Hello fella's. What's new since i've been away???

[Chris \'aka rustboy\' Amm]

wow i been gone AGES! what the hell has been going on! apart from me waiting for the days to end on my 56 days ban and my moderator stuff being listed because well i aint been about to know why so guess that's why

[TRD 2000GT]

Hi Mark,

Congrats on the power, that certainly throws that theory out the window...

Do you have an adjustable fuel regulator ?

[Mark Edwards]

Hi Mark,

Congrats on the power, that certainly throws that theory out the window...

Do you have an adjustable fuel regulator ?

No mate, stock regulator and rail, but a walbro 255lph pump.

[TRD 2000GT]

Ah right fair enough.

Whats the best way to find out if the pump i have is standard or not ??

Cheers

Andy

[Mark Edwards]

Ah right fair enough.

Whats the best way to find out if the pump i have is standard or not ??

Cheers

Andy

Take it out and look is the only way i would know, but there must be a way of testing the flow somehow.

[BenF]

I remember reading that HKS and TRD head gaskets are one in the same. May explain why there are HKS parts in there.

Enis, I don't know if that's true - over here, when I did my top end rebuild HKS did 1.6mm HGs, TRD did 1.2 and 1.4mm HGs - I went for the 1.6mm stopper HKS HG on the car which i hear is still working well

[ENSMR2]

I remember reading that HKS and TRD head gaskets are one in the same. May explain why there are HKS parts in there.

Enis, I don't know if that's true - over here, when I did my top end rebuild HKS did 1.6mm HGs, TRD did 1.2 and 1.4mm HGs - I went for the 1.6mm stopper HKS HG on the car which i hear is still working well

Well I did say may be. Come to think of it I am pretty sure it was onimoc I read it. Maybe the old site or hear, unsure.

Shows you shouldn't believe everything you read/hear. I found many examples of this recently (nothing to do with this).

N

[MR2Mania]

I remember reading that HKS and TRD head gaskets are one in the same. May explain why there are HKS parts in there.

Enis, I don't know if that's true - over here, when I did my top end rebuild HKS did 1.6mm HGs, TRD did 1.2 and 1.4mm HGs - I went for the 1.6mm stopper HKS HG on the car which i hear is still working well

Well I did say may be. Come to think of it I am pretty sure it was onimoc I read it. Maybe the old site or hear, unsure.

Shows you shouldn't believe everything you read/hear. I found many examples of this recently (nothing to do with this).

N

No mate, what you probably heard is that the TRD HGs are in fact TTE items. Also, bear in mind this info came from the US. And did you know that TRD US and TRD Japan are different people, and sell different products?

[MR2Mania]

Ah right fair enough.

Whats the best way to find out if the pump i have is standard or not ??

Cheers

Andy

Andy, I've got a better way to check the pump, as long as you can run a decent amount of boost!

If it's being checked on a dyno, all they have to do is fit a fuel pressure gauge somewhere in the pressurised part of the fuel line.

Basically, fuel pressure goes up with boost. For every 1psi of boost, you SHOULD get an extra 1psi of fuel rail pressure. I say "should" because the stock pump really doesn't do too well above 17psi of boost.

So, what a dyno place could do is check the base fuel pressure (by pulling the fuel pressure regulator (FPR) hose off so that it seems atmospheric pressure whilst the engine is running), then raise the boost to 17psi or above and see if the fuel rail pressure is 17psi above the base (from the top of my head, base pressure should be 33-39psi).

Essentially, if you get to a point where the fuel rail pressure starts dropping off when under boost, it means you have a stock pump in there. It also means that the engine could have never produced much more than about 330-350bhp (not safely, anyway!).

With regards to checking your FPR to see if it's standard, the standard item is on the fuel rail. Aftermarket ones will tend to be mounted somewhere else, and will have some form of adjustable screw on them. An FPR generally looks like a little cylinder, however they vary massively in size, shape, colour, etc. You either know how to check for one, or you don't.

Good luck!

[MR2Mania]

Incidentally, Andy, what boost is she running? Also, what turbo does she have on?

[TRD 2000GT]

Definately sounds like she has a standard fuel pump in there then.

It's running 1bar boost at the moment and when put above that it doesn't make a blind bit of difference.

What confuses me is why the map would be setup for 1.1 and 1.2 bar boost if it didn't make any difference.

So at the moment it's running 1bar boost and has 280bhp at the hubs.

As for the turbo, will be finding out at the weekend.

Cheers for your help.

[jonno]

Sounds more like a flow problem to me if power isnt going up with boost. Either turbine side or intercooler. Fuelling is usually dead easy to spot since the AFR goes really lean as boost rises, usually at the top end.

I am willing to put 50p on it being a crap intercooler or a tiny turbo.

