When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Changing fuel changes classes fro racing. You cant say pump gas. Its like FI is a different class to race in. Would you still consider it the same a a stock bolt on car in the tens if it were not running a street fuel? Or is an octane boost not the same as not pump gas? Its just a point to consider.
I would run it personally if I needed it. My small N2O shot is fine on 93 with my tune.
On my turbo'd Subaru tuned for 93 octane in Atlanta, I started seeing more boost after my electronic boost controller (in learn gear mode) "learned" to reach optimum boost levels in each gear. I have a knocklink indicator and started seeing more moderate and hard knock. After adding some Torco to my gas (8 oz to around 10 gallons) I reduced and sometimes eliminated all knock. 16 oz for a full tank (15 gallons I think) easily cured all knock and made my car highly illegal under boost.
I came over a hill under boost just getting into third gear and thought I was going to jail when I saw the motorcyle cop. I immediately slowed, pulled over and said "yes sir" at every opportunity, admitting I was guilty. He said "I wrote you for 15 over so you don't have to go to court". I was doing 30+ over in a 55 mph zone (no other cars) and Alabama math being what it is I actually was written up for 13 over.
Anyway, the Subaru pushes 22+ pounds of boost and I don't drive it as of late because the octane here is junk and I don't have the equipment to put some Torco in it (recently retired Air Force and all my stuff is in storage). I have a few gallons in a five gallon can I brought with me and as soon as my goods arrive (next week) I'll definately be adding about 16 oz to 10 gallons of what passes for "91" here. I'd be suprised if it's even 89.
I like the Torco and the knocklink and other gauges tell me it's doing the job. I have EGT, oil pressure and temp, wideband O2, boost X 2, injector duty cyle, water temp, and knock gauges/sensors so I definitely monitor everything. Except for the knock and wideband the gauges all have memory for playback as well.
San
Last edited by oldmansan; Jan 17, 2008 at 12:58 AM.
Reason: Spelling
Changing fuel changes classes fro racing. You cant say pump gas. Its like FI is a different class to race in. Would you still consider it the same a a stock bolt on car in the tens if it were not running a street fuel? Or is an octane boost not the same as not pump gas? Its just a point to consider.
I would run it personally if I needed it. My small N2O shot is fine on 93 with my tune.
thanks spin now im back on the fence. what are your thoughts on how much hp you could make by tunning for a couple more points in octane with the stock compresion we have ls2 and ls3