Chevelle updates

[VintageMusclecar]

Two videos are now up on Facebook.

[markjohnson]

You'll get there and on the positive side, you brought home an unbroken car from its first track visit which is alway a good thing. Looking forward to hearing about your next strip visit.

[SuperNovaSS]

Awesome Eric. I'm glad to hear you made it. Won't they require a rollbar if you go sub 12's?


Jason

[VintageMusclecar]

The formal cut-off is supposed to be 7.49 in the 1/8 and 11.49 in the 1/4. SOMETIMES They'll give some leeway.

[kwhizz]

The "Hook" is set..........LOL..........Enjoy and keep the reports coming !!!!!

[scuncio]

Nice 60' time. What tires were you running?

[VintageMusclecar]

MT Drag Radials, 275/60/15.

[EZ Nova]

Sorry, but I'm a little confused trying to follow this thread??

Here's what I THINK (??) I got so far:

1. Do did a GREAT job restoring the Chevelle. It's a BB 496 you did, and stick.

Confusion starts with:

1. It's a 496 that you did a separate "build thread" on. You linked it back a few times. BUT that thread say "Remember, the results up to this point are still with 100% original, UNPORTED cylinder heads with stock 2.19 1.72 valves."

2. In the update thread you go on to say you got 840 casting in 2 weeks and of to Chad for porting as shown in the picture. Page 11

3. See on page 13 that Chad got some nice results out of the 840's.

4. Never got it back to the dyno? 25 pulls on it with stock heads and NOTHING to figure the new heads?????


I missed cam timing so cant say what I figure the heads help was, say 70hp?? So a 670 hp motor and only getting 12.0's or high 11 with a Mt 275 Dr tire (which by the way probably has the most advances as any tire today for racing)??? I thought hat car should have been over a second faster. My '69 Nova set-up like this (M21, 4.56, 9" slick) but with a lil mild 396 went 10.47. Basically a STOCK balance L-78 STANDARD bore 402 with only ARP rod bolts. Stock pan, PORTED 840's, but did have a strip dom intake and reworked holley 800. UT I did have a solid roller .660 cam.

Seems like you know what your doing, and been around these cars for a while, but what are we missing???

John

[VintageMusclecar]

(1) 496 is still running with UNported heads--just received new heads from Chad, haven't gotten them installed yet. Motor made just over 600 on the dyno (30 pulls) in current form.

(2-4) Heads aren't even built yet, will be built and will go back to the dyno shortly.

First, remember this is a NEW combination that's only been down the track twice. First pass was an EASY pass and went 7.74 @ 90+ with a soft launch and short shifting. That equates to ~12.07--again, on a soft pass. It only 60'ed 1.76.

The 2nd pass blew the tires off losing over .4 in the 60' AND I missed 3rd gear. I just drove it the rest of the way down the track, still went 12.7 @ 111.

Both runs were also with cold tires--I didn't even do burnouts, just wanted to get a feel for the car on the track.

Like I said, the car has EASY 11's in it as it sits, it's the DRIVER (me!) that needs work. I haven't made a pass down a dragstrip in over 20 years! Give me some time to get the hang of this again and to get the car shook down.

There's <span style="font-weight: bold">plenty</span> left in it!

[Jim Ferron]

Eric, Man it's great to see you have so much enthusiasm for getting your combo dialed in! My get up and go...got up and left.

Please update us all on you combo [I've sure it's listed more than once in the 55 pages ..

496 4 speed I know..[true 496 or 489?]

Carb?
Gear?
Intake manifold?
Distributer?
Heads big port open chamber?
Compression ratio?
Roller cam?

Thanks, When you are done with your car will you do mine for me? [img]<<GRAEMLIN_URL>>/[/img]