Doesn't seem complicated. Just read it. 100UL. No knock control on a Motec? Since I don't have 5K to buy one I'm somewhat unfamiliar with what's included. If any computer does not include knock control, I'd be keeping the octane in the "super safe" range, too, I guess... The boost levels are pump gas range, though, if your timing is adjusted...

BTW, I got almost 40 miles to the gallon last year for a 40 mile run. Yep, from the Continental Divide to Morrison, Colorado. Never dropped below 80, either.

 

i've done that too heading back from winter park last summer in the evo. but your mileage going down STEEEP hills is obviously going to be better then going back up the hill (prolly around 10mpg).

here in DFW there aren't mountains to drive down though, so 36 mpg over the course of a tank here is just not possible with an evo driving normal (and by normal i mean you can accelerate as slow as you want, but at 70mph, your not getting 36 mpg period.

and Groc,

metros weigh half as much, much less rolling resistance, less drivetrain friction, and most likely a better cD (much smaller profile, and evo is not even remotely aerodynamic), yet a metro is barely going to get 36mpg at 70mph. can a metro even go 70 mph?

 

How about this. If Robert is running 100 octane, just say it, don't hint around with "UL" that 99% of the people on the forum might not understand.

Don't call me out for trying to clear the air. You and Robert are "hinting" more than I am. Don't think that just because you work at the company affords you immunity from the masses.

Just answer the question for the masses. 93 octane or higher for the 124 traps?

I'll say 100 octane UnLeaded until you tell me otherwise. I do think that everyone was thinking this was done on pump gas. Using motec without knock control should not be a scapegoat for misleading everyone.

God forbid a FP turbo gets tested on less than race gas before being released to the public...

 

Day 28 and counting.......its been 4 weeks now.

I think your going to lose this bet partner

 

Amazing, and it was said they had 15 ready to go...

 

They already started shipping some of the first 15 turbos... now it depends on your position in the waiting list...

The test was done at 25 psi, 100 oct won't give you 100 bhp at this boost level!
Trent's car made 30 whp more on race gas when compared to 93 octane, not to mention the race gas tune had 8 psi more than the 93 oct. tune...

Furthermore, the motec has no knock control, maybe the extra octane was used for safety???


Elie

 

The FP Red turbo has a non-HTA compressor wheel doesn't it?

 

I think the Green has a non-HTA compressor wheel.

The Red has an HTA compressor wheel.

 

Cool, and thanks, COVR 4. I was hoping that it was non-HTA, which would leave the door open for an even faster spooling HTA Red version in the not so distant future.

 

My pops had a bright red metro convert, they will go 84 wide open on a very long stretch of flat or down hill road. Maybe the hard top does better? Oh, his was hevily modded with a Suzuki Bandit muffler and open air filter and and and... water injection milage? he used to get high 30's from Dallas to San Ant.

 

You're right that the current FP Green has the standard 5-bladed non-HTA, "White Rabbit" wheel. Remember that FP designed the 1mm smaller HTA wheel now used in the FP White for the ill fated HTA Green turbo, but it didn't interface well with the higher mass, "LT" turbine.

 

I think it's pretty important to be forthcoming with the mods/boost/octane/race weight etc.... to help people make a wise purchasing decision based on someone elses e.t./mph/dyno numbers.

 

It still seems unclear whether the red will outperform the green without either very high boost and/or exotic supporting mods.

 

Agreed, Chris! I am wondering whether Robert's car was running a 93 octane tune and they just threw in the 100 unleaded as a precaution against possible detonation, given the prevailing test conditions, the record Texas heat, and the fact that the MOTEC has no knock control.

The boost levels were a safe 25#, which is a pumpgas boost level attainable even with a stock IX turbo on 93 octane. I look at the use of the 100 octane fuel in this particular case as merely a safeguard against destructive detonation.

In fact, and you would know this better than most, for sure... if a car is tuned for 93 octane pump gas and you just throw in 100 octane unleaded without retuning for the different characteristics of the new fuel, doesn't it give less than ideal AFR's? Won't the 100 octane fuel's different specific gravity, density and burn characteristics throw the tune somewhat off?

 

depends on the fuel used but yes simply adding race gas on top of a pump gas tune is likely going to have you very rich.

with my evo when it was tuned to 11.5:1 on 93 octane if I put in c16 it would drop to 10.5:1 area and flat run sluggish if the AFR, timing and boost weren't adjusted to take advantage of the better octane.