Mark's 1G Winter Projects - Page 42

turbotalon1g · 03-13-2016

Love it.

**Murlo26** · 04-03-2016

Industrial style EStop, nice touch

turbotalon1g · 04-04-2016

do you have a t case brace?
They seem to stop twisting/side shifting of the t case issues.

turbotalon1g · 04-04-2016

Oh dat yoke doe!!!
sexy

Mark Leasure · 06-14-2016

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.

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.

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.

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

This weekend should be awesome!

MorningWood · 06-15-2016

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

**asshanson** · 06-15-2016

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.

Mark Leasure · 06-15-2016

Quote:

Originally Posted by 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.

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.

turbotalon1g · 06-15-2016

Congrats!
Good luck this weekend!

**Halon** · 06-15-2016

Very cool, congrats on the numbers!

**goodhart** · 06-15-2016

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

DSM MN · 06-16-2016

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

**goodhart** · 07-05-2016

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

Mark Leasure · 07-08-2016

Thanks for asking. Results:

First goal achieved - trap speed over 170 MPH. The car ran 170.88MPH @ 9.33, super bad 1.89 60 foot.

I only got 4 passes in all weekend, 2 were aborted due to a poor launch in time trials and to me red lighting in the eliminations (Loosing).

Also, I broke a vibrant IC clamp at the top of third gear, on what would have been my personal best pass to date. I ran 5.7 second 1/8 mile time!

The best news is that the car went on the trailer running ready for the next event! I also figured out the anti lag so it is way better, the clutch is a new learning curve since I changed the engagement height. I learned a lot from my bad launches too.

turbotalon1g · 07-08-2016

Holy crap balls! 170!!
Congrats man!
Any plans to hit that grudge race this Sunday at RFR?
I'm going to spectate

Mark Leasure · 09-13-2016

Last weekend didnt go well. I lifted the head on the first pass...due to driver error. I bounced off of the rev limiter in 3rd while watching my boost gauge -fail.

A couple of videos from my archive, including my first 8 second pass.

http://www.youtube.com/watch?v=oxxfxd6EpAA&hd=1

http://www.youtube.com/watch?v=qzPrGBjDANQ&hd=1

http://www.youtube.com/watch?v=H1Epgt7nGK8&hd=1

Next year will be better!

**goodhart** · 09-14-2016

Good to see you as always Mark, sucks about the head lifting! Get that rev limiter raised now before you forget

turbotalon1g · 09-14-2016

170! hot damn.
I like the "oh my god" in the first video.

Mark Leasure · 12-25-2016

I scored a set of new 15" volk te37's recently. Present to myself this year! Super lucky to find them new as they are discontinued. I found a dealer that had them in inventory in the US, it took lots of messages to dealers and searching. They are 10lbs per wheel!

I also made a change to a new 90mm throttle body, 3.5" ic piping' and hd vanjen clamps.

I'm excited for the race season! More updates to come.

Dark2g · 12-25-2016

Merry Christmas to you! That's so light and they look great. Your slicks still have lots of life?