HKS T51R Turbo

[Luxluc]

What about the GT 4088R?

[Wez]

What about the GT 4088R?

 

The proper Garrett units seem to be lasting as well

 

I have been looking at the new BL PT6265 billet turbos and the FullRace Borg Warner based S300SX 88/75 which is a little smaller than a GT4088R

 

The BW units are oil cooled only so less plumbing.

Edited May 4, 2009 by Wez (see edit history)

[Ian C]

I love my T67Dbb turbo, get full boost nice and early and now it is set around 1.6 bar its insane. Pulls nice and strong. I am just setting up the speed boost part of my controller to keep it at 1.6bar all the way to redline.

 

 

1.6bar You're crazy man I usually run mine at 1.2 and it's fast enough, 1.4 is mad. Aren't you worried something might let go? Or is that just my oversensitive mechanical sympathy

 

-Ian

Edited May 4, 2009 by Ian C (see edit history)

[paul mac]

I would go for the t04z personally i would not touch BL heard of to many faliures in both the turbos and manifolds. have you looked into the SP range

 

cant speak about the manifolds but i was looking at having my BL T61 rebuilt purely as a precautionary measure when it goes on my rebuilt engine, this is the reply i got from a VERY well known UK based turbo specialist about Precision (BL) turbos - It isn't a question of not being able to get the parts, we have just found from experience that the quality of manufacture and assembly is not of a high enough standard for us to warrant working on them

[Steve]

1.6bar You're crazy man I usually run mine at 1.2 and it's fast enough, 1.4 is mad. Aren't you worried something might let go? Or is that just my oversensitive mechanical sympathy

 

-Ian

 

You should try it, its fun

 

I will probably turn it down a bit just for safety

[jevansio]

Been running mine at 1.6 BAR for a year now , don't think I could turn it back down, it'd just feel too slow

[Steve]

I blame Ryan

[Homer]

1.6bar You're crazy man I usually run mine at 1.2 and it's fast enough, 1.4 is mad. Aren't you worried something might let go? Or is that just my oversensitive mechanical sympathy

 

-Ian

 

I didn't like the way mine performed at 1.2 bar, moving to 1.4 bar released a significantly more amount of power, however on a daily driver any more would be too much power to be of any use.

 

550bhp on a turbocharged RWD road car is pretty insane, I honestly wouldn't want any more.

[Steve]

I didn't like the way mine performed at 1.2 bar, moving to 1.4 bar released a significantly more amount of power, however on a daily driver any more would be too much power to be of any use.

 

550bhp on a turbocharged RWD road car is pretty insane, I honestly wouldn't want any more.

 

Totally agree with you Darryl, i found the same thing between 1.2bar and 1.4bar.

I now have 1.3bar as my low boost setting and the 1.6bar as high boost.

I will leave it on the lower setting most of the time now and keep the higher setting for fun days

[jevansio]

550bhp on a turbocharged RWD road car is pretty insane, I honestly wouldn't want any more.

I agree, it scares me sometimes, I honestly think I'd be better off putting money into learning how to drive it better than going for any more power.

 

There's not a lot you come across on the road that can stay with (nevermind embarras) a 550bhp car.

 

I was keen for getting the T51R myself at one point, currently I'm more than happy with a GT4088R

[Kev.O]

Smarty, you have stock internals don't you?

I have the stock rods and was wondering what bar to get Ryan to map it to. Think I might try 1.6, like you guys. Jay what is your lower setting?

[jevansio]

I don't have one Kev, it's 1.6 BAR or nothing, I just go easy on the accelerator when I don't want the full performance

[Kev.O]

I don't have one Kev, it's 1.6 BAR or nothing, I just go easy on the accelerator when I don't want the full performance

 

Crazy

I wired in a switch so that I can go between the two settings.

[jevansio]

I did think about it, but if I'm honest with myself it would never be on the low setting

[Kev.O]

I did think about it, but if I'm honest with myself it would never be on the low setting

 

[dangerous brain]

All this talk of 1.6 bar has me wanting to trailer my car over to AFR to get it fixed

[Steve]

Smarty, you have stock internals don't you?

I have the stock rods and was wondering what bar to get Ryan to map it to. Think I might try 1.6, like you guys. Jay what is your lower setting?

