Twin Turbo is on it's way!

[lazylongboarder]

I decided on the twin turbo 2.0 liter subaru motor and ordered it on Friday. I've been debating on whether on going with an inline 4 then i decided against it after seeing a honda b16a in the back of a bug and it looked HORRIBLE! I didn't think that it would stick out so much. The next runner up was the rotary 13b. After talking to some tuners that work on both subaru and rotary, I decided i didn't want to deal with the rotary's unreliableity. In the rotary's defense, they are light weight and have the ability to get some high horse power #'s but anything over 250 with a 2nd generation motor compromises the longevity and especially with a JDM motor, it wasn't reasuring.


Subarus on the other end of the reliablity spectrum have a great record for being long lasting. In 2003 they had the least amount of lemons and returns of any other car company. And even beyond that, in 2004 they were "the most reliable manufacturer of motor vehicles" according to consumer reports.
That helped persuade me on choosing the EJ20TT, but it didn't tell me about the performance of the motor. Looking at the light weight 4 cylinder motors I had to choose from, the subaru seems to be the logical choice being a horizontally opposed four cylinder like the car came with. And with a performance track record like subaru and the ability to get 300 hp reliably out of a 4 cylinder motor for the mass market is pretty incredible. 600 hp is very possible and 1200 hp has been done before with these motors. Xcceleration.com has a method of sleeving the block that will give the motor the ability to withstand 50 psi reliably!

My plans for the motor is to lose the twins and put a single T3/T4 with a turbo smart 38mm ultra-gate, weldon fuel pump, 50 lbs injectors, and run it at 10 psi around town and 18 for fun. Running 10 psi will get roughly 290 hp and 18 psi will pull 395 hp. The reason why i'm losing the twin turbos is only because of the ability to have good boost control. When, not if, but when the motor blows from running it at 18 lbs I'm gonna go with a 2.5 liter fully closed deck block Je pistons and i'm still deciding on the rods. I'll Cryo treat the block and crank, and run 25 lbs which is about 470 hp and bump it up to 33 lbs that will make this motor scream at 540 hp on race gas.

One of the U.S.'s longest most technical tracks ever is going to be finished in the next month in Toele UT. About 45 mins. away from orem, where i live. So the car MUST be over kill!

The motor will be mated up to a 6 speed G-50 so 160 mph won't be a problem getting there, just keeping the car on the ground will be a challenge. Wish me luck!

If anyone is interested in converting their EJ20T (220 hp) into an EJ20TT (276 hp), let me know @ epikelectronics@hotmail.com. I'm thinking $200 sound fair.

[libila]

Cool! I wish you the best of luck on your project.

Where are you planning on putting the radiator and intercooler?

Are you going to push the motor and tranny up so it's more mid-engine for better fitment and balance?

What kind of suspension and bracing do you/will you have?

[lazylongboarder]

Originally Posted by libila

Cool! I wish you the best of luck on your project.

Where are you planning on putting the radiator and intercooler?

Are you going to push the motor and tranny up so it's more mid-engine for better fitment and balance?

What kind of suspension and bracing do you/will you have?

The radiator and intercooler will go behind the front seats in front of the rear fenders. I'm going to use a 3 row aluminum radiator, and 4'' thick intercooler so the dimensions don't have to be to large.

I'll move the motor and tranny up as far as I can enough to retain a good angle on the CV's and still have the stock wheelbase.

The rear suspension will be a multi-link double wishbone setup from a 993. I'm going to tie everything into the 14 point cage, including hanging the rear suspension assembly. Mid engine would be nice but I couldn't use the 993 setup.

[ricola]

Originally Posted by lazylongboarder

The radiator and intercooler will go behind the front seats in front of the rear fenders.

Speaking from experience and being on conversion forums for years; please reconsider fitting the radiator in the back! You will need natural direct air flow and LOTS of it to cool anything like the power you are talking about producing...

Rich

[Wally]

FYI: In the 'VW Speed' magazine of this month, there's an article in there on a street 1303 with an EJ20T engine and it doesn't give a clou from the outside at all!
He didn't cut anything on the front, just put the radiator behind the stock (slotted, the us-airco-version) front apron...Looked very slick!
Trans was a 915 with a manual (non hydraulic) clutch...

Greets,
Walter

[Racelook]

Lot's of suc6..

I hope you stick to your plan, and are not somebody with an big mouth spreading your big plans and than over an year hearing that your selling your half finished projects that still is an messed up bug with nothing.

Sorry to say.. but this is what happends so often.

Keep up the good work

Wiebrand