Jump to content
The mkiv Supra Owners Club

Testing New Prototype 4" Exhaust (new video added with Boost)


JamieP

Recommended Posts

  • Replies 79
  • Created
  • Last Reply

Top Posters In This Topic

No drone, never had any 4" exhaust that has done that, only seems to be a 3" thing.

 

I must admit, I'm so tempted to go 4". But, if I keep adding stuff, I'll never get the bloody car back! I'll see how the Tanabe goes, first.

Link to comment
Share on other sites

As far as it'll go. Got twin 044's, -10 fuel rail, triple carbon clutch, twin billet turbos. Should be able to flow 80-90lb/min of air. I really think the 3" will restrict it.

Maybe 750whp?

 

3" will 100% restrict that, when i tried a 3" system it killed the performance on my car.

 

You will make much more than that, Lee did 825 at the hubs with 1.8bar iirc, 2.2 bar you should be in the 1000 hub range id have thought, as with my car fuel will be your limit.

 

What size are Ken hendersons HKS twins? he did over 1100 whp iirc.

 

 

Sounds great and looks amazing too, how is this back box installed, is it exchangable or is it welded onto your existing 4''system exhaust?

 

Just slips over the system, same as a HKS or BL back box fits.

Link to comment
Share on other sites

3" will 100% restrict that, when i tried a 3" system it killed the performance on my car.

 

You will make much more than that, Lee did 825 at the hubs with 1.8bar iirc, 2.2 bar you should be in the 1000 hub range id have thought, as with my car fuel will be your limit.

 

What size are Ken hendersons HKS twins? he did over 1100 whp iirc.

 

Not sure on Ken's mate. I've got a different route, with complete modern turbos from Owen Developments. Modern technology, blade area and material - Effectively GTX range on mine. Turbos are rated for 620bhp each at 2.5bar.

 

I'll be going for the max 3" will allow, get the car used for a bit, then see about some kind of quiet 4" system in the winter.

Link to comment
Share on other sites

Not sure on Ken's mate. I've got a different route, with complete modern turbos from Owen Developments. Modern technology, blade area and material - Effectively GTX range on mine. Turbos are rated for 620bhp each at 2.5bar.

 

I'll be going for the max 3" will allow, get the car used for a bit, then see about some kind of quiet 4" system in the winter.

 

Nice :D

Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.