, thats why I installed a .63 housing..... I highly doubt the intake is causing a restriction - I've got a Pod filter connected to a Q41 90mm AFM, and 4 inch all the way to the bell mouth. Then I think its 2.5 or 3 inch Apexi plumbing all the way through a 600x300x75 FMIC, and all the way to the standard throttle body. Maybe my cat is f**ked? Or maybe blocked? The exhaust is that fantastic Split front pipe, in a 3 inch cat, 3.5 inch through a straight through muffler, and 4 inch though a cannon....WTF.... Guessing, the weakest links could be that cat, might be blocked from all the toluene or something, or it could be that muffler somehow. Next thing I will check is to see of the Wastegate flapper is creeping, if it isn't, Powerfc boost control kit. Then I want to get a Water Methanol setup and put 17psi through it, advance timing and 95 ron fuel. Maybe that will stop pre ignition enough to get some decent power out of it. After the water meth goes in, I will probably go to either townsville or Mercury motor sports to get it tuned properly. If all that fails, I am going to get a rum bottle, some rag, and put some of that awesome 95 ron fuel in it, light it and smash it through the windscreen.

I've been thinking a little more simplistically for a second. Think about this - Coming on boost , there shouldn't be much pressure to blow open the wastegate flapper because the car isn't on boost yet, creating flow with would create lots of gas in the exhaist manifold. So really, when everyone else says the exhaust housing is too small too much pressure in the ehaust manifold etc etc, then it should be coming onto boost like REALLY early and overboosting etc, maybe even causing damage, and being really "tired" or reluctant up top due to the exhaust housing being small creating a restriction? But Up top, it pulls its hardest. Like really hard. Much better than V8's kind of top end power. I mean think about it, its a .63 housing and its almost 5000rpm to make 15psi in 2nd 4500rpm to make 15psi in third bit over 4000rpm to make boost in 4th. What the hell is going on... Its a tiny housing... It should be making boost so bloody early its not funny. Surley having a TO4S 7 blade wheel and .7 comp cover wouldn't make that much lag?

sold and gone

dude, you're an absolute legend... I owe you something cronic.

hehhe are you drunk?

hhmm... Just thinking, I have a few ideas to try and make this a little better. First I am gonig to install a spring on the wastegate flap to try and create a bit more tention, to see if its blowing open. Second, I am going to do what I have been meaning to do for a while and get a better boost controller than a bleed valve - The powerFC boost control kit. My mate set up the Link boost control kit and his boost was hitting way harder, and much better and earlier. You could even hear the turbo work a lot harder. The exhaust housing: Do you all think I should get the garrett equavilent .63 internal gate housing, or go a step bigger and get the .86 internal garret housing? I'm a little confused. Will the specs of the turbo help? I'm going to get them and post them up

lol www.google.com.au www.skylinesaustralia.com/forums --- > search

that would be the most wicked thing... Building a motor and seeing it start for the first time. Good luck mate, hope you work it out

or you can get a custom one made up like my mate made me....

hehehe I got the same thing, but for $19 so there...

ok...so if that is the case...whats your suggestion? Go a bigger exhaust housing?

hehe mine "broke" too...

Got a mechanic to do mine - 168psi to 169psi accross all cylinders. 1996 Series II with 92,000 genuine kms on it.

well, the car drives ok...its very laggy. Doesn't come on hard until 4000rpm, which I am not impressed about. Its a Stock sized ex housing for hells sake! I don't really know. Car pulls A LOT harder up top, as the dyno figure shows 460nm of torque or about that. I don't have the chart because the tuner reckons his printer is buggered. I think his whole set up including him is buggered....

well, I have a heap of logs that you can analyse. All recorded in datalogit, and easy as Open FC-Datalogit Window Mapwatch File-> Open Select one of the log files Log_20051219_1747.txt Log_20051219_1752.txt Log_20051219_1756.txt Log_20051219_1757.txt Log_20051219_1758.txt Log_20051219_1759.txt Log_20051219_1801.txt Log_20051219_1805.txt

I am still running the stock regulator.

all of this on a stock bottom end? I'm running 14psi.. Tuner says there is a big difference between 14 and 19 psi, and like 50rwkw worth, but there is also a difference in the bottom end staying together and going bang... Got me scared...

The support is shithouse. I can't believe that they just don't reply to anyone that tried to get a little bit of support. I'm getting pissed off.

So what your saying is your injectors are tuned to inject less because you have better fuel that is less prone to detonation, and I am having to inject much more fuel to stop detonation? So there is nothing I can do, but run better fuel? Do you run the same boost as me? Are you able to post up your mods? THis is very interesting. Well, I love guns, Futurama, The Simpsons, and I'm seeing a very hot asian chick.. I think we'd get on very well...hehe

The Link ECU has a system where if the knock is too high, it will reduce the boost level until the knock is reduced. The Link ECU uses the factory boost controller to control boost up to 14psi.. COuld be more, not sure though.

yeah, I'd be looking into the dodgey friends category. f**ken seen heaps of that lately, and If I do notice people with dodgey friends, I make sure they don't know what I have got and where I live. Trust me man, the guys are probably closer than you think.

well, I'm afraid to say, he's the only decent safe tuner in mackay.... The other mob who I won't mention, have a bad habit of blowing motors to pieces...

yeah I know what you mean. Its got a nice curve, but mine just isn't making that power the whole way

so what do you suggest cubes? New tuner? lol