GReddy T67 info please

[stevecordiner]

Ahaa .. makes sense! Lets just hope Dan finds a car that would suit your needs

[JJ]

It doesn't really appeal to be honest

You do right to be honest !! Michels scared of the t-78 which defeats the object of having it put on.... its nothing then everything... then when the everything comes through, your butts nipping because its either breaking traction or on the edge of breaking traction @ 80/90 not everyones cuppa tea. I've already been a bad influence and told him to get his butt to elvington at the end of the month. Should be interesting.

[Hedgehog Dodger]

Glad your not in a hurry as I need to check my finances first, and also need to find a suitable replacement.

Good Good me too Does the screamer pipe do just that? MScream? No benefits from it?.

Yeah basically. Great Noise though

Beleive it or not, a T78 with a 2.2L will produce about 650HP @ 1.5 bar...obviously with 1000CC INJ and a nasty fuel pump and a boot mounted IC IMO

I really dont wanna go big a55 turbo. I'll be using mine on the roads not at drag strips.

A TD06 series will be big enough for you needs then. Paul Hornsey has got this on hit Tubby. Very quick spool up time, about 3200 full boost IIRC

The 3037s has good spool times if your revving at say 4500+....but in 4th at 60mph @ 3500(ish) revs when you plant your foot down there is some lag. Its still driveable though...but only just.

By the way I am trying to learn how an external wastegate works. How stuff works site doesnt go into it. Can some one explain with the aid of pics if possible. I'd like to see how it all looks together etc.

It works the same was as a Bleed Valve......once a certain PSI is reached....Wastegate Valve opens and exhaust gasses and dumped out In basic terms. One of the big boys can explain better....and when I say big I mean big Brains!

[SFLee]

while we on the subject of T-67, what psi do you think to run on stock rev3 is safe ?? or not safe at all , with st205cc

[ENSMR2]

Beleive it or not, a T78 with a 2.2L will produce about 650HP @ 1.5 bar...obviously with 1000CC INJ and a nasty fuel pump and a boot mounted IC IMO

I really dont wanna go big a55 turbo. I'll be using mine on the roads not at drag strips.

A TD06 series will be big enough for you needs then. Paul Hornsey has got this on hit Tubby. Very quick spool up time, about 3200 full boost IIRC

Edit: It'd help if I actually typed something before I submitted!!

The only prob with looking at turbo info is that various sites have different power outputs for the same turbo. Ive just seen that a T67 can handle 550bhp?!? (Chart that michael put up on page 1 of this thread) A 3037 does 430approx and on another site 500+ I suppose its fly and wheel hp in that case?

The TD06 is lower than the 3037 in terms of power. Spool up time may be quicker though. Then there is always the GT3040 for around £100 more. Then £30 more than that and there is the 3540!!!!

Dan if you wouldnt mind, what you say to giving me a spin in your beast one day? I may be up in Birmingham in the next month or so. Its not that much further for me to travel.

N

[Hedgehog Dodger]

Dan if you wouldnt mind, what you say to giving me a spin in your beast one day? I may be up in Birmingham in the next month or so. Its not that much further for me to travel.

N

Are you doing the Rolling Road in March? Mine will be there, Paul Hornsey's will be there. Good chance to maybe have a test drive in the motor

[michael]

Ive just seen that a T67 can handle 550bhp?!? (Chart that michael put up on page 1 of this thread) A 3037 does 430approx and on another site 500+ I suppose its fly and wheel hp in that case?

That little picture isn't based on the MR2 figures, I have no idea what engine data it uses - it's just a rough guide to give you an idea which turbos have more potential than others.

[ENSMR2]

Dan if you wouldnt mind, what you say to giving me a spin in your beast one day? I may be up in Birmingham in the next month or so. Its not that much further for me to travel.

N

Are you doing the Rolling Road in March? Mine will be there, Paul Hornsey's will be there. Good chance to maybe have a test drive in the motor

No, My 2 will still be off the road for then. I dont expect it back on the road until late this year or early next year

Where is the RR being held? I might be able to pop down/arange my trip to birmingham for then.

[Hedgehog Dodger]

No, My 2 will still be off the road for then. I dont expect it back on the road until late this year or early next year

Where is the RR being held? I might be able to pop down/arange my trip to birmingham for then.

