:D:lol1:

no worries kev ill try pop up

i took for granted you knew my user name my bad :norty:

Attachment 53403

It certainly does - thanks. :)

Am rubbing my hands vigourously (like a mental patient :cuckoo: :D) in anticipation on the SC46 XTR results... :cool:

Hi,
tis you Sir, I am sure your user name was something else a few years ago, :wonder: never mind pop up to suit.
cheers
Kev

Kev ill be booking in for a map tweak sometime soon well prob gonna be 6 weeks or so.
If my gt35 is the smaller .63 housing ill defo be going for that new billet 35 with the .82 housing,should be similar spool and loads more power :D.
See you soon.

Got the car ready yesterday for the trip up north on Thursday for the 35R billet testing. On with a set of road wheels and tyres ready for the dyno :)


Attachment 53156
Attachment 53157
Attachment 53158

Good luck clive....

Thanks mate, fingers crossed all goes well

Subscribed :thumb:. Watching this one with interest.

GT33 XT-R Billet sounds interesting, I guessing its a GT30 hybrid of some kind?

Dave

Any results on the billet 35 yet guys,**** get up there today.

Hi,
GT35 verses GT35 billet


Attachment 53200


GT35 verses GT35 billet @2.2 bar


Attachment 53201

:D:D:D:D

Result :thumb:

Thanks to Paul from Zen and Clive for putting his car at risk. :luxhello:

Cheers
Kev

Hi,

to make it a bit clearer the base run on the standard 35R came in at 578.9 flywheel bhp.

Turbo swapped, map tweaked to suit and 603.6 bhp appeared at exactly the same boost.

Decision made to up the boost to 2.2 bar gave 622.3 BHP :thumb:

Good result we think. :D

Thanks to everyone for their interest in this thread.

Cheers
Kev

Amazing Clive bet your'e buzzing kidda.Is this car shared with paul then or have i miss read something..

I can see the billet turbo does well, just wondering why it seems to be slower to spool in both graphs, when it has a lighter wheel? Is there an explanation, or is it just a fluke? Definitely bigger area under curve at same boost, but surprisingly slightly slower spool up, say 200 rpm slower to make 12 psi.

Result... it defo works then tad under 25 bhp increase.
2.2 bar of boost is a bit mad int it ?.
What fuel was used kev?.

Don't these turbos have a slightly bigger hotside ?

Which would explain more power and abit more lag.

Kev,
Impressive mid and top-end increases, bar the slightly slower spool to 4.5k. Well done! :)

I wonder how this type of turbo would perform on a high comp. 2.5ltr with Cossie Heads and CAMS (putting the latter two to some good use). :D

Any further news for the run with the SC46 XTR billet?

Fab results for the GT35 billet BTW - but would also like an explaination for the slightly slower spool, bearing in mind the impeller is significantly lighter (is it 33% lighter too?).

Have you got a grapph showing afr and ftlb ?,im sat here with my graphs out now comparin lol.!!!

An can someone tell me what the leters stand for at the bottom of the graph,(sorry to sound dum),
BP = ?
RH = ?
AT = ?
IT =?
RR =?
TN = ?

AT - outside air temps
IT - intake temps

Can't remember the rest :D

AT = Ambient Temp
BP = Barometric Pressure

No this one is mine, the white type R is the one we are sharing. That's little Paul as we refer to him not Paul Blamire:)

As for the turbo I am really pleased, great result. Must says thanks to all involved at the Clinic and to Paul for taking a whole day out to travel up north with us to map the car. Thanks also to everyone else who came along to witness the event.

I have some pics etc too, will get them up soon.

Will try and answer a few questions

Fuel was V-Power + 20% Meth
Turbo size is the same 0.82A/R
I can't explain spool but not an issue for me, this is after all a race can not road car. I would not want to be using this sort of power on the road tbh.

Yes it does spool slightly differently, but it's sometimes hard to know what is time related and what is RPM related. The runs were pretty quick to flash through so representative of the car in say 3rd-4th gear on the road.

Turbos are funny things, and the same thing that allows the turbo to make more power at the same boost may be the very same thing that causes slightly slower spool IN SOME CIRCUMSTANCES. It was also clear when mapping the car for the new turbo, that it totally changed the fueling right from low down, and I suspect that any small changes in spool would be more than made up for in a improved power and response on and off the throttle around atmospheric pressure.

It's important to realise that the billet wheels are not just a billet copy of the original, made sightly lighter, but a totally different shape of wheel that reacts in a different matter. And also although they are both GT35 based turbos, Clive's original turbo is one of the very earliest GT35s that ever was, in fact it's 0.82 A/R ex housing was the first ever made (modified from a 0.82 A/R GT30 housing) so it is possible that there are slight changes in the housing, or a build up of scale or maybe the new turbo will loosen up a little with further use.

Todays result are pretty clear i think, we went to some lengths to ensure the test was as fair and "back to back" as possible, and the differences are clear to see at high boost, but also there were similar gains at 1.5 bar and 1.8 bar.

Overall I think it's a cracking turbo, it's so obviously different when you come to map it, and I suspect on some (Subaru) cars it will go on to make more power again, 650+ should be in reach.

Many thanks to Kev and his team at Scoobyclinic for their hospitality today.

Paul

Few pics

New Billet

Attachment 53159

On the rollers

Attachment 53160

Not the highest power run but shows torque curve 550ftlbs peak and still over 450ftlbs at 7000rpm !

Attachment 53161

Pleased for your result Clive. :)

Cheers Shaun, can't wait to give it a proper run out on the strip now and the 30-130 coming soon :)

Thanks a lot for the explanation Paul, I regretted sounding a little bit negative, as this is a good result, and a special turbo. Tom

Some of the billet GT30 results mean that you might be looking at one of those instead of a GT35R.

Clive - can you explain to us what 600+ feels like on the road? I take it you do actually give it the occasional beans on the road? lol How much space do you have to give yourself on the road, etc.?

(I suppose it'll be impossible for us to appreciate as we have no reference...)