11 Second Corvette vs Murf S3
12-17-2010, 06:59 PM
#31
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I've seen these figures tossed out a lot on the internet, but I'm a bit skeptical. Don't get me wrong, I've driven the c5 z06 and it is indeed very very fast. 11s stock though, I couldn't do it. Of course that doesn't mean much since I'm not a pro driver, but then again neither could the professional drivers at C&D or any other magazine I've seen.
12-17-2010, 07:44 PM
#32
Magazine testers are by no means pro racers, or drag racers. Most people couldn't get that time out of the car, I agree there. But it does happen when people that can drive the car get behind the wheel.
12-19-2010, 09:36 AM
#33
Race Car
Don't know about vettes, but I believe the magnacharger kits for my LS1 GTO were around $4K complete...seems a bit south of what the S4 kits go for?
Surprised you seemed to go from idle with the auto- necessary to ensure traction, or just the rules?
Surprised you seemed to go from idle with the auto- necessary to ensure traction, or just the rules?
12-19-2010, 12:29 PM
#34
Administrator - "Tyson"
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2. The kit only adds 110hp
http://www.magnacharger.com/magnacha...ger-system.htm
3. Looking at that site, the cheapest kit I see is $6,610
12-19-2010, 01:02 PM
#35
Drifting
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About 1200rpm, yes for traction.
12-19-2010, 02:42 PM
#36
Drifting
1. Volume
2. The kit only adds 110hp
http://www.magnacharger.com/magnacha...ger-system.htm
3. Looking at that site, the cheapest kit I see is $6,610
2. The kit only adds 110hp
http://www.magnacharger.com/magnacha...ger-system.htm
3. Looking at that site, the cheapest kit I see is $6,610
12-19-2010, 05:45 PM
#37
Race Director
You can pick up a TVS 2800 kit for $6000. My buddy just put one on his 68 Camaro with an LS1. That blower on an LS will make 500whp through a manual at 6psi. Crank it up to 12 psi and you'll get about 800whp. That requires a good bottom end though. A forged rotating assembly is about $2000, or $3000 for a short block.
The most cost effective way to make LS HP is to get a truck LM7 for cheap...well under $1000 used.....change cam & valve springs for $2k total you have about 400hp......add boost to it and your talking 600+
12-19-2010, 05:51 PM
#38
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Bone stock they can be quite reliable, most add an accusump & oil cooler to keep them alive (funny....works for the 928 too
)Once they start to modify, game over. Which is why my friends with higher output engines in their C5's have engines from Doug Rippie, Lengenfelter, and recently a Katech 427, and a few other lesser known builders. Even some of these (from big name builders) have had reliability issues.
Cost of these engines? More than most 928's are worth and I'm talking nice GT's not clapped out OB's.
The grass is always greener until you jump the fence and find out there is a gopher problem.
12-19-2010, 06:01 PM
#39
Race Director
I know quite a few people with ZO6 C5 track cars, not full blown race cars just DE junkies. They are serious drivers and push their cars very hard. A couple of them take vacations at Spring Mountain to hone in their skills on a regular basis.
Bone stock they can be quite reliable, most add an accusump & oil cooler to keep them alive (funny....works for the 928 too )
Once they start to modify, game over. Which is why my friends with higher output engines in their C5's have engines from Doug Rippie, Lengenfelter, and recently a Katech 427, and a few other lesser known builders. Even some of these (from big name builders) have had reliability issues.
Cost of these engines? More than most 928's are worth and I'm talking nice GT's not clapped out OB's.
The grass is always greener until you jump the fence and find out there is a gopher problem.
Bone stock they can be quite reliable, most add an accusump & oil cooler to keep them alive (funny....works for the 928 too
)Once they start to modify, game over. Which is why my friends with higher output engines in their C5's have engines from Doug Rippie, Lengenfelter, and recently a Katech 427, and a few other lesser known builders. Even some of these (from big name builders) have had reliability issues.
