evo 9 hillclimb build log
I will have to pull it apart now and verify whether or not it is a 1way. Our feels like it has a very high pre-load. Unfortunately I did not purchase the differential so I am not 100% on how it was setup.
I have a second differential case coming so I can do some testing with both, I will pop it out and look it over at that time.
Back to on topic, Hillclimb, evo, cool stuff, GO!
Zack
I have a second differential case coming so I can do some testing with both, I will pop it out and look it over at that time.
Back to on topic, Hillclimb, evo, cool stuff, GO!
Zack
made it back over the the Maryhill HIllclimb this weekend. after getting more front end bite dialed in at UMC last weekend we were excited to see some relative back to back testing since we were at Mary last month.
For reference the previous hill record to last year was a 158. last year and last month we did 156.8. The first run saturday afternoon was a 156.1! since we started with mostly cold tires we had a fairly conservative setup. second run had more heat and car wasnt too loose so we added compression in the rear. dropped to a 155.0. third run bryant gave me a couple shift location pointers and i worked on holding the line - got a 154.6! super stoked to reset the hill record by 2.2 seconds.
one interesting point - we didnt increase HP and the trap speed was the same as our previous runs ... it was the mid corner speed that increased.
im still learning the grip limit so the throttle is a but choppy feeling it out.
"https://www.youtube.com/embed/TtuZ_iPcRns"
For reference the previous hill record to last year was a 158. last year and last month we did 156.8. The first run saturday afternoon was a 156.1! since we started with mostly cold tires we had a fairly conservative setup. second run had more heat and car wasnt too loose so we added compression in the rear. dropped to a 155.0. third run bryant gave me a couple shift location pointers and i worked on holding the line - got a 154.6! super stoked to reset the hill record by 2.2 seconds.
one interesting point - we didnt increase HP and the trap speed was the same as our previous runs ... it was the mid corner speed that increased.
im still learning the grip limit so the throttle is a but choppy feeling it out.
"https://www.youtube.com/embed/TtuZ_iPcRns"
got some cool coverage from the guys over at camautomag.com !
http://camautomag.com/nasa-utah-round-7-write-up/
http://camautomag.com/nasa-utah-round-7-write-up/
kind of curious why you didn't cantilever the rear wing further back? Would seem like cleaner air, and a bit better leverage on the high speed, possibly allowing you to reduce aoa some. Perhaps too much intermediate speed downforce sacrifice doing that ?
Last edited by 211Ratsbud; Dec 1, 2017 at 06:03 AM.
Dont know about Carl, but I dont mount my wing higher or further back because its just more leverage lifting the front. Looks like its current location would have it in pretty solid clean air.
btw was there a matrix of aoa vs drag you referenced in setting up?
we did talk about dropping it a bit and moving back 6" to lower the AOA and increase efficiency as mentioned about but got nervous changing too many things at once.
















