Another race day, and I want to go faster!!!!
#757781
07/25/10 10:48 PM
07/25/10 10:48 PM
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Joined: Jan 2003
Posts: 2,309 Tomorrow.
Damned67
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Hi All! Just had our annual Mopar Raceday yesterday. It's always been such an awesome day, and yesterday was no exception. Yesterday was only the second time I'd actually driven the car since last years meeting, and I haven't had a chance to change a thing. Last year, my last and best run was 12.66 @ 114. Yesterday, my first two runs went 12.56 @ 114 and 12.54 @ 113. Third and final run, they'd just put new compound on the track about 3 cars before my run, so I thought I could give it some more gas on the launch... As I started to go sideways, I realized I was wrong! Anyway, my combo is certainly mismatched and has a long way to go, but if you wanted to shave a second off the ET, how would you go about it (tires would be first!)? Do you think I could even shave a second without going back into the engine? Here's the combo: A .030 over 440 block with Indy aluminium main caps and a Callies 4.25" crank, Oliver billet rods and Diamond pistons, giving a compression ratio of 10.4:1. On top is a pair of E'brock heads with some minor work, Indy rockers, and a 0.587/0.593 287/294 cam, under an M1 intake and 1050 Dominator. Downstream is a Mopar 175K converter and a 3.55 rear end, and 'huge' 205/70/14 tires. I should also add that my A/F ratio was about 13.7:1 as I crossed the stripe. Cheers!
Last edited by Damned67; 07/25/10 10:49 PM.
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Re: Another race day, and I want to go faster!!!!
[Re: Damned67]
#757783
07/25/10 11:01 PM
07/25/10 11:01 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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4.1 gears a bigger converter and work on launch/hook looking at it you must be leaving lots on the table???
What is the cam specs @ .050???
Last edited by Dodgem; 07/25/10 11:02 PM.
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Re: Another race day, and I want to go faster!!!!
[Re: Damned67]
#757785
07/25/10 11:27 PM
07/25/10 11:27 PM
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Joined: Jul 2010
Posts: 2,091 Delray beach, Florida
Performance Only
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bigger tires, more convertor and a little tuning for starters. that alone will net a huge gain in performance.
machine shop owner and engine builder
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Re: Another race day, and I want to go faster!!!!
[Re: Damned67]
#757786
07/25/10 11:49 PM
07/25/10 11:49 PM
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Joined: Jan 2003
Posts: 5,875 communist bloc of new jersey
jamesc
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communist bloc of new jersey
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Quote:
Do you think I could even shave a second without going back into the engine?
if you can't there's something drastically wrong with it. as others mentioned, slicks, converter, more gear and tuning. what car, weight, suspension and is it race only or strip/street?
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Re: Another race day, and I want to go faster!!!!
[Re: Damned67]
#757788
07/26/10 08:50 AM
07/26/10 08:50 AM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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Well 3" Dynomax ultraflow welded and X pipe will probably be 5 to 6 tenths faster alone. A 3" pipe will flow over 40% more than a 2.5. Then timing up to 38. then converter (4000, 3500 minimum) bigger sticky tires and 4.1 gears, Cal tracs , ranco shocks and mono springs and I can see you making 10's or pushing it real hard. Carb and jetting?? Fuel system??
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Re: Another race day, and I want to go faster!!!!
[Re: Performance Only]
#757789
07/26/10 09:15 AM
07/26/10 09:15 AM
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Joined: Jul 2010
Posts: 1,491 Oologah, Oklahoma
Big Squeeze
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pro stock
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Oologah, Oklahoma
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Quote:
bigger tires, more convertor and a little tuning for starters. that alone will net a huge gain in performance.
100%.........
In order, It needs putting some more jet in it...........sticky tires........then at least a 4,000 converter (I recommend PTC)..........
With those 3 things, it's got 11.60's or better in it.......
What's it got for tires????
If you can't handle the truth, you're living a lie.......
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Re: Another race day, and I want to go faster!!!!
[Re: Thumperdart]
#757791
07/30/10 07:40 AM
07/30/10 07:40 AM
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Joined: Jan 2003
Posts: 2,309 Tomorrow.
Damned67
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Thanks all!!! Yep, tuning is certainly on top of the list, and I'll be hitting you all up for suggestions regarding torque converters in a month or so when I'm ready to make a purchase (along with some decent tires!!!)... Quick question though, which is probably better left for it's own thread, but what sort of 'road' mileage are people getting out of their MT drag radials? I'm trying to decide on getting simple MT drag radials (or similar), or a dedicated set of slicks that I'd have to fit onto the car once I drove to the track??? The car will/should see much more road time than track time.
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