After I popped my boosted engine a few years ago, the car has not been on the road. It was a forged internal LS bottom end with a stock B16 head with GSR cams. It was right around 10:1 compression on 25 psi with a custom t3/t4. The car ran awesome for for well over 15k with ALOT of highspeed pulls and ALOT of racing, it would pull on 600's.


I work at a road course and decided it was time to make this into my weekend track car.
LS crank/rods micropolished/ reconditioned.
B16 pistons/ 82mm bore
ARP rod/main/head bolts

B16 head/ portmatched with Crower valvetrain.
ITR cams. i alos have a set of skunk2 stage 2's i might try later on

Tri-y Replica header. 2.5 inch magnalfow muffler after the flew pipe and 3in out the back/stainless, made with dairy pipe lol.



Homemade ITB's
Suzuki GSXR1300 ITB's
Chopped/milled B16 manifold with aluminum tube fitted and welded.
homemade fuel rail from billet stock.
homemade injector seats to hold the DSM 450's
velocity stacks are the center runners that would typically be on the busa, but i just bought four of them.




currently having some issues with getting a good tune, but that is currently being addressed. any q's or comments id be glad to respond

 

Nice!

I'm building a similar setup on S2S2's with a performer X.. I will be trying the same ITB's as yours soon

 

nice!! im tryin to use some CBR itb's but i dont know what fuel rail and injectors to use without having to weld anything

 

looks good but I hate your radiator hoses lol. can't wait to see how it runs.

 

whats the diameter of those tb's?

 

The '01-'07 Busa's had 46mm plates/49mm inlets.

The new '08 Busa's have dual plates, 50mm inlets. One set of plates is operated mechanically (44mm), the other is electro-servo (46mm). The second plates are adjusted by the ECU for ideal air velocity.

'01-'07 (Left) / '08+ (right)

 

can you take a picture down the runner please?

 

could you tune the 08 hybusa's tb's to work ?

 

You could remove the electronic throttle servo and that entire butterfly assembly. Then it would be strictly mechanical with 44mm plates.

You would need a way to tune the electronic throttle otherwise.

 

probly alot easyer ... either that or you could use it like how the gsr works for the secondarys butterflys but that would probly be to much of a hassle for nearly no gain i guess