Nealio240z Posted June 29, 2006 Share Posted June 29, 2006 Im 3 days from completing my v8 z... what should the 0-60, and the 1/4 mile be?... sb 350 w/vortec heads, manifold, bored 30 over, headers w/ full race exhaust, TH350 tranny, 390 rear gears. About 300-330 hp. Any guesses? what should i expect?... Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted June 29, 2006 Author Share Posted June 29, 2006 Any questions about my ride... Just ask Quote Link to comment Share on other sites More sharing options...
naviathan Posted June 29, 2006 Share Posted June 29, 2006 5 second 1/4 mile and 1 second 0-60... No really, who knows? It's all dependant on how you tune it, how you drive and how you put it to the ground. In other words, it all depends on you. Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted June 29, 2006 Author Share Posted June 29, 2006 Im a expeirenced drag racer. (last 2 years) if every thing hooks. what will it do... how fast will 300 hp get you in a 2200lb car? Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted June 29, 2006 Share Posted June 29, 2006 Are you sure about that weight? http://robrobinette.com/et.htm Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted June 29, 2006 Share Posted June 29, 2006 I'd guess 12's, but I don't think it weighs 2200, probably 2700. Quote Link to comment Share on other sites More sharing options...
MAXIMUS Posted June 29, 2006 Share Posted June 29, 2006 I'm with the doc on this one. It may weigh more than 2200lbs.Maybe 2500. My guess would be low,low 12's. Maybe even high 11's if your lucky. Quote Link to comment Share on other sites More sharing options...
DavyZ Posted June 30, 2006 Share Posted June 30, 2006 Traction is going to be a big issue here. My friend Mike D had higher HP than that and his V8 could rev to 7000 rpm, yet he could only manage 13's due to severe traction problems. That's what you get with relatively skinny street tires. I think shifting a 5 speed made it a little slower too. On the other side, dmanzo's car, a 383 EFI with automatic and DRs (I think) ran approx 10.9 sec. It's the fastest Z I personally have driven; so smooth you'd never think it's as fast as it is. Davy Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted June 30, 2006 Share Posted June 30, 2006 Yup, they are quick, that's for sure. When I raced in Alb last time I raced a 427BBC powered vega. Tree'd him and pulled him in first pretty good. 10.41 to a 10.86. Those z's are deceptively fast! At the end, he asked what in the world was in that car? Ha ha, wouldn't he like to know......... Quote Link to comment Share on other sites More sharing options...
DaleMX Posted July 1, 2006 Share Posted July 1, 2006 Traction is going to be a big issue here. My friend Mike D had higher HP than that and his V8 could rev to 7000 rpm, yet he could only manage 13's due to severe[/i'] traction problems. Davy That's the truth. When I made the change from the 195/70 13's to 245/45 18's the car took on a whole new meaning. It still looses traction above 4500 rpm in 1st and goes sideways in second. And the car weights about 2800. You need D/R's, so do I. Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted July 1, 2006 Share Posted July 1, 2006 My 240Z weighs 2850 with me in it and a 1/2 tank of gas. It is a 383 with an auto and doesn't feel real fast but runs 10.80 at 125. I murdered a 2001 LS1 Camaro with heads, cam, exhaust and a 100 shot to boot. Ran a Trans Am that had a 6 liter LS motor installed with heads, cam, headers, stall and slicks. Got him by 2 cars with me spinning big time. I only dyno 360-370 rwhp and 420-430 rwtq. HP to wieght gets them every time. Mike Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted July 3, 2006 Author Share Posted July 3, 2006 Thanks for the guesses... your probably right about the weight... I last weighed it with the s-six and no interior whatsoever... Alot of people seem to think that it wont be as fast as i think it will. I dont have a proformance cam or a lsd diff... what can i do about keeping traction? A buddy of mine was running 14.2 w/ his v8z... pretty slow. it was an old 350 truck engine... i hope to at least get in the mid- 13's:burnout: Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted July 3, 2006 Author Share Posted July 3, 2006 Iv heard or an infinity q45 diff swap... is it worth the LSD?... I need to get both wheels spinning... Any suggestions? Quote Link to comment Share on other sites More sharing options...
DavyZ Posted July 4, 2006 Share Posted July 4, 2006 Drag Radials or Slicks. Davy Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted July 5, 2006 Author Share Posted July 5, 2006 Im running street radials... Quote Link to comment Share on other sites More sharing options...
jnjdragracing Posted July 5, 2006 Share Posted July 5, 2006 If it is for drag purposes only and maybe some street time, you can weld up the rear end to make it positraction. Drag radials will do fine. we are going to try some of them at SEZ7 in September. Remember weight transfer is the key. John Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted July 5, 2006 Author Share Posted July 5, 2006 Its for mainly street use... But id take it to the track sometimes... Weight transfer? should i put a weight box in the back to get traction? Quote Link to comment Share on other sites More sharing options...
jnjdragracing Posted July 5, 2006 Share Posted July 5, 2006 Front end travel, you need to install limiters on the front end, also you will need to limit how much the rearend squats when launching. We finally have ours adjusted pretty well. Quote Link to comment Share on other sites More sharing options...
Nealio240z Posted July 5, 2006 Author Share Posted July 5, 2006 I have pretty stiff springs on the back and front... Im guessing that wont help any... What are some things I can do on race day that will improve my 1/4 mi time?. I really need help to get it fast at the track... Quote Link to comment Share on other sites More sharing options...
Guest Dyno_Ron Posted July 7, 2006 Share Posted July 7, 2006 Looks like about mid 12's (assuming you get a bite). I guessed vehicle+driver weight - you can adjust accordingly if you desire. For hints on race day - try to get a good launch, spinning the tires kills et very quickly. No more fuel than you need. Remove any loose items (spare tire, toolbox... - no need for the extra weight), have your tires at the correct psi, make sure you have a double throttle return spring, a closed cooling system or a radiator overflow bottle, no loose trim rings on the wheels, possibly bring a helmet and long sleeve shirt - depending upon your tracks rules. http://www.virtualengine2000.com/FreeCalculator.htm Quote Link to comment Share on other sites More sharing options...
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