Track times with 450+ RWHP?
03-27-2011, 07:13 AM
#21
It's all good. I know it will be extremely hard but I can dump about 200 lbs pretty quick with interior items. I really need some more power (other than Nitrous) but don't know what is left out there. I have everything except maybe a larger MAF or one of the big 10mm lids now.
03-27-2011, 09:15 PM
#22
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In reading your post it appeared to me you were basically saying that what the OP is trying to do you did years ago! In you first post you actually gave him no help what so ever considering a C5Z weighs nowhere close to his car! Help me out I thought a manual transmission was a 6 speed?
Yes actually I do have some involvement with a 2000 C5 Corvette that was running 10.60’s six years ago NA at just a little over 390 Horsepower to the rear wheels with a 346 CI H/C, 4 speed auto and 3.73 gears to present day running 9.50’s at over 143 MPH’s NA with a 427 CI, 4 speed auto and 3.42 gears!
A Corvette does not have limiting factors when it is running mid 10’s suspension wise. The stock transmissions may have limiting factors but everything else seems to do OK. Now when you start getting over 500 HP to the rear wheels you have a different story!
There were plenty of go fast goodies 5 years. I will agree with you there are even more go fast goodies now. I will add there are several people going fast today with old parts!
I think I touched a nerve! Please explain how a C5Z barely tipping the scales above 3,000 lbs. compares to his 3,800 lb Trans AM?
So in one post you say there are limiting factors with the Corvettes than in your next post you say it takes no additional parts other than stock to run mid 10’s in the subject Corvettes except engine modifications.
You mentioned the above subject Corvette results are not much different then what I am doing but I am doing it with old parts and 50 horsepower less than your Corvette above. You all must be big guys or running with a passenger down the track. I have never heard of a C5Z weighing the numbers you listed in your post. I know of one C5 auto with CCW’s, passenger seat removed, added 4 pt. roll bar with a 220 lb. driver seating in it that registered just a little over 3,200 lbs. on the scales at the track.
Regardless 450 horsepower is 450 horsepower whether you have 5 year old parts or brand new parts. As I stated in my first post comparing a C5Z Corvette to a fully loaded Trans Am with an added 9 inch rear is comparing apples to oranges!
Intercooler2 sorry for high jacking your thread!! Good luck on your next outing!
N2
Yes actually I do have some involvement with a 2000 C5 Corvette that was running 10.60’s six years ago NA at just a little over 390 Horsepower to the rear wheels with a 346 CI H/C, 4 speed auto and 3.73 gears to present day running 9.50’s at over 143 MPH’s NA with a 427 CI, 4 speed auto and 3.42 gears!
A Corvette does not have limiting factors when it is running mid 10’s suspension wise. The stock transmissions may have limiting factors but everything else seems to do OK. Now when you start getting over 500 HP to the rear wheels you have a different story!
There were plenty of go fast goodies 5 years. I will agree with you there are even more go fast goodies now. I will add there are several people going fast today with old parts!
I think I touched a nerve! Please explain how a C5Z barely tipping the scales above 3,000 lbs. compares to his 3,800 lb Trans AM?
So in one post you say there are limiting factors with the Corvettes than in your next post you say it takes no additional parts other than stock to run mid 10’s in the subject Corvettes except engine modifications.
You mentioned the above subject Corvette results are not much different then what I am doing but I am doing it with old parts and 50 horsepower less than your Corvette above. You all must be big guys or running with a passenger down the track. I have never heard of a C5Z weighing the numbers you listed in your post. I know of one C5 auto with CCW’s, passenger seat removed, added 4 pt. roll bar with a 220 lb. driver seating in it that registered just a little over 3,200 lbs. on the scales at the track.
Regardless 450 horsepower is 450 horsepower whether you have 5 year old parts or brand new parts. As I stated in my first post comparing a C5Z Corvette to a fully loaded Trans Am with an added 9 inch rear is comparing apples to oranges!
Intercooler2 sorry for high jacking your thread!! Good luck on your next outing!
N2
I participated in the thread to give the OP exactly what he asked was done and you seemed to have trouble with that. I'll refrain from further discussion to get the thread back on track.
Again to the OP.
Around 450rwhp(6 speed) stock weight moderate heads/cam in a street vette is good for mid -high 10's in very good air with an experienced driver. Anyone can use this example to get a feel for what their vette is capable of or they can expect to do better with an fbody with similar which is much more suited for drag racing.
03-27-2011, 09:17 PM
#23
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It's all good. I know it will be extremely hard but I can dump about 200 lbs pretty quick with interior items. I really need some more power (other than Nitrous) but don't know what is left out there. I have everything except maybe a larger MAF or one of the big 10mm lids now.
03-27-2011, 09:31 PM
#24
my 2000 a4 z28 BONE STOCK with a full tank of gas weighed 3,480lbs empty as it came off the showroom floor. not a spec of dirt or dust anywhere to be had and no aftermarket parts whatsoever. it was an all option (except 323 gear) ttop car. leather, monsoon etc etc. i weigh 220. basic math gave me a raceweight of 3700lbs. i can see how adding sfcs and 9" rear would add up quickly. the fatass mod sucks, i am fully aware of this. i managed to get the car down to 3280 by removing very simple items.
i have no idea what the ta weighs. it's nowhere near 450whp but trapped 110-111 with a lid and weld in muffler at full weight. it really sucked to have a full bolton a4 car that ran door to door with a stock m6 being piloted by my wife.
i have no idea what the ta weighs. it's nowhere near 450whp but trapped 110-111 with a lid and weld in muffler at full weight. it really sucked to have a full bolton a4 car that ran door to door with a stock m6 being piloted by my wife.