What are the inlet temps like and what duty cycle is the boost solenoid running to give 1.2 bar?

Wasnt this the car that Trevor said he personally had dyno'd at 504bhp though?

Neil.

[MR2Mania]

Definately sounds like she has a standard fuel pump in there then.

It's running 1bar boost at the moment and when put above that it doesn't make a blind bit of difference.

As Neil says, does increasing the boost change the fueling? If not, then for some reason the extra boost is not creating extra flow.

What confuses me is why the map would be setup for 1.1 and 1.2 bar boost if it didn't make any difference.

Are you talking about the boost map here, mate?

As for the turbo, will be finding out at the weekend.

Put it this way, does it have "Toyota" written on the side, ie is it a CT26 or CT20b? What intercooler does it have? That might be another tell-tale sign as to what this engine has been putting out power-wise in the past.

[TRD 2000GT]

Sounds more like a flow problem to me if power isnt going up with boost. Either turbine side or intercooler. Fuelling is usually dead easy to spot since the AFR goes really lean as boost rises, usually at the top end.

From what i can remember thor said the same that. it's running very lean when the boost rises at the top end.

Going to check the turbo etc this weekend.

Wasnt this the car that Trevor said he personally had dyno'd at 504bhp though?

Neil.

Unfortunately this all got mixed in with the posts . TRD did do a 500bhp version. But this is surely not one.

However a dyno is floating about somewhere of it doing a 350bhp at the rear wheels. (Possibly the 400bhp version.).

Cheers

Andy

[TRD 2000GT]

Yep was talking about the map on the fc commander. Just seems a little strange that they would map if for 1.1 and 1.2 bar if it didn't make a difference.

The turbo has toyota stamped on it, but going to take off the housing to see whats inside. (Can't do it til the weekend because it's in a lock up).

Intercooler i will try and check aswell.

But if these where standard then why the hell would they put on a thick headgasket (baring in mind the car has done 30,000miles). Twin plate clutch, oilcoolers, TRD dif, HKS cams etc a bit over the top.... ?

[MR2Mania]

Yep was talking about the map on the fc commander. Just seems a little strange that they would map if for 1.1 and 1.2 bar if it didn't make a difference.

The turbo has toyota stamped on it, but going to take off the housing to see whats inside. (Can't do it til the weekend because it's in a lock up).

No need to take the housing off, mate. If you've got a set of measuring callipers, pull off the hose feeding the turbo with air and try and measure the inducer of the compressor wheel (ie the bit of the compressor wheel you can see). Standard Rev3 CT20b's have a compressor wheel with approx 48mm diameter.

But if these where standard then why the hell would they put on a thick headgasket (baring in mind the car has done 30,000miles). Twin plate clutch, oilcoolers, TRD dif, HKS cams etc a bit over the top.... ?

Remember when we were chatting about what TRD actually do as part of their packages on another thread? Well, I'm wondering whether all the internals were done, so that they could HANDLE 500bhp, but then it was just down to bolting on the right mods, ie turbo, fuel system, intercooler, etc.

It could be that the Jap owner just got bored and sold before he totally finished it, or it could be that the bolt-ons were removed and sold separately - if the latter, then maybe they couldn't be bothered to change the engine back too, as it's a LOT more hassle.

I still don't think you've lost out, mate. You've got a STUNNING car there, and if indeed it's been rebuilt with decent components, someone's done all the hard work for you!

[TRD 2000GT]

Yeah im definately thinking the car has been built with the capability of running higher power. Which is fine by me because like you say the hard work is done.

I'm still loving the car regardless. I still couldn't get a Rev5 turbo, put all the hardware mine has on it plus the body kit for the amount i paid for it. Plus it sitll wouldn't be a genuine TRD. Which i found out No.8 is a lucky number in Japanese aswell.

I spose it's good in a way because it means I can say what i have done to it and personalise it a bit. I just have a good platform to work from

Cheers

Andy

[MR2Mania]

Which i found out No.8 is a lucky number in Japanese aswell.

Actually, it's the CHINESE, mate! But that's not a bad thing, as they're more spiritual IMHO!

[TRD 2000GT]

Thats what I thought but I was down mission motorsports run by a Japanese couple and the girl was looking at the car and I showed her the VIN number and she said that No.8 is lucky. At which point I said isn't that chinese and she replied it's lucky for both.

[MR2Mania]

Thats what I thought but I was down mission motorsports run by a Japanese couple and the girl was looking at the car and I showed her the VIN number and she said that No.8 is lucky. At which point I said isn't that chinese and she replied it's lucky for both.

Mate, luck was ALREADY on your side to buy that TRD car!

But I agree, my Chinese mates ages ago convinced me of how lucky the no8 is, so that's why I bought a personalised no plate with that in - just haven't transferred it yet. Hoping I haven't lost it now!