I am trying to validate my prediction in my sig below.
The car hooks fine now while putting around 400 HP to the ground.

I see people dropping a full second when they spray a 100 shot on stock engines. My engine has a cam that will compliment the nitrous so I don't see why my car won't run .8 seconds faster with a 100 shot and 1.3 seconds faster with a 150 shot which would net me a 10 second timeslip.

Any thoughts on this, good or bad?

thanks...

 

If you are running 12.2 right now i dont know if a 150shot will take you to 10's especially in a car as heavy as a chevelle. I say 11.2 with a 150 shot.

 

I agree with Ford....wow that felt weird saying that!!!.... but I do.

You need to remember that as you get faster it takes more HP to go even faster. and you won't get all of thet 150hp to the tires.. I'm guessing a low 11 wouldn't be too much to ask for though. Good Luck and let us know how it goes...
Hasn't it gotten too cold to race out there??? I'm in Chicago and I think last weekend was about it to be going to the track....getting too hard to hook right.

Chris

 

If you can hook off a 150 shot you could probably hit the high 10's you're shooting for.

 

its just my name not what i drive, therefore dont have issues with agreeing with me

And yes, you are right and the reason i said you wont reach 10's on a 150 shot. The faster you go the more HP that you are gonna require to go even faster. That 100 hp that made you drop .9 off your ET is only gonna drop .4 the next time around then .2 after that(not exactly but im making a point).

All the more power to you if you do get there, but in all honesty i dont think it will happen, without alot of weight reduction or something else to go along with it.

Trust me if 10's were that easy to hit, you would see alot more people there.

 

low to mid 7's

 

Chris, I appreciate the replies and also agree with you guys about needing more power as the car runs faster / quicker. If the car dead hooks and my 60 ft time shows that then I can see a slight "possibility" of dipping into the 10s.

The nitrous system is adjustable upto 250 HP so if I need to up the shot; so be it ! I just wanted to try to do it with as small of a shot as I could. I won't be spraying the car till next year. I will post up a new thread with the 1/4 times once I get them.

And out here in Philly / Maryland area, the temps are in the 50s in the evenings so racing is still pretty good. Tracks are open for a few more weeks too.

 

Must be nice...the tracks are still open but we're seeing 30's at night already..And if you hook the 60' hard, then you may have a chance at 10's, but it'll be close. probably a 10.99 or 10.98. Good luck though!! And spray it before winter and you have the chance to fix broken parts before summer I tried to blow up the 95....now the trans is slipping and doesn't always go into 4th...good thing it's coming out this winter :P

Chris

 

Pictures of the Chevelle? I've got a 74 big block Vette, http://www.cardomain.com/id/justinsvette

And as for your question, low 11's. 11.1

 

I do have a pic, PM me your email. thanks for the prediction. Your probably right on the money ! Nice vette too !!! What does she run ?

 

I ran your car through some formula's I've created (deriviatives of NHRA's ET formulas). It's usually pretty accurate once a baseline is established (your motor pass).

I'm estimating a 3800 pound car that will run 122.2 mph at 11.00 when sprayed with 150 hp. With a NOS kit or one evaluated with flywheel hp not rear wheel hp. You must also spray off the line at WOT and all the way down. You must also hook the car, use slicks.

Your car is very well tuned (matched gear, converter, cam, blah, blah, blah...). It's one of the best I've seen compared to a couple dozzen cars I track around here. Excellent job.

Please let us know.

 

Well thank you very much.

I have to say, I really appreciate you taking the time to do that for me and then the compliments on the car. I took the advise of several "old gear heads" on the combo so I know it is close to "optimium".
Could you rerun my #s using a 200 shot and 250 shot ? Thank you Andy !!

I won't be running the car much more until early next year after the new ignition and spray gets installed by yours truely (sp?). The last 2 times at the track yielded very similiar times which makes me feel confident she is well tuned. When I do run the car with the spray, I will definately post up the new 1/4 times. I hope the car hooks with the drag radials. If not then I will have to mount up the goodyear full slicks and give them a shot.

I am concerned about twisting the driveshaft on a hard hook.....
anyone got any thoughts on this ?

Heavy

 

Looks like 125.5 mph on the 200 shot with a 10.6x ET.

The 250 shot should yeild a 128.6 MPH with a 10.3x ET.

I have sprayed 200, it seems the more you spray the more efficient the car's ET response. One has to realize the torque curve on a nitrous motor skyrockets at low RPM then tapers off dramatically at high RPM. What this means is the car launches like shotgun, and getting out of the hole is everything ET wise. I mention this because the ET formula are for naturally aspirated cars only, nitrous cars regularly violate the formula (run faster than they should). I have compensated for this based on nitrous cars around here and my personal experience.

Also, a few more words on the analysis provided here, they are accurate as long as nothing changes: same track, same lane, same temp, same humidity, same barometer, same car, same setup, same burnout, same everything......If you do apples an apples comparison you can't beat the consistency of the ET formula, usually within a tenth.

You also make a very, very valid statement. At the end of the day the "old guys" will tell you what's wrong with your car or how to step it up to the next level. As expensive and time consuming as racing is, why everyone doesn't latch on to a mentor is beyond me.

 

I appreciate you taking the time on this.
Thanks again.

I will post up the 1/4 times next year when it happens.
Keep a look out for them.....