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Wow, it seems like many people are engaged in a debate about my top speed, but I don't mind
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-01-2014, 06:52 PM
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Quote:
Originally Posted by TheRedSlantnose View Post
Alright, I guess I'll see if I can book for the next Texas Mile event and see what the top speed really is
Quote:
Originally Posted by 930cabman View Post
I would put five bucks on the fact a "roadable" 930 will not make 217 mph, more so an open one. Mine is ok at 140, but that is a long way from 217.
I'll bet $1k USD the car won't make 217 mph the way it sits right now.

Jason - Enjoy the car for what it is, but like others and I have said before, don't believe everything you hear or read.
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Old 04-01-2014, 07:05 PM
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Just did a quick search for something comparable, and the best I came up with is the later-2000's Z06's. They are stated 505hp but probably closer to 530hp IIRC and had a top speed of 198. Car's weight around. 3-3,100lbs.

So, last big factor is frontal coefficient of drag. What's a Slant to a Z06?
Old 04-01-2014, 07:19 PM
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Quote:
Originally Posted by Tippy View Post
So, last big factor is frontal coefficient of drag. What's a Slant to a Z06?
I don't have any numbers to quote, but one would think that the Slant would have MUCH more drag with its upright windshield, right? And I would bet that the cabrio top is another source of tremendous drag.
Old 04-01-2014, 08:10 PM
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Not to be another parade pisser but, did you get a dyno sheet verifying the 545 H.P.
( is that CHP or WHP ) If not I'd be pretty skeptical of that claim as well cause there's no way that car will break 200 mph let alone 217

"my car's top speed may seem unrealistic, but it's possible."

I don't think it is, but I'd love to be proven wrong.
Looks like the cars a blast regardless though. Enjoy
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81 Pacific Blue 930 Euro coupe slicktop on a strict diet, Rarlyl8 headers, Blowzilla turbo, Tial waste gate, Full bay I/C, Home made center out exhaust, Leask WUR, MSD 6AL, PLX wideband
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Old 04-01-2014, 11:41 PM
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Quote:
Originally Posted by WPOZZZ View Post
I'll bet $1k USD the car won't make 217 mph the way it sits right now.

Jason - Enjoy the car for what it is, but like others and I have said before, don't believe everything you hear or read.
Well, there was one other guy who was also doubtful of the top speed because he, like everyone else here apparently, thinks it's a little fast for a convertible and that 217 mph seemed more like a hardtop's top speed. With that said, my car's top speed may be a little less than 217. Though other car enthusiasts don't seem to question my top speed when I tell them.
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 04:30 AM
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Quote:
Originally Posted by pkabush View Post
Not to be another parade pisser but, did you get a dyno sheet verifying the 545 H.P.
( is that CHP or WHP ) If not I'd be pretty skeptical of that claim as well cause there's no way that car will break 200 mph let alone 217

"my car's top speed may seem unrealistic, but it's possible."

I don't think it is, but I'd love to be proven wrong.
Looks like the cars a blast regardless though. Enjoy
Okay, my top speed may or may not be 217 mph, but I guess I'll never know since I've never driven it that fast since the fastest I've driven it was only 150 mph. I've been trying to book for the next Texas Mile meet since last year to test my top speed, but I miss it every time.
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 04:40 AM
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Quote:
Originally Posted by Ronnie's.930 View Post
Just for the sake of friendly BS about realistic top speed numbers, and by way of comparison, Eddie Bello did 228.5 at the Texas Mile in 2010, and his car (1994 911 - narrow body style) has over 1200 RWHP.
Right, but that wasn't his car's top speed. In another video, his top speed was over 250 mph, and he has over twice the power my car has.
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 04:47 AM
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Maybe that mystery toggle switch is really a top speed button.
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Old 04-02-2014, 04:53 AM
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Quote:
Originally Posted by TheRedSlantnose View Post
Well, there was one other guy who was also doubtful of the top speed because he, like everyone else here apparently, thinks it's a little fast for a convertible and that 217 mph seemed more like a hardtop's top speed. With that said, my car's top speed may be a little less than 217. Though other car enthusiasts don't seem to question my top speed when I tell them.
Even if your car was a coupe, I don't think it would hit 217 mph the way it stands. Heck, I'm putting new turbos in my 996tt with new software that should take me to about 530hp and I doubt my car would get close to 217 mph.
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Old 04-02-2014, 05:55 AM
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Quote:
Originally Posted by willtel View Post
Maybe that mystery toggle switch is really a top speed button.
It basically is since the toggle switch enables my maximum boost setting of 1.25 bar, and I can adjust it with the boost controller as well.
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 07:28 AM
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Quote:
Originally Posted by WPOZZZ View Post
Even if your car was a coupe, I don't think it would hit 217 mph the way it stands. Heck, I'm putting new turbos in my 996tt with new software that should take me to about 530hp and I doubt my car would get close to 217 mph.
But isn't a 996 Turbo heavier than a 930?
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 07:28 AM
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Guess I should've named this thread "Top Speed Debate"
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 07:29 AM
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Quote:
Originally Posted by TheRedSlantnose View Post
Right, but that wasn't his car's top speed. In another video, his top speed was over 250 mph, and he has over twice the power my car has.
Yep - good point on that.

