Motor is being mocked up now, here are the basic specs:





4g64 block
Billet Brian Crower 102 mm crank
CP custom pistons, 87.5 mm bore 10.25:1 compression
Manley rods
ACL race series bearings

Look for dyno graph soon, this is going into the SBR EVO IX rally car next week for Oregon Trail - Look out Subaru - this is not the 2.1l we ran at 100 acre wood!

Remember, the dyno graph will be a TME 15G turbo, with a 34 mm restrictor - shooting for 460-480 ft/lbs at the wheels.

If this motor works well, we will be building a production version for EVO VIII and IX this summer.

Any questions about the motor set up, or the previous motors in the rally car welcome, please lets keep this on topic

Mike Huml
SBR Inc.

 

2.5 litre... pretty cool.

I really would like to know why AMS and Buschur stay away from selling 4G64 blocks... like 2.4, 2.1 etc. The idea of using the taller block seems logical to me, but maybe there is a reason they don't like it.

 

We have been using the 4G64 block for years with a good bit of success, and will continue to do so. It worked well in the 2.1l we ran at 100 acre wood rally, and I am sure will be fine in this configuration as well.

Taller deck height, bigger bore, seems logical to me as well

Next month I am building one for my daily driver, but with 106 mm billet crank - that should be interesting!

Mike Huml
SBR Inc.

 

Ekk did you have to mill the crank ? i had to send 3 cranks back to Brian than we ended up chamfering the bearings
We also had problems with the Manley rods

 

No problems what so ever with the crank, however it is designed to use with a chamfered bearing, which the ACL race series is.

I have never had an issue with the Manley rods, and can safely say we sell more Manley Mitsubishi rods than anyone, and have never had one issue that I am aware of.

A note of caution however, the EVO/ DSM 7 bolt Manley rods are designed to work with the 6 bolt rod bearing, the BC crank is designed to use with 7 bolt rod bearing. We had rods made by Manley to work with this crank, and use with the 7 bolt rod bearings.

Hope this helps, sorry you had issues along the way with yours!

Mike Huml
SBR Inc.

 

AMS and Dan Bajalis both use 2.1l motors.

 

Hmm they claim is a 2.0 L or so I've heared....

 

Ahh well
Im glad your build works for ya!

Brian is a good guy and hes sending me some new 288 cams to try out
O and we used the ACL bearings Brain sent with the crank but ended up chamfering them for whatever reason

 

What is the planned redline for this setup? This should be one hell of a stump-puller!

 

Best of luck at Oregon Trail, hope to see SBR/ACP at the top of the podium!

 

Let us know how the cams work... can you say what type of lift those bad boys will have?

Site is looking good, and big props with going down a different path with the E85!

Mike Huml
SBR Inc.

 

Wow, this should be interesting, I want to see dynographs..

 

HEHE - with the restrictor, we will only see about 6k.

If it works well in Oregon, I will build one for the street car and get some good data on a GT3076R. I would assume in this application 8-8250 would be reasonable.

Mike Huml
SBR Inc.

 

Even getting on the podium is a good day at the office this year Lot's of incredible cars - and the competition is amazing, ACP will have his work cut out for him!

Thank you!

Mike Huml
SBR Inc.

 

10.25 : 1 compression on a turbo car, what range of boost and rpms?

i thought for our cars, we shouldnt go past around 9.5:1 as it limits our range....although you would make more power on less boost...is that the thought?