I'm still using the mini-catch can described on the site but it's not working for me. When the oil level is about mid-dipstick I get a big puff of blue ingestion smoke in Turn 9 at Summit Point (long, high speed right hand sweeper). The oil is either going through the large vent line that runs from the front of the valve cover to the intake (before the throttle butterfly) or it's simply running right through the small water separator I'm using. I suspect the separator is too small so I'm going to try a large one. Matt has the same setup but uses a larger separator and he collects oil after every track session. He unscrews the glass collector and pours the oil back into the engine. I did upgrade the lines from the too flexible clear lines shown in the pics to more ridged fuel lines.

 

I was hoping for some gratuitous sawzall action shots, or at least some grinder action. Nice work!

 

Thanks for the write up! I plan to do this next winter for either HC or PT with NASA Great Lakes. Some great info and pics there that will be super helpful during my TT-to-racecar conversion!

 

Good write up! I thought that the rear uprights for the cage were not supposed to go further rearward than the rear most suspension point though? Also, for mounting the harness on the outer edge, did you simply use the stock point? Or did you do something different. I ask because my harness is currently is the stock location on the outside but the angle isn't right as a I'm short 5' 6" with shorter legs, normal torso and sit fairly close. The Schroth Hybrid ii that I use gets snug but will not get TIGHT on the lap belt.

 

rob, i noticed on your recommended parts list, you put aftermarket wheels in the middle. i was thinking of doing this as my first mod to my AP1 wiht some 17x9 +63 all around with RS-3 or Star Spec tires. what do you think?

 

Rob, thanks for making your website! I've used it a lot over the last few months and plan on referring to it a lot in the future. I just saw the harness install instructions you have posted, which will save me a lot of trouble!

 

thx for the effort !!!

 

Nice write-up Rob. I've learned a lot preparing my car for road racing as well, especially when it comes to adding a fuel cell and what happens when you eliminate the instrument cluster and factory ECU.

Re: catch cans, I've had a good experience with the Stealth model from 42 Draft Designs. Installation was a bit of a pain because the ports on the catch can are WAAAY bigger than the ports on the head. I had to buy 2 reducer/adapters to make it work.

But it does collect about ~1qt of oil every 160mi of on track driving. I empty it every other session.

 

Cracknut, do you have your catch can attached to the pcv valve line or the large line at the front of the valve cover? I have seen both.

 

There's no problem with going with larger wheels & tires early. I'm running 17x9 +63 255 with Nitto NT01s all around so I like that size and I've heard great things about the Star Specs.

I don't know of any limitation on the rear roll bar attachments, I think the further to the rear they are the safer the cage. The rear supports are welded to the X-Brace frame beams.

I am using the outer stock seat belt mounting hole.