I think i found a evo 3 engine in a dsm today... help

screemin eagle · Post by **screemin eagle** » Thu Dec 13, 2007 10:51 pm

nope thats definetly a stock 95-96 2g dsm 7 bolt. they had a cam trigger and crank trigger. 95 &96 were on the intake cam gear. then 97-99 they went back to the oposite side of the head like 1gs

cali · Post by **cali** » Sun May 11, 2008 2:09 am

quick question i just got my hands on this entire motor from a gsx...would there be any cons to using this motor as to using a 1g motor or a 97-99?

screemin eagle · Post by **screemin eagle** » Sun May 11, 2008 10:14 pm

yeah crank walk

cali · Post by **cali** » Mon May 12, 2008 3:22 am

besides the obvious lol..im rebuilding the motor anyways...what about the head though? im assuming not having the CAS on the back of the motor is a benefit?

worse case i'll just get me a wideblock '64 and throw this head on there?

screemin eagle · Post by **screemin eagle** » Mon May 12, 2008 5:52 pm

honestly if your gonna waste your time with a 7bolt motor then you should go with a 92-94 short block with the 95-96 head this way you have less of a chance to crank walk and you can run the 2g style cam and crank triggers.
your gonna have to run a 2g engine harness too. ive found 7 bolts when they run good to be a great street car motor they rev much faster than a 6 bolt and seem to have a broader power band. this is stock 6bolt for stock 7 bolt with minor bolt ons.

cali · Post by **cali** » Tue May 13, 2008 1:17 am

screemin eagle wrote:honestly if your gonna waste your time with a 7bolt motor then you should go with a 92-94 short block with the 95-96 head this way you have less of a chance to crank walk and you can run the 2g style cam and crank triggers.
your gonna have to run a 2g engine harness too. ive found 7 bolts when they run good to be a great street car motor they rev much faster than a 6 bolt and seem to have a broader power band. this is stock 6bolt for stock 7 bolt with minor bolt ons.

i was thinking of doing so..i actually have an entire 95 gsx donor car and im grabbing everything i need from it (got the car for 500 so what the hell)

what i think i'll do is look for a wideblock 6 bolt and just use the head from this 2g along with the wiring, etc.

i've only had the starion for 2 months so im kinda new to all this so i appreciate any help to avoid any costly errors.

jeffball610 · Post by **jeffball610** » Wed May 14, 2008 11:16 am

The motor pictured is a 95-96 motor. The head is the give away. Look at the thermo housing and the valve cover. All JDM motors say Mitsubishi as far as I know. You can also inspect the oil pan to see if it has the indintation of the 7 bolt design.

There is no downside to the 7 bolt motor. Crank walk has been an issue, but you can walk a 6 bolt, so don't use that as an excuse. Also, the 7 bolt crank is stroger than the 6 bolt as well as having better main girdles. The head in stock form is also a superior design.

It is a fact that the rods are smaller and cannot handle the power of the 1G rods, but this is not typically a limiting factor on a good tune. Many people have made 400+whp on stock 2G bottom ends. And the increase in driveablility and power band is mostly due to the higher compression ratio of the 2G piston design.

If you have the chance to take the 2G wiring harness, do so. You can run an EVO 8-9 ECU and simply reflash the chip for tuning instead of messing with EPROMs and burning chips. The EVO ECU is also easier to obtain than the 2G EPROM. If this is a route you're interested in exploring, go for it. Some of us are stuck with 1G stuff that is cheap and easy to obtain, but is limited in future product development and support.

cali · Post by **cali** » Thu May 15, 2008 2:02 am

jeffball610 wrote:The motor pictured is a 95-96 motor. The head is the give away. Look at the thermo housing and the valve cover. All JDM motors say Mitsubishi as far as I know. You can also inspect the oil pan to see if it has the indintation of the 7 bolt design.

There is no downside to the 7 bolt motor. Crank walk has been an issue, but you can walk a 6 bolt, so don't use that as an excuse. Also, the 7 bolt crank is stroger than the 6 bolt as well as having better main girdles. The head in stock form is also a superior design.

It is a fact that the rods are smaller and cannot handle the power of the 1G rods, but this is not typically a limiting factor on a good tune. Many people have made 400+whp on stock 2G bottom ends. And the increase in driveablility and power band is mostly due to the higher compression ratio of the 2G piston design.

If you have the chance to take the 2G wiring harness, do so. You can run an EVO 8-9 ECU and simply reflash the chip for tuning instead of messing with EPROMs and burning chips. The EVO ECU is also easier to obtain than the 2G EPROM. If this is a route you're interested in exploring, go for it. Some of us are stuck with 1G stuff that is cheap and easy to obtain, but is limited in future product development and support.

this is great info! i took out the entire wiring including the ecu (still have the entire car) i had no idea i could run an evo 8 ecu...(have plenty of experience with it...my 01 galant is running an evo 8 ecu that's been flashed)

my only concern now is mating the narrow block to the tranny...i know my options but would rather keep the starion tranny.

jeffball610 · Post by **jeffball610** » Fri May 16, 2008 2:27 pm

I have no experience with the Starion tranny, but everyone I know seems to feel they shift like a truck transmission. I also here they are not reliable above 400hp. Maybe all of this info is wrong, but just what I've heard. I'm sure DJ or someone has some good info to add. Also, you might be able to sell that trans and get yourself a Toyota unit and Bill's bellhousing without being out much cash. Toyota units are cheap, have lots of aftermarket support and can handle a good amount of power. A lot of this depends on your budget and plans for the car. Maybe make yourself a Pro/Con checklist and see which column wins.