997TT vs SL55 K2
#1
997TT vs SL55 K2
I was expecting the SL to murder the 997TT because it has about the same hp/tq at the wheels as the 997TT has at the crank. Not so. After 3-4 rolling starts from 50-65, the best I can say is that it depends a lot on speed/rpm of the 997TT at launch. The SL would get the jump if the 997TT was in the wrong gear. On our last pull I was in third at about 3200 rpm and the turbo jumped a nose ahead of the SL and was maybe pulling away at a turtles pace, maybe. The SL clearly trounced the turbo in the sound department. My friend did a fly by and all I can say is WOW! A fly by in the turbo sounds more like a VW on steriods.
#3
Originally Posted by Mussel Kar
I was expecting the SL to murder the 997TT because it has about the same hp/tq at the wheels as the 997TT has at the crank. Not so. After 3-4 rolling starts from 50-65, the best I can say is that it depends a lot on speed/rpm of the 997TT at launch. The SL would get the jump if the 997TT was in the wrong gear. On our last pull I was in third at about 3200 rpm and the turbo jumped a nose ahead of the SL and was maybe pulling away at a turtles pace, maybe. The SL clearly trounced the turbo in the sound department. My friend did a fly by and all I can say is WOW! A fly by in the turbo sounds more like a VW on steriods.
#5
Originally Posted by neil.schneider
Are we talking sl 55 amg? I thought the 997tt would crush it. How would it fair against a sl600?
#7
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#9
Originally Posted by Mussel Kar
I just looked at the dyno sheet from when I had the K2 done. The SL55 K2 has more hp and tq at the rear wheels than the 997tt has at the crank. Yet I still think the 997tt was inching away.
#10
Don't be fooled by Porsche's typically conservative hp ratings on their Turbo/GTx cars. Not to mention the perfect gearing that keeps the engine in full song (of course, with over 500 ft-lbs at a measly 1950 rpm that isn't hard to accomplish) and the small frontal area, the TT is a force to reckon with in any real world acceleration contest.
#12
Guy's I've seen stock E55 run 12 flat 1/4. they are very fast and like porsche, MB is conservative. My K2 E55 dyno'd at 585 rwhp and 650 lb/ft and trapping at around 125 mph. In a drag race my 997 S would have no chance either against my stock E55 and with K2, forget it.
#13
Originally Posted by E55AMG
Guy's I've seen stock E55 run 12 flat 1/4. they are very fast and like porsche, MB is conservative. My K2 E55 dyno'd at 585 rwhp and 650 lb/ft and trapping at around 125 mph. In a drag race my 997 S would have no chance either against my stock E55 and with K2, forget it.
I have seen a few dyno sheets for E55 K2's and they are around 440 - 470 RWHP. Are you sure you did not mean "Flywheel" HP?
Last edited by AzExoticLover; 08-20-2006 at 11:33 AM.
#14
Originally Posted by E55AMG
Guy's I've seen stock E55 run 12 flat 1/4. they are very fast and like porsche, MB is conservative. My K2 E55 dyno'd at 585 rwhp and 650 lb/ft and trapping at around 125 mph. In a drag race my 997 S would have no chance either against my stock E55 and with K2, forget it.
#15
You should not discount the MB cars in a straight line. Stock, the E55 / SL55 will smoke a non-turbo 997 in any contest of acceleration -- from a standstill, a roll, etc. A well-driven or tiptronic turbo 997 will in turn beat both from a dig; from a roll, it would be a close race.
The Benz's are all *that* heavy, either -- the E55 is 4100 lbs, the SL55 is 4200, while a tiptronic 997 is 3600.
The Benz's are all *that* heavy, either -- the E55 is 4100 lbs, the SL55 is 4200, while a tiptronic 997 is 3600.