Couple of new best for 2019 - Page 3 - Chevelle Tech
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post #31 of 59 (permalink) Old Oct 23rd, 19, 7:17 AM
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Gene
 
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Re: Couple of new best for 2019

Very well done! crazy 60' times!
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post #32 of 59 (permalink) Old Oct 23rd, 19, 10:06 AM Thread Starter
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Dale
 
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Re: Couple of new best for 2019

Quote:
Originally Posted by 67Mike View Post
Stall converter?
The convertor is a Coan 8" maximum performance unit that was spec'd for my 730hp 502 and currently running it untouched for this build. With the 502 it stalled around 5100, with this 540 I think around 5600. I don't have recording capabilities and it's hard to watch the tach with the wheels up in the air At the 1/4 mile rpm's used to be around 7000 with 92" circ slicks and I haven't run it 1/4 mile yet with the new 89" circ radials.

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66 Chevelle
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Building more of a race car than driver but driving it more than I race. "simple old school shake, rattle & roll".
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post #33 of 59 (permalink) Old Oct 23rd, 19, 10:44 AM
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Re: Couple of new best for 2019

Quote:
Originally Posted by Monk View Post
The convertor is a Coan 8" maximum performance unit that was spec'd for my 730hp 502 and currently running it untouched for this build. With the 502 it stalled around 5100, with this 540 I think around 5600. I don't have recording capabilities and it's hard to watch the tach with the wheels up in the air At the 1/4 mile rpm's used to be around 7000 with 92" circ slicks and I haven't run it 1/4 mile yet with the new 89" circ radials.
My Converter acted the same way. I don't even remember which engine combo it was adjusted for, but it kept working better and better the more power I threw at it.
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post #34 of 59 (permalink) Old Oct 23rd, 19, 5:26 PM
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What valve springs and how long do they live?
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post #35 of 59 (permalink) Old Oct 23rd, 19, 10:18 PM Thread Starter
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Dale
 
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Re: Couple of new best for 2019

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Originally Posted by bracketchev1221 View Post
My Converter acted the same way. I don't even remember which engine combo it was adjusted for, but it kept working better and better the more power I threw at it.

It does seem that way. Finding a good convertor is like finding a good carb; don't get rid of it.

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66 Chevelle
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post #36 of 59 (permalink) Old Oct 23rd, 19, 10:26 PM Thread Starter
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Dale
 
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Re: Couple of new best for 2019

Quote:
Originally Posted by JBoggs View Post
What valve springs and how long do they live?

Foxwell put Pac 1224 on it and they've been on it for about 3500 miles now. One broke initially but when I sent it back to Pac for inspection, they said it most likely had a flaw because it just shouldn't have broke. I check them regularly with an on head checker and the pressures seem to be holding up well. When I change them out, I'm going to go with the Pac 1324. They say this is a better spring for endurance.


Have you had any spring issues? Also, how did that scoop work out for you. I've been running individual filters and think they're hurting it slightly on the big end.

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post #37 of 59 (permalink) Old Oct 24th, 19, 8:04 AM
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My first springs didn't last too long, they started to fade. Not way out of spec but down on the seat/open. Spoke with Chris, he sold me a set of 1326 at cost. The car picked up in MPH and ET with this change.

Would guess those filters hurt performance. I made 2 changes when I added the scoop. Not sure it's worth much. Would like to try a couple elbows. I've seen a buddy's car pick over a 1/10 with an elbow. Watched another buddy buy a lexan scoop and gain no ET.

Next season I will be on a radial like yours. Going with a glide was a mistake on my part. Doubt it ever leaves like your Chevelle.

Like to see you get in the 70's...
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post #38 of 59 (permalink) Old Oct 25th, 19, 12:47 PM Thread Starter
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Dale
 
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Re: Couple of new best for 2019

Quote:
Originally Posted by JBoggs View Post
My first springs didn't last too long, they started to fade. Not way out of spec but down on the seat/open. Spoke with Chris, he sold me a set of 1326 at cost. The car picked up in MPH and ET with this change.

Would guess those filters hurt performance. I made 2 changes when I added the scoop. Not sure it's worth much. Would like to try a couple elbows. I've seen a buddy's car pick over a 1/10 with an elbow. Watched another buddy buy a lexan scoop and gain no ET.

Next season I will be on a radial like yours. Going with a glide was a mistake on my part. Doubt it ever leaves like your Chevelle.

Like to see you get in the 70's...
Good to hear you didn't have a spring mishap.

I was thinking of trying one of those Lexan scoops for the track, don't know anyone that's used them. The K&N filters I have are designed to be run in a scoop and don't use the typical K&N filter media, it's more like a fine screen. You can almost see thru them, but I'm sure they're not helping with straightening out the air flow without their scoop. I'd like to do something to pickup the mph.

I'm impressed with the radials so far. They're working better than any of the 5 different slick I've tried. Go .70's !!

