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914World.com _ 914World Garage _ GM's Turbo 4 Cyl engine

Posted by: flmont Aug 11 2020, 10:35 PM

Does anyone have any experience with this engine, a twin screwed 4 cyl turbo used in the Solstice and the Saturn Sky the 2 seater's sports car.. rated at 260 HP, Thanks, Frank

Posted by: Mark Henry Aug 12 2020, 05:55 AM

My son has a 2007 cobalt SS, 2.0 supercharged LSJ engine, 210hp.

Typical GM engine electrical/sensor issues, weak coils, dealer service is useless. I believe the turbo engines have simular issues.
Saab trans is OK but weak if you abuse it, that's if it has the F37.

Lots of go fast goodies https://zzperformance.com/collections/kappa

Posted by: Mueller Aug 12 2020, 09:43 AM

A member here just put one of those engines in his 914, should be good for 300+ hp.

I have a co-worker that builds these Ecotec motors, he recently bought a CNC mill that is large enough to put the block on the table to bore out the old liners for custom cylinder liners.

Posted by: brant Aug 12 2020, 10:28 AM

Neighbor has a cobalt drag car with this motor
but over 400hp

Posted by: flmont Aug 12 2020, 02:33 PM

Mr. Mueller, So it fits a 914..nicely... or do you know how well that install went ? Thanks,. Frank

Posted by: 1adam12 Aug 12 2020, 02:39 PM

I believe Rhys Millen was the first to modify one of these engines when he campaigned a Solstice for Formula Drift way, way back. I remember him saying that the engine was capable of doing 500+ but I can't remember all the details from that convo. Try and find his build online, should be a few features on it.

Posted by: Mueller Aug 12 2020, 02:47 PM

He might have more pictures, this is the only one I could find right now:

http://www.914world.com/bbs2/index.php?s=&showtopic=159774&view=findpost&p=2678927

Posted by: flmont Aug 12 2020, 02:50 PM

+ Thanks Guys..!!

Posted by: Mark Henry Aug 12 2020, 02:54 PM

If you look many a baja bug and sand rail owner has used the ecotec engine, one of the big reasons is it doesn't weigh much more than a type one engine. IIRC it's about 250lbs dry.
KEP makes an VW trans adapter for it.

Posted by: flmont Aug 12 2020, 05:51 PM

Thanks Mark..I was just about to go there and look for it..T.Y,.!! Frank