03-27-2011, 09:39 PM
#25
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I made 429 and weigh 3300 with my big *** in the car. Car goes 6.80@98-99 is the personal best in the 1/8th which should convert to 10.80's but I haven't had a chance to run it in the 1/4. Good luck with your car!
03-28-2011, 07:05 AM
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03-28-2011, 02:51 PM
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Just to clear up some facts. In 3/06, my auto C5 had a 346 ci engine in it which made 428 rwhp and 400 rwtq and ran 10.69@126.62 while weighing 3250#. This is the same engine that is presently in N2's car and is the same combination of parts as when I built it. When it was first installed in N2s car, it barely broke into the 10s. With alot of work and some trial and error, along with some weight reduction, it has now run a best of 10.47. There are MANY variables from auto C5s to manual C5s as with comparing IRS cars to straight axle cars. They all work differently with different configurations, drivers, weights, track conditions, and atmospheric conditions. Generally speaking, with your combination of parts I would expect your car to run in the mid to low 11s. Could it get into the 10s with some minimal work? Yes, absolutely. Vetteboy2k is a long time friend and IMO, the premier n/a small cube manual vette out there, bar none! They have worked on enough vettes to know what works and what doesn't work. They have one of the best manual drivers anywhere, period. I have worked on enough auto vettes to know what works and doesn't work. This type of knowledge comes from years of trial and error and spending lots of money. Don't get discouraged.
03-28-2011, 02:58 PM
#29
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that's without me. I always list without me #'s because peoples weight can very so much. I don't care what the person weighs....just what the car weighs. My car still has the bumper supports also....it realy is complete. I have just lightened parts.
03-28-2011, 05:32 PM
#31
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Wow that's a nice job on weight reduction for being that complete still :-)
03-28-2011, 08:13 PM
#32
Intercooler2 - this is my last post in your thread I promise!
Thanks for the correction on the HP number I honestly could not remember. I guess I remembered the TQ number instead of the HP number. But it seems I was correct on most of the other stats!
So let me make sure I understand your post are you saying comparing a C5Z IRS car to a heavy straight axle Trans Am with a 9 inch rear end in it is sort of like comparing apples to oranges? Just kidding no need to respond!
Coming from a guy that responded by posting three times in 21 minutes because I simply said comparing a C5Z to a fully loaded automatic Trans Am with a 9 inch rear end in it is like comparing apples to oranges.
Please go back and look at your first post. You did not give the OP exactly what he asked for period! I think that is why you are certainly having trouble with what you said. Is that why you are now saying in good air with a good driver a C5 can run mid to high 10's.
Since I consider DBN my friend and he sees you as his friend I will not respond to anymore of your post! So since you plan to refrain from responding to anymore of my post we should be done. Take care now!!
N2
In 3/06, my auto C5 with the 346 ci engine made 428 rwhp and 400 rwtq and ran 10.69@126.62 while weighing 3250#.
There are as MANY variables with comparing auto C5s to manual C5s as there are with comparing IRS cars to straight axle cars.
This type of knowledge comes from years of trial and error and spending lots of money.
There are as MANY variables with comparing auto C5s to manual C5s as there are with comparing IRS cars to straight axle cars.
This type of knowledge comes from years of trial and error and spending lots of money.
So let me make sure I understand your post are you saying comparing a C5Z IRS car to a heavy straight axle Trans Am with a 9 inch rear end in it is sort of like comparing apples to oranges? Just kidding no need to respond!
Please go back and look at your first post. You did not give the OP exactly what he asked for period! I think that is why you are certainly having trouble with what you said. Is that why you are now saying in good air with a good driver a C5 can run mid to high 10's.
Since I consider DBN my friend and he sees you as his friend I will not respond to anymore of your post! So since you plan to refrain from responding to anymore of my post we should be done. Take care now!!
N2
.
04-11-2011, 06:46 PM
#35
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Mine are about the same, with me (180lbs) my '98 would weigh in around 3820-3830 and my '02 comes in around 3790-3800. I guess the WS6 hood and plastic tank make the difference cause the cars are otherwise optioned the same.
Thats what I need to figure out, how to dump some weight quick and easy cause I have a feeling I'm not gonna make the index in the heat 
05-12-2011, 01:42 PM
#36
Well I went last night. This is crazy! I have the most consistent 11.40 car ever LOL. My old 224/228 cam 11.40@120 with big/littles and some weight out. This cam and 56 more RWHP 11.40@120 with 6400 shifts. Upped the shifts to supposed 6500/6800, removed the jack, spare tire, amp and subwoofer but on 17's it went 11.43@119 last night. I tried all kinds of launches and did get my best on these tires a 1.56. I watched the tach and it showed about 6400 1-2 and 6500 2-3 but I have been told you can't go by it. I thought it would have at least picked up something out of all that LOL. I'm done
05-12-2011, 02:56 PM
#37
Well I went last night. This is crazy! I have the most consistent 11.40 car ever LOL. My old 224/228 cam 11.40@120 with big/littles and some weight out. This cam and 56 more RWHP 11.40@120 with 6400 shifts. Upped the shifts to supposed 6500/6800, removed the jack, spare tire, amp and subwoofer but on 17's it went 11.43@119 last night. I tried all kinds of launches and did get my best on these tires a 1.56. I watched the tach and it showed about 6400 1-2 and 6500 2-3 but I have been told you can't go by it. I thought it would have at least picked up something out of all that LOL. I'm done
I'll make you feel a little better.....on motor I make 50rwhp more than you and I usually run 11.20s at 123mph in the best air we ever get all year (+1500DA). My race weight is just a tick under 3900lbs. In the summer our DA can jump to over 4000ft pretty easily with the humidity we get, and can easily knock you down 3-5 tenths and 3-5mph......so unless you correct for the weather it's nearly impossible to see if any changes help/hurt you.