scotty nm35

What if JEM's dyno reads higher and they simply don't like tuning road cars that close to the limit? As you say, without both cars on the same dyno at the same time there are too many variables. Even strapping the cars down hard hurts performance on the rollers. I don't think Trents dyno is overly happy, perhaps within 10kw of everyone elses at that power, which isn't bad for a hubber. Stao was having all sorts of issues getting a decent power output with the stock mani, once he changed it really opened up the top end, no matter the turbo.

Cleaning the throttle will only make it worse, make sure there are no vac leaks (the PCV hose is a common culprit) and no engine lights as it doesn't set the idle with an error present. Change the transfer case fluid too.

You are doing it all wrong...

Both the ffp and aftermarket exhaust manifold will see you defected instantly the minute the bonnet is popped, why not lean on the stock gear as much as possible, you will get to your goal and still look stock if you choose parts correctly.

It hasn't got much to do with the oil pump, more the oil feed line to the turbo as the ball bearing cores usually have restrictors inline. VQ's run fairly high oil pressure too. Yep, see what happens at idle and let him know the result, I imagine the turbo was installed with all the same parts so perhaps the oil feed fitting on the turbo still has the small hole to act as a restrictor? You might need to get it drilled out. Hopefully there is no long term damage to the turbo yet.

I might have a Tial spring here if you need the 1 bar spring. PM me about it. So is it time for a name change if you don't have GTX goodness anymore?

It's reaching the limits of the stock exhaust manifold... On 98 at least... Not that you would notice 20kw less.

Beware, the booster hose has a one way valve inline that will need to be installed into the new hose, otherwise your brake booster won't always work.

Preload, these need a lot.

Is it coming from the drivers seat? Perhaps the trans is low on oil, centre tailshaft bearing is shot, or wheel bearing from the hektic camber yo?

So there is probably over 400kw in it, I would be getting some Bosch 1000's and winding the boost up. Do you have an adjustable fuel reg? The Walbro e85 pump flows fairly well at higher pressure, you may be able to bump it up a fair bit and still flow enough fuel at the top end, depending on what boost you run. I think the 1000's flow well over 1500cc at 80psi, and at under $600 for the GTR kit they are pretty good value, especially if you can sell off the 800's.

As e85 requires approximately 30% more fuel for the same power you will be up over 90% before you even wind up the wick... I would be getting 1000's at least. How much power are you chasing? Perhaps you could get away with bumping up the fuel pressure a little? But that will lower the pump's flow at the same time.

Yep, drop the drain hose to the sump and check the oil supply, try and measure what flows in a set time period so you can let Stao know. The filter is to clean the oil so the ball bearings last longer. If he has put a bushed core in it probably isn't required, but it won't hurt, unless it gets blocked...

That's pretty late for one bar, what power did you end up making? At the end of the day if you are happy with the lag, go for it. The top end should be awesome. Most guys stop leaning on their setup once the power climbs which means they would be better off with smaller turbo's running harder. I feel the 200kw by 4k rule to be fairly accurate, and gives a good indication of how the car responds.

The boosters are fairly robust, but the seal around the master cylinder shaft might be leaking, or the brittle vac hose may have split?

Sounds like the old booster was leaking, why was it changed? You will need to get a retune now the leak is fixed if that's the case.

PM'd.

Damn, I am busy tomorrow, and it's too far to drive without e85 pumps at Wadonga and Goulburn. Hurry up United... I have some Sydney Stagea's to run...

It's just a banjo mate, you can shove any bolt in there can't you?

There is no carbon buildup with e85... I would be finding a local fabricator who specialises in custom stainless performance exhausts, it's just a pipe after all. Make sure there are flex joints in it if there are no others in the system. The merge is the critical part, you don't want a 90 degree merge, you want it as tight and smooth as possible. If they don't purge the inside with argon, get inside there with a die grinder and clean the welds up before fitting. If you are relying on a pair of race cats to quieten your exhaust you have problems. Large mufflers are what drop decibels noticeably, and most Ti systems lack decent mufflers because they have a weight penalty.

What kills a turbo quickly, and can seize the shaft almost instantly is a lack of oil supply, and as your oil supply is custom made for a BB core it may be insufficient. Ball bearing turbo's require only a little oil, at lower pressure, while the bush core I assume you have now will need a higher unrestricted flow. Do you know if there is a restrictor in the oil line? The easiest way to check the turbo is getting enough oil flow is to drop the drain hose off the bottom of the turbo and run a hose to a jar or similar, measuring the oil flow in a minute or so. Ask Stao for an approximate flow level. He is generally very helpful when it comes to fixing issues, you should discuss it with him first I think. There is no chance you could bugger the tolerances to produce that much lag, there would have to be 1/2 an inch gap between the turbine and it's housing. If the turbo is now bush cored, the shaft will have a little in-out movement, and side to side. The oil is what centres the shaft, it should never touch the bush.

So what was the splodge of silicone supposed to do? Hold the water line in place?

Is he that ugly? Or privacy issues...

Thanks. I saw the shop was open Today as I drove past, have you booked it in yet? Must be quite a line of cars for him to catch up on. No problem, drop in anytime and explain what you want made. I have some good ideas on it already.

Got pics? It's been a hard day, I need a giggle...