Cost of these engines? More than most 928's are worth and I'm talking nice GT's not clapped out OB's.
The grass is always greener until you jump the fence and find out there is a gopher problem.
Increasing HP is the worst possible way to drop your lap times...it takes cubic $$$ to drop time....and its wicked diminishing returns once you get past about 300whp....
Why do SO many racers race Spec Miata's.....thats easy, two big reasons:
1: Its FUN...with plenty of competition
2: COST...as in not that much (in terms of racing costs)
12-19-2010, 07:03 PM
#40
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Its safe to say the most reliable "track" car you can get has a 100% stock driveline..........with maybe a couple oil mods.....
Increasing HP is the worst possible way to drop your lap times...it takes cubic $$$ to drop time....and its wicked diminishing returns once you get past about 300whp....
Why do SO many racers race Spec Miata's.....thats easy, two big reasons:
1: Its FUN...with plenty of competition
2: COST...as in not that much (in terms of racing costs)
Increasing HP is the worst possible way to drop your lap times...it takes cubic $$$ to drop time....and its wicked diminishing returns once you get past about 300whp....
Why do SO many racers race Spec Miata's.....thats easy, two big reasons:
1: Its FUN...with plenty of competition
2: COST...as in not that much (in terms of racing costs)
Two of these guys (one with the KATCH seen in the Titletown party photos) have debated for quite a while about buying couple of Radical's. I suggested the Miata's, to which they replied: "Can we drop V8's in them?"
It's not easy having a stock 79 with friends like this on the track.
12-19-2010, 08:49 PM
#41
Race Director
Agreed 100% - the problem starts when Road America is your home track & you have three long straights, one almost a mile long - HP is fun
Two of these guys (one with the KATCH seen in the Titletown party photos) have debated for quite a while about buying couple of Radical's. I suggested the Miata's, to which they replied: "Can we drop V8's in them?"
It's not easy having a stock 79 with friends like this on the track.
Two of these guys (one with the KATCH seen in the Titletown party photos) have debated for quite a while about buying couple of Radical's. I suggested the Miata's, to which they replied: "Can we drop V8's in them?"
It's not easy having a stock 79 with friends like this on the track.
http://vimeo.com/16946544
He gets down to a 1:55 on the bypass in the LS miata with about 300whp in 2600lbs wet with driver on tiny 225 tires...which is a couple seconds better than what MK could probably run in his 928.... The car just looks like a handful to me.....
I like to say if you want "big" power...you need a big car to handle it..longer wheelbase, wider, big wide tires...just look at how long and wide prototypes are....but the most powerful car I ever drove on track was 400whp...in my street M3....the widow was 300whp....and both of those were VERY easy to drive....the Estate is incredibly easy to drive....you don't even need to shift if you don't want....
I didn't know the straights at RA are that long...it was like watching the videos from SM nationals at Miller and all the top drivers were on the main straight FOREVER and got well up into 5th gear....I would guess above 120mph in those little cars...since I can get better than 110 at Thunderhill in a good SM
12-20-2010, 02:15 PM
#44
The numbers just don't work. If you have an engine that needs 6 PSI to get to 500 RHWP, at 12 PSI the engine will make around 640 RHWP. Assuming there are no head, exhaust, cam, fuel/timing, changes, the engine will need over 20 PSI to get to 800 RWHP.
The LS1 has some work to see 500 RWHP at 6 psi. It is not stock. He probably has some type of heads/cams/exhaust work to get to that level with only 6 PSi. He will need to start with around 355 RWHP to see 500 RWHP at 6 psi. To double the HP in a car with everything else constant, you need 14.7 PSI.
The LS1 has some work to see 500 RWHP at 6 psi. It is not stock. He probably has some type of heads/cams/exhaust work to get to that level with only 6 PSi. He will need to start with around 355 RWHP to see 500 RWHP at 6 psi. To double the HP in a car with everything else constant, you need 14.7 PSI.