997.1 Cobb Tuning, Champion 68mm VTG, and CORN!! - Page 6 - 6SpeedOnline

Apr 9, 2015 | 11:04 AM

#76

Tiago

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Quote:

Originally Posted by The Bogg

If I had that kind of access to e85 I would never use pump gas again!

I had no issues with my Proto 93 tune with both stock vtgs and 63s.

The Cobb 68 tune is awesome though. Super smooth and holds boost all the way up. I think the next tweak will be to the timing curve as I think we are at the max boost without timing being pulled at all.

I did 3.1s 60-100 starting at low 50mph in 3rd gear. It was just for fun. With gentle slope and lower starting speed it would probably do 3.0 or maybe 2.9. On one version of the tune it did 2.69 and I can tell you that felt fast. I'm jealous you can get that consistently! That's where scary fast starts (around 2.7s)

Do you think that with 93 plus straight meth via WMI kit, you can achieve similar gains than E85?

Esmotor use this method to overcome the power loss due to their poor quality gas, only 91.

Last edited by Tiago; Apr 9, 2015 at 11:09 AM.

Apr 9, 2015 | 11:07 AM

#77

proTUNING Freaks

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Quote:

Originally Posted by Tiago

Do you think that with 93 plus straight meth via WMI kit, you can achieve similar gains than E85?

Esmotor use this method overcome the power loss due to their poor gas offer, only 91.

We tune all our cars with meth and have been doing so for years. Performance with meth will be close to E85 but it'll never be E85.

Apr 9, 2015 | 11:18 AM

#78

Mark @ AIM Performance

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Quote:

Originally Posted by The Bogg

I did 3.1s 60-100 starting at low 50mph in 3rd gear. It was just for fun. With gentle slope and lower starting speed it would probably do 3.0 or maybe 2.9. On one version of the tune it did 2.69 and I can tell you that felt fast. I'm jealous you can get that consistently! That's where scary fast starts (around 2.7s)

almost as fun as 2.4x on pump gas

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997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
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Apr 9, 2015 | 11:20 AM

#79

The Bogg

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Quote:

Originally Posted by prodigymb

almost as fun as 2.4x on pump gas

lol

showoff

Apr 9, 2015 | 01:14 PM

#80

rix

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Quote:

Originally Posted by prodigymb

almost as fun as 2.4x on pump gas

Any idea where ~140mph 1/4 mile trap speeds are in 60-100 or 60-130 times?

Apr 9, 2015 | 01:26 PM

#81

Mark @ AIM Performance

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Quote:

Originally Posted by rix

Any idea where ~140mph 1/4 mile trap speeds are in 60-100 or 60-130 times?

hard to say because 997 has stupid short gears so you are in 5th gear to trap that high, that really messes with the time and speed. have to be able to do the 1/4 in 4 gears.

Apr 9, 2015 | 01:35 PM

#82

wolfhedge

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Quote:

Originally Posted by prodigymb

almost as fun as 2.4x on pump gas

Teacher's Pet

Apr 9, 2015 | 01:36 PM

#83

rix

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Quote:

Originally Posted by prodigymb

hard to say because 997 has stupid short gears so you are in 5th gear to trap that high, that really messes with the time and speed. have to be able to do the 1/4 in 4 gears.

For the factory power level it really is the right gearing. It's us crazy people trying to make 1,000hp that it doesn't work so well for

Apr 9, 2015 | 01:37 PM

#84

wolfhedge

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Quote:

Originally Posted by rix

Any idea where ~140mph 1/4 mile trap speeds are in 60-100 or 60-130 times?

mtslp, a member here, on A28s with E85 fueling and stock engine was doing 140 mph in the quarter almost on the nose and 60-130 mph in 5.33 secs, something crazy like 2.3-2.5 in the 60-100