Turbo 04 R6 project

[Desmo]

Same system actually after a quick read up. AIS (Air Injection System).

[Nath]

Same system actually after a quick read up. AIS (Air Injection System).

Maybe similar, its not the same.

The R6 one does not have anything to do with the exhaust.

[Rich]

I think it does Nath...

It just goes direct in to the exhaust port like a Suzuki...

[themadone]

The briefest look around on the internet will show you any number of turbo 600's that are running td04's, or very similar. It may be designed for a 2l car engine, but it's designed for a 2l engine that revs to 6000 rpm.

My 600cc revs to 15,500 rpm. It is displacing a LOT more air than a 660cc car engine.
I am confident this engine will spool the turbo just fine, and also remember the gearing on this bike is designed to keep it revving high - if it doesn't spool untill 7-8000rpm, that is not a problem.

In the ideal world, yes, I would use a slightly smaller turbo to get it spooled up at a slightly lower rpm, but as I said I am quite confident the R6 will spool it up just fine.

Even if it doesn't, all I have to do is swap the turbo to a smaller unit, and considering I picked this one up for an absolute steal ($103 au), I cant really loose.


Sorry if that comes across as a bit curt, but this has been done to death already. I have researched it, and yes, this is a compromise, but it is still going to work - I intend to prove it

Run a motec and antilag.

[sav_dan]

Yeha pretty sure it go through to the exhaust, thats why you have to remove/block it while dynotuning, if not it will give a false AF ratio

[Desmo]

Maybe similar, its not the same.

I think it does Nath...

It just goes direct in to the exhaust port like a Suzuki...

AIS takes clean air from the air box where it is distributed and pulled (under vacuum) past the reed valves and in to the exhaust port where it mixes with
the unburned fuel and ignites @ 1200 degrees it in the exhaust header.

From the same forum those photo's came from

Either way remove it.
It'll give you incorrect A:F ratios on your lambda sensor when tuning, and It's pointless with the backpressure your turbo will produce.

[96]

nice thread, but excuse me if im wrong...
early wrx spools at 3750(ish) (thats what u said these turbos are off)
so 3750rpm X 1L (half used per rev, as its four stroke) = 3750 litres of air per minute

so for your bike...im assuming u need the same flow rate to spool the same turbo?

3750 / 0.3 = 12500 rpm. ??? am i doin it right?

that seems correct to me. or can u change the size of the pipe work to speed up the airflo?

[Desmo]

Or change impeller sizes and number of vanes.

[Charger]

Run a motec and antilag.

I've never really bothered to learn how modern sportsbike timing is controlled (shims or something?). I know antilag kills exhaust valves in cars, what would it do to a bike?

[Goofy]

great... just freakin great. You promise me nice roads when I get over o Victoria... now 4 weeks out and you go and do this.

What am I meant to ride now??

Jerk






Looks good mate can't wait to see what progress you'll make in a few weeks

[Ryder]

Thanks for your input and experience guys, it's very much appreciated

nice thread, but excuse me if im wrong...
early wrx spools at 3750(ish) (thats what u said these turbos are off)
so 3750rpm X 1L (half used per rev, as its four stroke) = 3750 litres of air per minute

so for your bike...im assuming u need the same flow rate to spool the same turbo?

3750 / 0.3 = 12500 rpm. ??? am i doin it right?

that seems correct to me. or can u change the size of the pipe work to speed up the airflo?

Early WRX used TD05, not a TD04L which I'm using. The TD04 spools lower. And your calculation for the spooling of the turbo isn't correct - turbo's run at RPM's from the tens of thousands to the hundreds of thousands, and where they spool up on the engine's rev range is affected by quite a number of factors.

I cant tell you exactly where it will start to work, but I'm expecting it to spool up somewhere around 7-9000rpm, and definately below 10,000. Which, considering the bike's rev range, and where it works best, will be fine. And like I have said before, even if it's not, all the basic hardware will be there so all I would have to do is swap out the turbo with a smaller unit. I won't have lost anything by trying this one.


Could you guys please make that the last post on the turbo size? It really is beating a dead horse about now.

[Ryder]

great... just freakin great. You promise me nice roads when I get over o Victoria... now 4 weeks out and you go and do this.

What am I meant to ride now??

Jerk






Looks good mate can't wait to see what progress you'll make in a few weeks

Well... I can still promise you nice roads

[Lord_Muck]

I'll make one last positive comment on turbo size. I think the TD04 should do the job, i had a TRUST TD05-14b on a ca18det and that hit 12psi at about 3600-3800rpm with 2" IC piping and that is a small-mid sized drift turbo on that motor (which revved to 7200rpm but peak power was probly around 6000rpm).

Bore and stroke have a lot to do with the spool of a turbo, as does manifold design, intercooler/intake piping (for air speed) rather than just simply engine displacement. There's several ways to modify a turbo to make it spool sooner (various machining, tolerances between wheel and housing etc, wheel designs) and Mitsubishi and Subaru run TD series turbo's. T3/T4's are common coz the big name companies like HKS and GARRET use those. And coz they come on Nissans

[browncow]

Subscribed.

Turbo bikes are cool. Fuck the haters, enjoy your Vroom-PSSSCHH!!

[RT]

yep its all about the noise!! good work!

[Ryder]

Here is that scale photo, which shows the turbo's actual size, that I've been promising for a while now



As you can see, it's not as big as the avatar pic makes it look. (which, admittedly, was half the point of that pic.)

[Gordan]

*waits for the "turbo is too small" comments*

[Desmo]

Just try and fit it as close to the exhaust ports as you possibly can.
Shorter the runner length to the turbo, shorter the spool up time, and less lag.

[chee]

ceramic coat the headers and the exhaust end of the turbo.

[House]

Sweet, will be watching this thread with interest.