700BHP (crank or wheels)

[terribleturner]

I've been out in a T61 a couple of weeks back, a T61 Hybrid, T67 and Jamie's T88 and i have to say the power on the T88 really was something. I know alot of people say about the lag but tbh the power was on pretty quickly and then stayed there. Both the 61 hybrid and 67 were great cars but not really in the same league. If your upgrading your stocks and want a little extra power then 61 all the way. A bit more agression then the 67, but all out race warrior then the 88.

And im looking forward to a ride in Waynes GT40 very soon

 

I think if people have a turbo in mind you need to be in the car with someone using the same set up to feel the power. There's no point spend some serious cash because your looking for a power figure. As said before these can be unreliable and the car may end up too fast or possibly too slow for what you really wanted.

[Ian C]

I'll second what Matt said back there. This isn't a willy-waving attempt, it's just plain facts:

 

I've got a T67, it dyno'd 630bhp at 1.4bar thanks to supporting mods as well. That was with less than 8% transmission losses - it got 580 at the wheels. My arse dyno and the performance figures from TOTB etc kinda agree with that power figure. In the cold it will, every time, smoke the tyres in 3rd gear at about 5500rpm, that's about 70mph! (Pirelli P0's btw w/LSD) 2nd gives RLTC a hard time, and 1st it has an embolism. In the wet I don't even THINK about running 1.4bar, I turn it down to wastegate spring only, which is 0.9bar. It'll spin the wheels up in 4th at 100+ still.

 

I had a chance to get a bigger turbo, with a DBB bearing setup, but I went for the same sized turbo instead. I want the purported extra driveability that DBB gives me, and I want the water cooling jacket too. What I don't need is more bloody power. I run at 1.2bar normally because there is no point using full boost, it's ludicrously fast anyway. So why introduce more lag for more power I obviously don't want? If I wanted more wellie I'd run at 1.4bar all the time. I'd in fact push it on Optimax to 1.5 or 1.6, see how far I could go - but I haven't because a) I'm scared things really will start to break and b) I so don't need more power when I have trouble gripping at 70mph in the dry already.

 

So you see, as Terry and Matt and me and others have said for a while now, anything between 500 and 600bhp really is the useful limit for a road car. If you want more, fine, but you may be doing yourself a disservice. I love how mine drives and the lag is there but you just change your driving style around it. I recommend T61's to people who have more city driving and less looney tunes dual carriageway stuff like I do, because it's more responsive and a bloody good turbo. I mean, each to their own, but what *is* the point of having a car on the road that can't grip in the dry in 4th gear because it's so sodding powerful? Great for pub bragging. Shit for actually driving

 

-Ian

 

PS Paul you upsetting people after drinking again?

[TRD3000GT]

Sorry Jamie i just read your thread about you smashing into the jack in the garage and putting a hole in the front bumper that must have been a pleasurable drive, if you do some research you will see the T88 is an old truck turbo with agricultural delivery, i on the other hand didnt buy my supe ready done i spec'ed it myself and stuck to a T61 the car is making boost at 2800 rpm not 4800 rpm, by the way have you ever been in properly set up T61

 

Ill race you / hand it to you

[JamieP]

I'll second what Matt said back there. This isn't a willy-waving attempt, it's just plain facts:

 

I've got a T67, it dyno'd 630bhp at 1.4bar thanks to supporting mods as well. That was with less than 8% transmission losses - it got 580 at the wheels. My arse dyno and the performance figures from TOTB etc kinda agree with that power figure. In the cold it will, every time, smoke the tyres in 3rd gear at about 5500rpm, that's about 70mph! (Pirelli P0's btw w/LSD) 2nd gives RLTC a hard time, and 1st it has an embolism. In the wet I don't even THINK about running 1.4bar, I turn it down to wastegate spring only, which is 0.9bar. It'll spin the wheels up in 4th at 100+ still.