Rolling Road

Its 26th March. Arrange for then and we can see what happend

[ENSMR2]

Cheers I'll do that. I'll be in the missus 1.2 clio! So you guys better watch out lol

[ENSMR2]

Just had a look at the fensport site. Their corrolla's dyno graph is on there. Im not too impressed with it really. Ok torque is pretty high at 400 lbs but theres no real great incline in the graph. Thats on a GT3035 ball bearing turbo.

Its pushing 535bhp thats about 450 at the wheels not factoring transmission losses!! Its pretty poor compared to what I would have expected. Im guessing weight wont effect torque on a rolling road will it? Just wondering if a 2 with the same mods would get the same readout or if weight is a factor on a rolling road. Im guessing not.

http://www.fensport.co.uk/fensportcars.htm

If you want to run pump fuel, realistically your looking at a bit bigger turbo again - or atleast a larger AR on the turbine side to flow a bit more air out. Question is, do you want to make 500rwhp at say 1.7 bar at 7500rpm or at 2 bar at 8k rpms. Up to you really.

Steve: Just like I forget about the nitrous I forget about this. I really want a high torque figure. preferably as low as poss although not neccesarily possible. Put it this way I went from wanting 450 at the fly to over 450 at the rear wheels! I've got used to the idea that 300+ lbs of torque is prob gonna be impossible before 4k!!!! I want a car thats gonna pull like a mofo. Ok so rwhp required is as close to 500 as poss. I want really high torque that pulls from as low down as possible and I'd like to see that plot on the graph for the torque climb up as if is a space shuttle taking off!!! Straight up!!....ok maybe not that great an incline but you get what I mean. The lower down in the rev range the peaks of boost, power and torque the better.

[JJ]

"Its pretty poor compared to what I would have expected."

lol !! It pulls 10's to the qrt doesn't it ?????? thats like 0-135mph in 10 seconds... is that poor !! crikey... you need to buy a bike for the thrills your expecting !

[Hedgehog Dodger]

Its pushing 535bhp thats about 450 at the wheels not factoring transmission losses!! Its pretty poor compared to what I would have expected. Im guessing weight wont effect torque on a rolling road will it? Just wondering if a 2 with the same mods would get the same readout or if weight is a factor on a rolling road. Im guessing not.

WHAT!!!!! 450 @ the wheels in a 4WD car is pretty poor. Come one fella.........I would love 450HP at the wheels in my car!!!!!

[ENSMR2]

"Its pretty poor compared to what I would have expected."

lol !! It pulls 10's to the qrt doesn't it ?????? thats like 0-135mph in 10 seconds... is that poor !! crikey... you need to buy a bike for the thrills your expecting !

WHAT!!!!! 450 @ the wheels in a 4WD car is pretty poor. Come one fella.........I would love 450HP at the wheels in my car!!!!!

HAHA No you guys have your sights set too low. lol only joking.

What I meant was I just expected higher torque and also a steeper plot on the dyno graph. I mean at 5k the cars hitting 225 lbs approx. Thats pretty low for that high in the rev range. I understand its probably turbo lag issues I was just shocked at how low it was.

By the way how big is a T78? and is it ball bearing?

[Lee @ 3S Service Centre]

By the way how big is a T78? and is it ball bearing?

BIG and no

easy 600bhp I reckon

[stevecordiner]

I've got a video of a 2 liter MR2 running 100 shot of nitrous and a T78 at 2 bar on the dyno. It really takes off around 4700-5000rpm and screams to the redline. I'd say you need atleast a 8k rev limit with a T78.

Can be downloaded from here http://www.boostaddict.com/forum/viewto ... 45ada7cd28

It partly depends on which T78 turbine housing you're using, there are different options I think.

[ENSMR2]

hmmm well the nos probably bought down the lag by quite a bit. Its also become an option for me. But I dont know how I get traction down on that. I may have to humble my self.

[stevecordiner]

How about something like Andy F's turbo? He's making 408 at the hubs at 1.6 bar - so crank it to 1.8 and it'll be around 450, then add on a 50 shot when you want it. His wasn't really laggy and it had a hell of a whollop in the torque curve!

[ENSMR2]

What has he again?

Yeah but can it hold 1.8 bar? ideally 2 bar would be awesome. Like I said I want as close to 500 at the wheels pre nos.

I'll check out his dyno graph again.

[ENSMR2]

Just had a look. Very nice torque incline on the dyno graph.

I want more. more I tell ya.

Give me a guestimate on how much a 2.2 would improve things. ( peak torque wise)

Man I must be starting to get annoying. Sorry