Yes Kev I am on stock internals

[DARETT]

I too was considering a T51R kit, was talked out of it, and ended up with a T72 off Andy Bach's car in the US. They now have a triple ball bearing version of the 72mm turbo out and it is easily capable of your power figures and quick spool.

 

T51 and T04Z are a little pricey as well, and hard to come by, however found a couple sold by the same UK supplier

 

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=260394827299&ssPageName=STRK:MESE:IT

 

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260405031611

[michel lane]

There must be something wrong with your setup for your turbo to only get 1bar at 5000rpm . I would look closely into:

 

1:boost leaks

2:intercooler leaks

3:timing

4:cam setup

5: map

6:boost controller settings

 

You should be getting 1 bar by 4000rpm on this unit . If you change to a different turbo and still experiance the same problem then you are no better off and out of pocket. I suggest you get Ryan G to have a look at it, there maybe something wrong with the map or the boost controller settings.

 

He recently tuned my setup which is the samesize as a 51R and i get .5bar at 3500rpm and 1 bar at 3800rpm , 1.5 bar at 4000 rpm.

[Luxluc]

I agree on that ... I have 1.4 bar at 3900 rpm and hit the 1.6 bar at 4200 rpm on my stage 1 ... the stage 2(+) should be a little laggier ... but should not come on boost 1500 rpm later that the stage 1.

[Steve]

All this talk of 1.6 bar has me wanting to trailer my car over to AFR to get it fixed

 

Go on, do it

[Mike B]

If its a t67 sized turbo and not spooling very quickly and then whalloping power at you I'd of thought you should look at your exhaust housing first. From memory if its 1.25 A/R or higher then its designed to extract as high a power as possible but it does that at the expense of lag. Drop down to a 0.68 I think it is and see how you like that perhaps.

 

been round the block with the housings,

 

t67 works very well on the .86 housing, and it is a strong turbo. Tried a to4z and it was nothing like the t67 on the .86. I get full boost by 4.2 on a cast manifold, and hard pull from 3 upwards.

 

Michel has an sp74 that seems to go well.

[Guest KDW]

It's really all about personal preference. What one person might think is fast, another might think is slow. You can't tell a guy that 600bhp in a street car is insane!

 

IMO while 750bhp (T04Z) is fairly quick, it's certainly not mind blowing or insane.

So if you, like me, wants a little more beef you just have to accept the fact that it won't come at 4000 rpm.

"Lag" is overrated anyway, it's only a matter of gear selection.. What on the other hand is important is powerband. If you want more power you have to accept the fact that a built engine is needed. Rod bolts, valvetrain, and added CFM at the very least. All to allow a higher rev limiter. But that shouldn't be a problem since you are upgrading internals to cope with the extra power any way.

A big turbo on a stock motor won't be fast, but a big turbo on a proper built engine WILL!

 

All the nay sayers will come out with stuff like "you won't hook 800 whp in a street car so that much power is useless, etc.."

Yes you can! it's a matter of proper suspension and tire combo. I run M/T ET Street radials 325/50-15 on the street.

[tooquicktostop]

It's really all about personal preference. What one person might think is fast, another might think is slow. You can't tell a guy that 600bhp in a street car is insane!

 

IMO while 750bhp (T04Z) is fairly quick, it's certainly not mind blowing or insane.

So if you, like me, wants a little more beef you just have to accept the fact that it won't come at 4000 rpm.

"Lag" is overrated anyway, it's only a matter of gear selection.. What on the other hand is important is powerband. If you want more power you have to accept the fact that a built engine is needed. Rod bolts, valvetrain, and added CFM at the very least. All to allow a higher rev limiter. But that shouldn't be a problem since you are upgrading internals to cope with the extra power any way.

A big turbo on a stock motor won't be fast, but a big turbo on a proper built engine WILL!

 

All the nay sayers will come out with stuff like "you won't hook 800 whp in a street car so that much power is useless, etc.."

Yes you can! it's a matter of proper suspension and tire combo. I run M/T ET Street radials 325/50-15 on the street.

 

 

 

To say a TRUE 750 BHP in a road car is not mind blowing is just not right IMO, and yes I have owned one

 

I cant see a T04Z making a true 750 without insame boost however

[Mike B]

I cant see a T04Z making a true 750 without insame boost however

 

me niether

 

unless you have a friendly dyno