 

I had a chance to get a bigger turbo, with a DBB bearing setup, but I went for the same sized turbo instead. I want the purported extra driveability that DBB gives me, and I want the water cooling jacket too. What I don't need is more bloody power. I run at 1.2bar normally because there is no point using full boost, it's ludicrously fast anyway. So why introduce more lag for more power I obviously don't want? If I wanted more wellie I'd run at 1.4bar all the time. I'd in fact push it on Optimax to 1.5 or 1.6, see how far I could go - but I haven't because a) I'm scared things really will start to break and b) I so don't need more power when I have trouble gripping at 70mph in the dry already.

 

So you see, as Terry and Matt and me and others have said for a while now, anything between 500 and 600bhp really is the useful limit for a road car. If you want more, fine, but you may be doing yourself a disservice. I love how mine drives and the lag is there but you just change your driving style around it. I recommend T61's to people who have more city driving and less looney tunes dual carriageway stuff like I do, because it's more responsive and a bloody good turbo. I mean, each to their own, but what *is* the point of having a car on the road that can't grip in the dry in 4th gear because it's so sodding powerful? Great for pub bragging. Shit for actually driving

 

-Ian

 

PS Paul you upsetting people after drinking again?

ian i would love to meet up some time a go for a spin in your car, it sounds awesome i may well change to a t67 if its as good as you say:)

ps what was your 1/4 mile time at totb?

[JamieP]

Ill race you / hand it to you

yea lets meet up;)i would would love to go for a spin in your car looks very nice

[JamieP]

id just like to add i think some of you are getting me wrong, im not saying that the T88 is the best turbo for rob, all i was doing is offering a ride in my car for comparison, i agree with people on saying that the t88 is a little laggy and i may well change to a t67-t71 if there as good as you say so if anyone would like to take me for a spin in there t67 or t71 powered car i would appreciate it:) thanks jamie

[Ian C]

ian i would love to meet up some time a go for a spin in your car, it sounds awesome i may well change to a t67 if its as good as you say:)

ps what was your 1/4 mile time at totb?

 

My 1/4mile time on street tyres (and stiff rear suspension!) was 12.7, but I managed a 129mph terminal speed

 

-Ian

[JamieP]

My 1/4mile time on street tyres (and stiff rear suspension!) was 12.7, but I managed a 129mph terminal speed

 

-Ian

nice terminal:) you need to speak to monkeymark he has written it down as 123mph here;)

http://www.mkivsupra.net/vbb/showthread.php?t=29073

[Matt Harwood]

The things I like about the T67, is that you achive full boost about the same time as the second turbo comes in on a stock sequential car. So the performance drivability is very similar, with the exception that you don't get a nasty kick as boost 'switches' from 0.9 bar to 1.3 on the sequential set-up which can upset the balance of acceleration.

The other thing is that in the 'laggy' area, it makes wet weather driving easy too. Not to mention that on a run, because you can cruise at about 80mph without boost, the car's more economical too! I recently got 330 miles from a tank full with mostly A/M road driving. OK I was taking it easy, but not really driving like Miss Daisy.

[uk-rich]

i have a PHR stage 2+ which is a modified T67, and i must stay its pretty nippy

[Guest Usmann A]

Ill race you / hand it to you

 

Ill race YOU.

 

 

haha, everyones right, this place has changed alot.

 

It all depends on waht you want, what configuration of parts, how you do things to imporve motor response and in turn spool up,theres only a certain amount you can do, but all the little things come together and can have a really positive affect as a whole.

 

61mms on .68, with a cast manifold, and higher CR would be a lovely ride for the avid roadracer. Response or what, but no doubtidly run out of steam compared to a tubular mani with the same turbo, esp a good designed mani, where the puleses hit that turbine and give it some kick to get it moving.

 

Theres only so much you can talk about confiurations,I personally am one for a nice topend, and belive that the rods like some rest low down. LOL

 

let the driving do the talking.(at the drag strip fellas, not this ill race ya business, mwhahaha)

 

A

 

I been out in Darren Adams lastnight, i dont think its laggy, just rather scary tbh.