1991 3.2L w/ S1 cams

[Yamaha V6]

Howdy, been awhile since I've been around.

I had a free afternoon & curiosity was getting me on what my 91's 3.2L was doing, so I did a couple of pulls today; thought I'd share.

Green: my '84 911, recent baseline prior to getting a new chip.
Red: my current 91 SHO, 3.2L w/ S1 cams (not degreed), custom porting on the intake runners / cylinder head inlet ports, Summit Racing Y-Pipe w/ cats, STOCK VALVES, STOCK MAF, NO CHIP OR TWEECER.
Blue: my old 91 SHO with (insert pretty much any mod here).

214 hp / 201 lb-ft, I don't think that's too shabby. I have no plans to MAF or TWEEC, just thought I'd share.

Now, here's something else, dunno if you guys have discussed this at all here or what.

I have lost about 6hp on the 911 over the past 2 years, which I'm pretty sure is because of the introduction of Ethanol instead of MTBE here in New England since 4/06.
Ethanol is about 30% less energy per unit as gasoline, per the always-correct Internet. 10% Ethanol would be about a 3% drop in power potential in the fuel.

Previous 911 runs: 203.5hp, current, 198hp. 240hp * .85 = 204hp.
Current run: 240hp * .97 = 233 hp; 233hp * .85 = 198hp

This concurs with the numbers I've gotten on the dyno.

So, with non-Ethanol fuel, this setup MIGHT make

Current: 260hp * .97 = 252.8hp; 252.8hp * .85 = 214.3hp
Non-Ethanol, 260hp * .85 = 221hp

YAAAAAAAAAAAAAAAY Ethanol!!

Y'all have a great weekend.

 

[adidas_kn]

Looks Good! I can't wait to take my newly aquired 89' to the dyno to see what it's 10.6:1 3.3L with 80mm maf, extrude honed intake, BBB's, gasket matched heads, catted y-pipe, custom catback, and soon to be programmed SCT chip will make with its stage 2 clutch and light weight wheels.

Hopefully with the bumped compression and supporting mods it will put at least 230 to the wheels. It comes with Stage 1 SHOshop cams and tweecer but I don't think I'll install those 4 awhile.

Thanx for sharing.

 

[Yamaha V6]

Here's another group,

Current 1991 3.2L, Former 1995 3.0L SHO Shop Stage 1 kit, Former 1991 3.2L blower engine w/ S2 cams (w/o blower & supporting pieces - 55mm MAF, stock injectors, etc.)

 

[PAracer]

Good to see you around, Fred!

 

[GASHOGUY]

Hey Fred! Glad to see you're still around. How many BFG KDW's have you blown the sidewalls out of since my comment at Blackhawk?

 

[Yamaha V6]

Hahahahah! Larry, I haven't run the KDW since, and have turned everyone I know off of them.

I'm running Kumho MXs now for streets, but I did run my Toyo T1-S's as rains at Road Atlanta instead of the V700's.

Nice to hear from you!

 

[GASHOGUY]

I'm actually heading up to Road Atlanta this weekend, BMWCCA is running. Sold the track car, so going up for track rides, the repaving is done. Rumor has it 3-4 seconds a lap quicker.

 

[Yamaha V6]

The Porsche guys are mixed on it, some like the new surface, others not so much. Have fun, be safe. Last time I was there they airlifted a guy out & he was smoother than you (j/k!).

 

[SHO Dude]

I'm actually heading up to Road Atlanta this weekend, BMWCCA is running. Sold the track car, so going up for track rides, the repaving is done. Rumor has it 3-4 seconds a lap quicker.

Would love to be there as well. Still have to get the Quaiffe installed in the track car. 1:52's in the '90 on Victor Racers and Cobra brakes. We'll just have to see.

New paving is supposed to make turn 1 a no-lift turn and the Esses WFO too.

Wonder what's gonna be different with a rain soaked track?

 

[Yamaha V6]

Saw that Barber will be running things instead of Panoz at Road Atlanta, huh? Wonder if the Track Days will continue under the new management.

 

[PAracer]

Plus, we should have another track to run in NJ this time next year. These are exciting times we live in.