MAX boost psi...how much?

[Tinyvw]

In the works is a TF1 2442 with Scat racing billet Flanged crank, Pauter 5.5 rods, thick wall AA cylinders, Wiseco pistons with Diamond pins @.197 wall thickness, CNC Ultra Wedge port heads, Eagle 2250 cam with 1.25:1 rockers...I believe this combo is pretty stout to handle the HP...I'll also be using Raceware studs to hold everything together. ..my turbo of choice was recommended by Turbos Direct, a 57 trim Garrett turbo. ..how much boost do you think my setup can safely handle...I'll be incorporating a Turbosmart controller with water/meth injection. ..also, if anyone has a hp calculator I'm curious as to what kind of power this engine will make...my guess is around 350-400 with 25 lbs of boost.

Thanks

[Clonebug]

Well.......If a pretty close to stock engine can handle 22-30 lbs boost.........You should be able to at least hit that and at that level you would most likely have quite the handful.
I have been at 22 lbs. for 2-3 years on the street with my 1679.....Guys in Sweden have been at 30 lbs with E85 using a stock cranked 1641 with big cam and ported stock heads. They have dynoed at 400 hp or more and proven it with 10 sec. 1/4 mile times.

Build a quality WI system and an intercooler would be a wise investment.

[buguy]

Dang. Better keep an extra pair of undies in the glovebox!

[Tinyvw]

Thanks for the replies, this motor is for a toy baja project.

[buguy]

Any idea what kind of compression your going to run?

[Tinyvw]

9.5:1

[carsten bb]

You should be able to boost 30+ psi IF you have the corect camshaft, turbo, fuel, temp and correct tune ANd get the HP.
If you have the incorect turbo and or camshaft /set up, you still will be able to boost 30psi, but you will not get the HP. Heat and back pressure is the hp killer.
A "trim 57" turbo says verry little.. what turbine wheel size ? What size housing?
Your parts are stout, and up for the job.
I would reconsider a turbo spesific camshaft, and a second opinion on the turbo.

My small 2117ccm has 450Whp at 23psi and 575whp at 33psi.

Reg Carsten

[Tinyvw]

My MAP is only rated for 25psi, 2.5 bar and is not upgradeable. ..it is a Fitech 4 bbl system blow through.

[Chip Birks]

Do you have the fiat baja?

[Tinyvw]

On another note...I was originally looking at the Fast XFI efi which is good for 5 bar...but when you add up all the system components where talking like almost $5k just for the EFI system, that would make a killer ride. ..but going with the Fitech through Rodney Designs, I'll have to sacrifice another 25psi...that total investment will be under $2k...is it worth $3k for another 25psi?

[Tinyvw]

Do you have the fiat baja?

YES...GUILTY . ..how many vw guys have a TF1 case?...on Samba I am VeeWeeman. ..I just like Tinyvw too.

It's nice to know what a Fiat baja is

[carsten bb]

2.5 bar absolute is a litle low in my book. Limited to 1.5 bar boost.

Im not shure how the Fitech would ensure even fuel distribution at high boost. Looks like a system mainly the replace carbs on V8s.
I would go with a more advanced system, and ITBs.

Reg
Carsten

[buguy]

30 psi with 9.5:1 compression?! On what fuel?!
Did you get the whole kit from him? I love his header!

[Tinyvw]

30 psi with 9.5:1 compression?! On what fuel?!
Did you get the whole kit from him? I love his header!

I haven't bought the kit yet, just my initial plans. ..but Rodney does offer a lot for the money.

As for fuel, 93 pump gas with Turbosmart controller and water/meth injection.

[buguy]

I wanted to buy his header myself, but it was just a bit pricey for me.