I'm here to once again call upon the collective evo mind for peoples thoughts, insights, and exsperiances with internals.

I'm looking to build an engine with a capacity of 650-700whp on leaded fuel, around 30psi.

ive talked to the guys at MAP and here is what i have so far.

Wiseco 1400hds pistons (9.5:1 OR 10.0CR, thoughts?)
L19/h11 studs
MAP I-beam rods
Cosworth head gasket
ACL Race Bearings
Gates Racing Belt

thanks for the input guys!

 

From what I have read, just stick with the factory Mitsu head gasket.

 

+1 on the OEM headgasket.

 

^^^^^ y?

 

The aftermarket ones require the head to be mirror finish smooth. The stock one is more forgiving and there is no reason to use an aftermarket one, unless you need it as a slight spacer from shaving your head too much. The parts you listed sounded fine though. Hell, I know somebody that is pushing close to 700whp with eagle rods and JE pistons. No issues so far and he drives it a lot and tracks it pretty often.

 

^^ i see what you're saying...but building a high HP motor requires precision..so having a mirror finish on your deck so you’re able to run a stronger gasket in there, doesn’t seem like a big deal to me...since you have to machine the block for main studs, hot tank, hone....etc anyway.

 

Yea, just saying that if the metal had any imperfections in it the stocker would probably do a little better and stock head gaskets have been used on cars making more power than what you are looking for. If it isn't broke, don't fix it until it is.

 

+1 Stock Gasket, I would also steer you away from the Race version of the bearings, unless this is a track only build.

 

Oem head gasket, I would go with acl race on the rod bearings but steer towards aluglide main bearings. Also, check into Mahle or Manley pistons as other options

 

Wiseco 1400hds pistons (.20 over) 10.5:1
And i would just go with Maney Turbo Tuff Rods

 

I'd use the OEM timing belt and A1 studs, which are substantially stronger than the L19, are reusable, and don't cost a lot more (MAP has them).

Wiseco 1400HD are fine. CP are even better. I'd stay away from JE's myself, although others like them. As far as CR goes, it depends on what you are planning for fuel. E85 10:1 are better. Pump gas, say with the 9.5:1.

 

whys that?
from what i've read, the "race" barrings just have a higher load capacity. whats the downfall of them?

i am just purely curious here!

 

from what i can dig up, A1 is just a company but they use the L19 material...is this incorrect?

 

why go .20 over?
the motor is still good so if the cross hatch in the sleeve is still clean then i'll do a quick ball hone run from there.

any reason to pick those rods over the MAP pieces?

 

what do you guys think of using an AL rod? I like the huge reduction is mass and with the car only seeing 3-5k miles a year, they should last a decent while.