Light weight C5Z
#62
Supporting Vendor
Thread Starter
C6 ZR1 with larger ZR1 axles. Direct bolt in. There will be a write up on that here soon. Absolutely impressed with the system and its ability.
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GSpeed C7Z Cooling Development
2014 NASA Texas TT1 Champion
2015 NASA Texas ST1 Champion
2018 NASA TTU & TT3 National Champions
2019 NASA ST2 National Champion
2019 NASA Texas TT2 Champion
2020 SCCA Majors COTA GT2 pole sitter
2020 SCCA Trans Am Road Atlanta SGT Winner
2022 NASA National Champion ST2
2023 NASA National Champion ST2
2023 NASA National Champion TT2
"Keeping You on Track!"
http://www.gspeed.com
877-512-5180
Instagram_Facebook_YouTube
GSpeed C7Z Cooling Development
2014 NASA Texas TT1 Champion
2015 NASA Texas ST1 Champion
2018 NASA TTU & TT3 National Champions
2019 NASA ST2 National Champion
2019 NASA Texas TT2 Champion
2020 SCCA Majors COTA GT2 pole sitter
2020 SCCA Trans Am Road Atlanta SGT Winner
2022 NASA National Champion ST2
2023 NASA National Champion ST2
2023 NASA National Champion TT2
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Shortcutsleeping (08-21-2018)
#63
Supporting Vendor
Thread Starter
Pretty important part came in today. Delighted to say it was .2 under our target weight of 16lbs. MOi should be very nice with this in addition to the improvement in shifting.
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Shortcutsleeping (08-21-2018)
#64
Supporting Vendor
Thread Starter
This is not anything tilton offers in a package form. After some research and taking measurements, we have all of the parts including the release bearing. Cost is just over 1850$
Things you can do, or not do wit this unit:
Things you can do, or not do wit this unit:
- Dont drive it in the trailer
- keep starts and stops to a minimum
- do not slip it much
- its better to spin the tires than it is to slip the clutch
- saves 44lbs
- run at your own risk
- Idle will need tuning
#65
Former Vendor
Great work guys!
#67
Supporting Vendor
Thread Starter
Had a little excuse to put some more light weight parts on. The best kind! Rotational, unsprung! A nice 7lb drop. Not too bad!
Last edited by GSpeed; 06-28-2018 at 03:47 PM.
#68
Pro
#70
Supporting Vendor
Thread Starter
They asked me to add a 1" lip on the bottom of the top side of the splitter to define the "air dam"
We moved to TT3, so it doesnt matter. As for it being "illegal" sure, if it was run that way in competition, however it wasnt.
We moved to TT3, so it doesnt matter. As for it being "illegal" sure, if it was run that way in competition, however it wasnt.
#71
Race Director
do you prefer Tilton over the off-the-shelf Quartermaster 5.5" setup? It looks like the weight would be very similar. I keep running the same thing as it has served me well, although a lot of people seem to like the 7.5" rally setup
#72
Supporting Vendor
Thread Starter
We have a really good relationship with Tilton, and thus use them exclusively. They make a race 7.5", and a race 7.5" with a 160T flywheel so you can lower the motor and not have the fllywheel be the lowest part.
I have no objections with QM, but they are not my go to clutch company.
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Shortcutsleeping (08-21-2018)
#73
Supporting Vendor
Thread Starter
Costas dropped this off the other day, no mistake the nickname has stuck lol
We decided to pull the ls6 and put in an LS2, but upon tear down of the used ls2, we realized we had a bigger problem. A simple short block change has snowballed, lucky our engine partners at Horsepower Research are able to get us going with a new Trans Am spec ls2. Why trans am spec? Well, more to come on that later. We will still have to define to 280hp again, so it doesn’t much help for NASA, but future plans made this engine a no brainer.
This was the broken ringland bore, at .005 over. Ugh. Had to take it all the way to .010 over. Be careful buying used engines. Thankfully we opted to tear it apart and clean before install, and this is exactly why.
Wiseco shelf piston, stock cube, slight dome, 12:1 compression.
The following 2 users liked this post by GSpeed:
HP RESEARCH (08-06-2018),
Shortcutsleeping (08-21-2018)
#74
Supporting Vendor
Thread Starter
Making a buck for a diffuser. We were about 6-8mph down on top speed, largely due to the lack of power. However we had a lot of wing in it at COTA, and we should pick up 2-3 mph from this diffuser, and being able to remove some wing.
New splitters- added 3” (7” total now) and have some spares. We hope to have a carbon version for testing in a few weeks, as it has indicated it will save just shy of 16lbs.
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Shortcutsleeping (08-21-2018)
#76
Supporting Vendor
Thread Starter
This is a nice surprise. Centrally located heater box, but high and heavy!
The following 2 users liked this post by GSpeed:
crimlwC6 (08-11-2018),
Shortcutsleeping (08-21-2018)
#78
Supporting Vendor
Thread Starter
#79
Drifting
Why not do exhaust through the license plate area to push air under the splitter and above the diffuser?