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post #39 of 59 (permalink) Old Oct 25th, 19, 1:06 PM Thread Starter
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Re: Couple of new best for 2019

Went out to Lapeer Dragway Wednesday. We were fighting a constant 30 mph direct headwind. I tried the trans brake @ 3000 rpm's. It abruptly popped the front tires up and then blew the tires off. Too much shock for these rear Strange DA's to control. I can't lower the 2-step any further because the engine doesn't like it and will actually stall. I'm sure I could mess with the carbs but it might effect its street-ability. Anyways, went back to foot braking and managed 1.31-1.35's and a '60 on the back tires with a 1.41 when I shifted 2nd in the air. No video of it but given what the previous runs were, I'm confident this was the rear tires. Honestly, I enjoy the initial hit more than the rest of the run. I think they should start a new racing class; 60 foot only
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post #40 of 59 (permalink) Old Nov 20th, 19, 1:42 PM Thread Starter
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Re: Couple of new best for 2019

Chipping away at it, another Personal Best ET in the full quarter mile. Last time out for this year, -300 DA, 10 mph headwind. Previous 1/4 mile best was 9.46 last year, so a full 1/10 quicker. It might have done even better but there were a group of street tire cars that showed up that just destroyed the start line. One of my runs, I was behind a guy that literally did two 30 second burnouts, 3 dry hops and 3 starts before he went down the track. It was entertaining but their tires left a bunch of rubber "balls" on the track from their burnouts, and it toyed with my radials.

Brian & I finally got to line up together but as fate would have it (or luck depending on perspective), his car broke the ring & pinion right off the line. To his credit, like a hero, he drove the car down the track broken. I think it netted a 30 second run

Looking forward to next year...
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post #41 of 59 (permalink) Old Nov 20th, 19, 2:24 PM
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Re: Couple of new best for 2019

(:Brian & I finally got to line up together but as fate would have it (or luck depending on perspective), his car broke the ring & pinion right off the line. To his credit, like a hero, he drove the car down the track broken. I think it netted a 30 second run


Really you had to go and kick me while I`m down next year will be different
By the way your car ran I don`t think it would have mattered

Brian

66 chevelle
New Combo
555
10.2 comp
Straub ProMaxx heads
Straub solid roller
TH400/373
3815lbs
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post #42 of 59 (permalink) Old Nov 20th, 19, 7:10 PM
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Re: Couple of new best for 2019

Quote:
Originally Posted by Monk View Post
Chipping away at it, another Personal Best ET in the full quarter mile. Last time out for this year, -300 DA, 10 mph headwind. Previous 1/4 mile best was 9.46 last year, so a full 1/10 quicker. It might have done even better but there were a group of street tire cars that showed up that just destroyed the start line. One of my runs, I was behind a guy that literally did two 30 second burnouts, 3 dry hops and 3 starts before he went down the track. It was entertaining but their tires left a bunch of rubber "balls" on the track from their burnouts, and it toyed with my radials.

Brian & I finally got to line up together but as fate would have it (or luck depending on perspective), his car broke the ring & pinion right off the line. To his credit, like a hero, he drove the car down the track broken. I think it netted a 30 second run

Looking forward to next year...

Did Brian leak 90 weight down the track?

72 Monte Carlo (3865 lb Street/sStrip Orange Monster)
6.09/113.75 mph 1.32 60 ft.
9.634/141.50 mph-best pass

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post #43 of 59 (permalink) Old Nov 20th, 19, 7:37 PM
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Quote:
Originally Posted by 72BBMonte View Post
Did Brian leak 90 weight down the track?
No runs,no drips and one error, I think it knocked some teeth off the ring gear or pinion. I haven't opened it up yet. The car moves but feels like it has a flat tire.
See you in a few weeks?

Brian
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post #44 of 59 (permalink) Old Nov 20th, 19, 7:48 PM
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Chris
 
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Re: Couple of new best for 2019

Quote:
Originally Posted by Monk View Post
Thanks guys. It's a great feeling when things start to come together.
Some specs on the car;
We scaled it last Wednesday, 3602 w/me in it and 50.99% front to back. There are other numbers but not sure what they mean.
TH400, 4:10 Dana 60, Rears Strange DA full tight ex & comp, Fronts Calvert 90/10.
Straub/Foxwell spec'd 540, 10.25:1, lives & races on pump gas.
Scat, Engine Pro and Mahle flat tops.
Heads started life as angle milled AFR 315's, now Foxwell smiled on, around ~337, port entries untouched, 2.325 custom Foxwell valves, flow ~400 @ .800 but carry well out to 1" and per Foxwell; "ports are nice and smooth and stable".
Old Victor Ram only fluffed & buffed, 2-1050 Holley Gen3 Ultra dominators and if nobody caught it; 2-1050's on a tunnel ram on a 10.25:1 engine, foot braked.
Attachment 606072
What have you done to lighten the car? Is that 3602 without the hood?

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post #45 of 59 (permalink) Old Nov 20th, 19, 10:42 PM
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Re: Couple of new best for 2019

Quote:
Originally Posted by B433 View Post
No runs,no drips and one error, I think it knocked some teeth off the ring gear or pinion. I haven't opened it up yet. The car moves but feels like it has a flat tire.
See you in a few weeks?

Brian

Looking forward to it, if we run into Erica Enders this year I need to follow up and ask her for a picture! Get some pictures of us also.
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