htown81vette

Not true, if there was a significant amount of weight reduction, gear change, and all the right suspension components a 10 sec ET could be had. Not easy, you have to know exactly where to take the weight out of (mostly the front end). I have a friend in Pasadena running an iron headed 383 Vega, runs consistent 9.90's. He's been doing it a long time and knows ALL the tricks, and there are many.....05 here, .08 there, it all adds up. It's the little things that make a BIG difference. Heck my neighbor just down the street has a 1991 Camaro, runs Super Stock and HE runs 10's.....with a Gen II 350!! You have to really know what you are doing though. I've been drag racing for 30+ years (off and on) and you would be amazed at what people can pull out of their azz to make their car run fast, and with no power adders.

diehrd

I have never been on a chassis dyno . However based on flywheel HP and weight that calculator I linked to is almost perfectly spot on.

I did no hole shot , I started at an idle of 850 when lights lit up I punched it .. I ran Cooper Cobra street tires and I had both windows down.

11.35 at 122.64.. My 60' was 1.87 .

The most important impact I can make on my time slip is to get the 60' down. And for every tenth I shave off there I should get almost 2 tenths up top at the end of the 1/4 mile.

That calculator says I should run a 10.87 .. And once the 4 link is in , the 2 step is set up and I roll up the windows and come out hard on MT Street Radials I think I am going to be right where that calculator says I should be.

So i personally recommend it ..

diehrd

He is talking using his stock car as it is pictured in his opening posts.

You can get a 1600 pound car to run 9's with a zz383 .. but his quest is a stock corvette with out big changes to weight which means he can never see a 10 with out more hp then a zz383 or even a zz502 can put out.

htown81vette

Well internet racing and real racing are two different things. Those calculators are cute, but they are just for estimation purposes. My experience is with all the tricks you can do much better than what the calculators estimate. I run a 10.60 with a 1.44 60' time, but with a 408 LS motor (LQ9 iron block), and at a heavy 3680 race weight....stock style suspension too (no 4-link) see vid below...

htown81vette

OMG I'm not arguing with you anymore. You clearly are talking beyond your experience level. I bet you (or anyone) 10 grand I could have that car running 10.90's inside of 1 month with a 383 crate motor and no major changes to the suspension, and still stay within his 12k budget.

bluedawg

You did the engine dyno right? What did it make again? I'm currious as to how it matches to the mph. I don't have any doubt that you should be able to reduce your et, but in order to increase the MPH you'd have to either increase hp or reduce race weight. Because of the variables involved in the Elapsed Time, the best marker for Horse power on the strip is the Mile Per Hour.

diehrd

Wow , that is childish. No argument from me ..


3600 pounds 450 flywheel ..10.90 thank you for the laugh that will last me all day .. I do have to say nice video that I liked..

diehrd

I am renting the local track for 6 hours in May .. I am also scaling the car this month .. Once I have weight , proper tires and can take off hard Ill post up times and MPH.

GrandSportC3

If everything is optimized, like gearing, suspension and you add sticky tires (like drag radials or drag tires), mid 11's are possible with a 465 HP 383.. That was the best that I ran with my old '68 convertible with the 383/465 HP. I was running a TKO 500 transmission with a big first gear and 3.70 rear gears and some suspension upgrades and BFG Drag Radials. I also didn't have the spare tire and a light composite spring and some other minor weight reductions.. Car had a full interior.. My best with that setup was 11.67 at about 120 mph. Best on street tires was 12's..

bluedawg

What did it make on the engine dyno? Why rent it for 6 hours, does the track you use not have test and tunes?

BKbroiler

No matter what engine you use the biggest factor in a good ET is maximizing the launch. You don't mention your torque converter. You'll need around 3k to 3.5k stall. This is mandatory. You can never have too much gear. 3.73s would help. Last is tires. Converter, gears and drag radials and a line lock to heat them will get your 60 ft times where they need to be.

diehrd

I have one dyno pull to 6000 rpm and 584 hp

I rent for 6 hours because it allows myself and a few friends to use it uninterrupted for fun and tuning . 4 of them run the xtreme 275 one is featured in this months rpm magazine another is pontiac nut who had for a minute the fastest pontiac powered T/A , and another is a Olds guy and engine builder who literally wrote the book on oldsmobile motors , Bill Trovato . And one is a chassis builder who was also a champion racer Dave Rice .

htown81vette

What was childish about that statement? I was only speaking the truth?

htown81vette

Because he wants to be the only one out there so no one laughs at how slow his really is.

htown81vette

There you go!

bluedawg

He has time slips that are 11.35 @ 122mph.

diehrd

Apparently I should be running 9.50 based on his crazy statements .. LOL

htown81vette

Well your trapping 122 mph. You def. should be running 10.90's with that mph. That is just for starters. Take out some more weight, put a REALLY tall gear like 4.11, some slicks and stand on that biach on the big end I mean STAND on it!! And yeah, eventually you could probably run a 9 eventually.

I'm sensing a drivers mod is in order here as well....that's usually the most common downfall....

bluedawg

Well, Soft take off as you stated when you ran the passes being progressively increased with the 9'' 4 link and sticky tires, The et should be down there some were. I've read that for every second that you take off of the 60' is 1.5 to 2 seconds off the et, I've only made about a dozen passes on the strip in my life so I couldn't say for sure. I plan on making alot more this summer if I get the time off work and am hoping to hit high 11's before I put the blower on.

Whats a drivers Mod?

diehrd

Every tenth at 60 should gross you 2 tenths in the 1/4 mile .. He means I am a bad driver .. Whatever ..