Mark's 1G Winter Projects

[turbotalon1g]

Oh dat yoke doe!!!
sexy

[Mark Leasure]

The last trip to the track wasn't very fruitful. My clutch slipped and banged off of the rev limiter under lots of boost. It blew the head gasket. I also found out that my drive shaft has harmonics issues. And I inspected the head I found it bent all the exhaust valves.

It's been a busy month:

I remove the single piece driveshaft and sent it back to DSS so they could turn my one piece shaft into a two piece.

http://i412.photobucket.com/albums/pp207/Wicked_EE/20160609_210245.jpg

They did an awesome job, and barely charged me anything to split the shaft.

I sent the cutch back to tilton, I figured out I had a setup issue that caused the diaphragm spring in the pressure plate to slowly lose its clamping force. That's all fixed now.

I remove the mechanical water pump and converted to an electric and I'm now running waterless coolant. I drove it on the very hot weekend on the freeway and it stayed cool.

http://i412.photobucket.com/albums/pp207/Wicked_EE/20160527_185039.jpg

Special Thanks goes out to MAPerformance, Eric rebuilt the cylinder head with meticulous detail. Also thanks goes out to the whole crew that help me out while on the dyno, Jake helped me strap it all down securely. I blew an intercooler weld on my ets unit and Tim help me weld it up. I ran 4 pulls, the first 2 were partial pulls. The last pull is below, ignore the dyno wide band reading.

http://i412.photobucket.com/albums/pp207/Wicked_EE/20160614_152429.jpg

The boost peaked at 50 and dropped to 48psi. With a safe 11.6 afr.

This weekend should be awesome!

[MorningWood]

Woot woot! Glad it worked out for you today, I can't wait for the weekend!

[asshanson]

Wow that's awesome power. Curious why you had vibration issues with the one piece driveshaft, was it because of the angle? I don't know much about DS technology.

I've heard great things about the waterless coolant. Expensive, but nothing compared to the cost of a race car setup. I'm surprised it ran cool, most say it runs hotter on the street, but since it doesn't boil it actually takes more heat away from the motor at very high temps, which is great for the track.

[turbotalon1g]

Congrats!
Good luck this weekend!

[Mark Leasure]

Wow that's awesome power. Curious why you had vibration issues with the one piece driveshaft, was it because of the angle? I don't know much about DS technology.

I've heard great things about the waterless coolant. Expensive, but nothing compared to the cost of a race car setup. I'm surprised it ran cool, most say it runs hotter on the street, but since it doesn't boil it actually takes more heat away from the motor at very high temps, which is great for the track.

I'm no driveshaft expert either. I know a little bit about harmonics and the frequency domain from my engineering experiences.

The symptom I experienced was a bad vibration while slowing down between 105 to 100 mph. Otherwise no issues on acceleration. I spoke with an engineer at DSS and it doesn't violate critical speeds, but weird harmonics can happen when you have high durometer poly mounts on the engine and rear end, or if they are hard mounted.

Now it is silky smooth with 2 pieces.

[Halon]

Very cool, congrats on the numbers!

[goodhart]

Awesome! Can't wait to see it this weekend!

[DSM MN]

Almost 1,100 AWHP, not bad for a 4 cylinder! Car has come a long ways, good work Mark.

[goodhart]

How'd you end up doing at Show n Go? I never seen you again after Friday!