Got Over 400kw Atw?

[bigmikespec]

Correct Lith, it is a twin scroll setup. I keep looking up sleeves for hidden cards but at this stage it is showing remarkedly similar boost characteristics to the 35r single entry. Its only running gate spring pressure at this stage but until the gate starts open on spring pressure the curve is identical.

Waiting on a wide band sensor to arrive and then we'll hook the boost control up and go to town on it.

Pretty happy budgie so far.

Will it only be run using E85 Noel? Or is a petrol tune being done too?

Nice result so far!

[FineLine]

Any ETA on that? Surely it cant take long

Sensor was ordered from south this morning Steve. should get here monday/tuesday.

As soon as Sean has a spare spot he will throw it back on the rollers. I think he's quite keen to see where this goes as well.

[FineLine]

Will it only be run using E85 Noel? Or is a petrol tune being done too?

Nice result so far!

At this stage its e85 only Mike, However the way it drinks the stuff I may be forced to run a separate 98 unleaded tune. I renamed the car "sugar daddy"

[Rolls]

At this stage its e85 only Mike, However the way it drinks the stuff I may be forced to run a separate 98 unleaded tune. I renamed the car "sugar daddy"

Upgrade the fuel tank to 120L ?

[FineLine]

Upgrade the fuel tank to 120L ?

I'm trying to get weight out of it rolls. If it were a streeter only I would consider that option though.

[Lithium]

Correct Lith, it is a twin scroll setup. I keep looking up sleeves for hidden cards but at this stage it is showing remarkedly similar boost characteristics to the 35r single entry.

Thats not too surprising then, I'd have expected the 3788R to be a few hundred RPM laggier all things being equal, and a good twin scroll manifold drags things down a few hundred rpm (also tend to help low down/ midrange torque quite a bit too - on top of boost threshold). This is one of the reasons I've considered a twin scroll GT3582R as an upgrade over my single entry GT3076R, I've said before I have a strong suspicion it'd result in a similar drive in terms of building boost but with the ability for more power pretty much everywhere.

It will be interestingt to hear the power results and more importantly, how it drives - could be brutal

[Rolls]

If you changed nothing else but went from single scroll to twin scroll (both with good aftermarket manifolds) would the twin scroll make more peak power as well? or does it primarily only assist with low down/midrange power when coming onto boost?

[Lithium]

Maybe slight gains up high if you go to a bigger a/r housing than the single entry one, big the real tangible gains are midrange and coming up onto boost - bearing in mind thats for a given boost level, so because it spools faster as well the perceived spool and response will usually be better than what the boost curve would imply... if that makes sense?

[The Dan]

Interesting indeed.

On dyno/loaded/4th i take it?

No, that's on the street. Sean had a 20psi boost cut and a 4200rpm cut. I was hitting boost cut at 3900 in 4th. This was pre tune though, the timing will effect how the boost comes on so we'll see if it makes any difference.

[Lithium]

Nice! And doing that, how does it feel compared to the GT35R?

Most importantly, does it has a sweet antisurge whistle?

[NYTSKY]

Sounds promising. Mid 400s easy

[FineLine]

Sounds promising. Mid 400s easy

Thats not the plan Dave. Mid 500 hp has always been the goal. What we are trying to achieve here is that figure on as low a boost and revs as is attainable.

[NYTSKY]

20psi will certainly get there then.

[boiracer]

car sounded very sweet already last night Noel cant wait too see/hear the finished product. and just plain sexy under the bonnet

[Lithium]

Has it got bigger cams? On E85 I'd have thought >500whp on E85 would be a piece of piss anyway... a stock RB30/RB25 head wouldn't really gain much without some head fettling. On the flipside, with some big cams and that turbo - 20psi will justify the turbo but 600+whp would probably be the order of the day haha.

[r33_racer]

Nice achievement so far! Going to be a weapon with mid 500hp Noel. You will be buzzing tires like crazy!

[FineLine]

Has it got bigger cams? On E85 I'd have thought >500whp on E85 would be a piece of piss anyway... a stock RB30/RB25 head wouldn't really gain much without some head fettling. On the flipside, with some big cams and that turbo - 20psi will justify the turbo but 600+whp would probably be the order of the day haha.

It does have bigger cams Lith. 10.25 270 degree tomeis. The head has had a lot of attention in a minimalist kind of way. given we made 555 with the 35 on a .82 housing I have no doubt we could dial in pretty much anything up to around 6/650 hp if thats what we were chasing.

Nice achievement so far! Going to be a weapon with mid 500hp Noel. You will be buzzing tires like crazy!

Hoping we might finally have it right Mike. Its been a long hard road achieving the numbers with the 35r but it looks like all that trial and error may have cleared the path for the current setup.

[GTScotT]

Can we confirm the 3788 fitted is T3 open frame or T4 TS?

Very impressed none the less! Lets see 600+ at the tyres

[FineLine]

T4 twins scroll Scott.

[GTScotT]

Thanks