Last edited by Ronnie's.930; 04-02-2014 at 07:54 AM..
Old 04-02-2014, 07:50 AM
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Quote:
Originally Posted by TheRedSlantnose View Post
I know many convertibles are less stable than their hardtop counterparts, but few convertibles were designed to be just as stable as a hardtop. With that said, how stable is a 930 Cabriolet?
Back to the OPs original question:

Unless you can drive like Brian Redmond, Hurley Haywood, or Darren Law, you won't notice a difference in stability or handling.

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Old 04-02-2014, 08:04 AM
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But isn't a 996 Turbo heavier than a 930?
It is, but it also has better aerodynamics. A stock 996 supposedly has a top speed of 178 mph. A 996 turbo, 189 mph. 100 horses gets you 11 mph. A factory 330hp slant topped out at 171.

Your enthusiasm about the car is great, but instead of starting a thread wondering about your car's stability, just take her out for a drive and enjoy her.
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Old 04-02-2014, 03:35 PM
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Quote:
Originally Posted by TheRedSlantnose View Post
But isn't a 996 Turbo heavier than a 930?
weight has less bearing on top speed than you think- especially in terms of 996 vs 930.
acceleration and braking and handling, yes..
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Originally Posted by TheRedSlantnose View Post
Guess I should've named this thread "Top Speed Debate"
Old 04-02-2014, 03:51 PM
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It's pretty simple to figure, if it revs in 5th like any other G50, then power or not, it won't do 217. If it revs really, really low at highway speeds, then it's geared for such an excursion.

But, it won't do both 217 and run 10's in the 1/4 mile. Gears have to be one way or the other.
Old 04-02-2014, 03:58 PM
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its a fact a 930 cab will accelerate at 9.8 meters/second squared up to terminal velocity held back only by wind resistance so 217mph is possible by any 930 cab accelerating in this way.. It's repeating the test thats the problem.
something top gear would do.


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Old 04-02-2014, 04:30 PM
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Quote:
Originally Posted by Tippy View Post
It's pretty simple to figure, if it revs in 5th like any other G50, then power or not, it won't do 217. If it revs really, really low at highway speeds, then it's geared for such an excursion.

But, it won't do both 217 and run 10's in the 1/4 mile. Gears have to be one way or the other.
Well, now that you mention it, my car revs at about 3000 rpm at around 60 mph in 5th gear. However, from this point, it seems like the only true performance spec of my car is the 0-60 time of 3.4 seconds, because that I've actually proven myself, but since all of you guys are so doubtful of the 217 mph top speed, I'm now wondering where Protomotive got that number. The specs sheet I have does show a top speed of 183 mph with a Carrera's gearing for all four mod stages, and significantly higher top speeds with a 930-geared G50, which my car is equipped with.

The top speeds of the four mod stages with a 930-geared G50 are:

-205 mph for Stage 1, 360 hp
-211 mph for Stage 2, 485 hp
-217 mph for both Stage 3 (545 hp) and 4 (650+ hp) (My car has the Stage 3 mods)

Protomotive had to have gotten those top speed numbers somewhere, and I doubt they're merely exaggerations, which I hope they aren't.
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Jason

1987 930 Slantnose Cabriolet, 545 hp, Guards Red- Weekend cruiser
1986 944 Turbo (951), 350+hp, Guards Red- Track car
2005 Toyota Tundra SR5 Double Cab 4x4, stock 282 hp, Silver- Daily driver
Old 04-02-2014, 04:33 PM
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