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Old 06-07-2010, 08:01 PM
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drag raceing!

i have a 1987 olds cutlass suprem, i changed out the olds 5.0 and tranny, and installed a 87' shorrt block with KB flat tops, eldebrock performer plus cam, 288* with 204/214 420"/442", double hump heads "461's", victor jr intake, with a eldebrock 750, and some 15/8 headers, the rear end has a spool with 4.10 gears, in front of that is a 78' turbo350 with the shiftkit, 2200-2500 stall, currently im getting it ready to take back to the strip but i m replaceing the flexplate, iv worpt the old one some where along the line?? well im planin on makeing afew passes with the cam that currently in it now, then moveing on up to the summit 1106, 292/292 234/234 488"/488", any ideas on how fast the car will be in the 1/4 or the 8th?? oh yeah the car will be fully dressed around 3800lbs??????And if anyone has a guess to what power its makeing with the old and the new cam the would good to know too, thanks..........
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Old 06-07-2010, 08:10 PM
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Quote:
Originally Posted by gofastz
i have a 1987 olds cutlass suprem, i changed out the olds 5.0 and tranny, and installed a 87' shorrt block with KB flat tops, eldebrock performer plus cam, 288* with 204/214 420"/442", double hump heads "461's", victor jr intake, with a eldebrock 750, and some 15/8 headers, the rear end has a spool with 4.10 gears, in front of that is a 78' turbo350 with the shiftkit, 2200-2500 stall, currently im getting it ready to take back to the strip but i m replaceing the flexplate, iv worpt the old one some where along the line?? well im planin on makeing afew passes with the cam that currently in it now, then moveing on up to the summit 1106, 292/292 234/234 488"/488", any ideas on how fast the car will be in the 1/4 or the 8th?? oh yeah the car will be fully dressed around 3800lbs??????And if anyone has a guess to what power its makeing with the old and the new cam the would good to know too, thanks..........
I have an 86 olds cutlass with a 350 sbc and a th350 tranny and 3.73 and my best is 9.100 in the 1/8th and 14.5 in the 1/4 but i have only taken it to the track once. I haven't finished tuning it either or figuring out my best launch technique. I tried going off the converter but it seems to launch harder with just jumping on it on the third yellow. I have a feeling i can get low 14s out of it and i only have 25" tall tires too right now which isnt helping anything. I personally if I were you would ditch the victor jr intake. A dual plane would make more power with your setup with both cams. Everyone sees single planes on race cars and assumes thats what you need to make power. It all depends on your power band.
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Old 06-07-2010, 08:17 PM
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Quote:
Originally Posted by zildjian4life218
I personally if I were you would ditch the victor jr intake. A dual plane would make more power with your setup with both cams. Everyone sees single planes on race cars and assumes thats what you need to make power. It all depends on your power band.
Hallelujah! Someone else who has thought this through!
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Old 06-07-2010, 08:43 PM
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I third that. Get rid of the Vic Jr. I`m betting your ET`s will improve.
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Old 06-08-2010, 03:49 PM
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than a RPM air-gap would do the trick??
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Old 06-08-2010, 04:38 PM
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Quote:
Originally Posted by gofastz
than a RPM air-gap would do the trick??
Yup. The non air-gap will also work too.
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Old 06-09-2010, 02:56 PM
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i found some stock dia valve springs 1.25, they will hold up to 600" lift, for i can up my cam verity cost of the springs $107.99 with locks and retainers and seals, good deal???
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Old 06-09-2010, 03:19 PM
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Quote:
Originally Posted by gofastz
the car will be fully dressed around 3800lbs??????
How come so heavy? Even if you factor in the driver's weight...that's heavy. My 3/4-ton chevy pickup was 4200-lbs. Any suspension-mods/traction devices? Slicks or drag radials?
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Old 06-09-2010, 04:09 PM
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Quote:
Originally Posted by gofastz
i found some stock dia valve springs 1.25, they will hold up to 600" lift, for i can up my cam verity cost of the springs $107.99 with locks and retainers and seals, good deal???
You need springs rated for your cam. Contact your cam grinder and order them accordingly.
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Old 06-09-2010, 06:20 PM
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i talked to my cuzin, this side of the family are machineist, he said i could run what spring i wanted, and dont go above 320 open pressure, any more than that it would start wearing the lobes off the cam or the face of the lifter, "hyd flat tappet and solid flat tappet"!! The cam id like to go up to is the comp 305 os the summit 1109? lol hell i mite change the cam 5 times b4 i find the one i really like....
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Old 06-09-2010, 06:33 PM
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this is my goal, to take this std. bore 350 as far as it will go with out NOS! They say the fuel injected engines dont leave as much or no ring rige, mine was a TBI engine, the bore had no ring rige, so std flat tops we went.... later will come the boreing, more than likely..
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Old 06-09-2010, 06:38 PM
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Quote:
Originally Posted by a1supersport
How come so heavy? Even if you factor in the driver's weight...that's heavy. My 3/4-ton chevy pickup was 4200-lbs. Any suspension-mods/traction devices? Slicks or drag radials?
thats my guess, no suspention mods, or traction devices, did run slicks @ one time need new ones now, plus they were too big, ran out of room, 28/10.5/15 mt et streets...im thinkn a 9 inch wide, 26-27 in tall??
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