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Video of a run

Mike Gaines

Mike Gaines

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WARNING: This video may be disturbing to true Mopar Enthusiasts. (LOL)
Video of a 1010HP Hemi being limited in performance by having a 7000rpm MSD chip installed.
Motor hit 7000 about 60' off the start line and shifted from 1st to 2nd.
Motor then hit 7000 again about 250' off the start line and shifted from 2nd to high gear.
Motor hit 7000 rpm in high gear at about the 330' and ran the balance of the
1/4 mile (about 1000 feet) bouncing off the 7000rpm MSD chip.
I guess I will have to get some larger chips next time I run the car. (LOL)
 
Last edited:
can't access the video

might be running 'right thru the converter' too
to loose ???? not the correct converter, for your needs

sounds like the engine maybe making good power

But;
we/I don't know
we/I don't have permission to view your video as it's formated

sounds like an aftermarket Powerglide 2 speed
may be a better option (sacrilege I know)
tame it down a bit, early & still run like a M-fer out the back

a taller rear tire/slicks & less gear may help,
but it will only get slightly better

really depending on how much less gear
& how much more tire you can fit
 
upload_2019-12-30_23-44-20.png


It's showing up now. Thanks!
 
Last edited:
I can see video. Seems like there needs tosome changes besides the chip. 1,000ft of 7,000 rpm ?
 
Normal...these hemis that make good power needs to be shifted quicker than normal.
I'm in 2nd gear in the air at or before the 60 foot beams.
A second later and I'm in 3rd gear.
Perfectly normal!
You'll get use to it!
 
Fran Blacker said:
I can see video. Seems like there needs tosome changes besides the chip. 1,000ft of 7,000 rpm ?
Click to expand...
No question about needed changes...I could only get basic info from making shakedown runs like this.
The car was setup like this for that run that is on the video:
1. Left @2500rpm off the footbrake, transbrake not used.
2. Variable restrictor plates under each Dominator shutting down 50% of fuel/air mixture.
3. Shifted 1-2 and 2-3 at 7000rpm.
4. Height of wheels on wheelie bars not yet determined. Bars were hitting too soon and unloading rear tires.
5. Correct air pressure for rear tires not yet determined.
6. 7000rpm chip installed
My thoughts are this:
1. Probably 9lbs of air in slicks.
2. Wheels on wheelie bars set around 9" off the track to allow the slicks to bite without unloading the rear suspension.
3. Leave the line off the transbrake at 5000rpm.
4. Open up restrictor plates all the way open with NO restriction.
5. Shift 1-2 and 2-3 at around 6400.
6. Install a 7500 top end chip
7. I lose about 600 rpm on the shifts so shifting into high gear at 6400 then the motor would fall back to around 5800 then the motor would have the 1000 feet (plus or minus) to spin up from 5800 to 7500 rpm before the finish line.
Input from guys smarter than me is always appreciated (and needed).
Thanks
 
AndersonTommy said:
Normal...these hemis that make good power needs to be shifted quicker than normal.
I'm in 2nd gear in the air at or before the 60 foot beams.
A second later and I'm in 3rd gear.
Perfectly normal!
You'll get use to it!
Click to expand...
I now agree with your post 100%.
But, question is, how big of a top end chip do you have installed and what do you go thru the lites at ? I don't have a problem spinning this motor up. Is a 7500 chip big enuf NOT to hit the chip before the lights.
Input please....thanks
 
In the future maybe you can get someone with an outside camera to record your launch. That will help with your suspension setup.

That engine sounds so smooth. I can't give any advice on the electronics. Last experience I had with that was running Super Comp and lots have changed since then. Watching your video it looks like the car doesn't weight anything!

Good Luck with your new ride!
 
There's no way you should be on a 7000 chip at 139. Either the chip is low or the converter is incorrect/broke. In the video it looks like the rpm only falls back about 250 on the shift. My bet is the converter is to loose. With that much power an 8" isn't going to cut it.
Doug
 
Last edited:
Mike Gaines said:
I now agree with your post 100%.
But, question is, how big of a top end chip do you have installed and what do you go thru the lites at ? I don't have a problem spinning this motor up. Is a 7500 chip big enuf NOT to hit the chip before the lights.
Input please....thanks
Click to expand...



Mike, I have a 7800 chip in mine. I shift at 7400. you wont hurt the motor going to 7800 if you over rev it. I cross the stripe at 7600. my new engine, I have no idea yet. Will find out in April.

hemi 622 1.jpg
 
Mike I run 6000 stall 8" converters in all my engines. Best et is 8.57@164mph.
During the year 8.60s- to low 8.70s depending on DA. 8 inch converters rock!

black coronet2.jpg
 
I have no qualifications to offer advice, but it seems like you need a lower numeric gear ratio and/or taller tires?
Also the converter slippage should be confirmed as to whether it is working properly, and I'm a 3 pedal guy, so I have no idea, but the earlier comments make sense.
Awesome car...
I mean (YET ANOTHER) awesome car Mike!
 
Pretty tough to get a 8" tight enough when the motor makes torque down low. I've run 9" that stall as high as 6400. I guess in my stuff the peak is only 7200. The bottom line is watch Mikes run. In my eyes there is nowhere near 600 rpm drop on the shift on the video. Am I incorrect? Now if hes going to run it to 8000-8500 could be a different story. Still on a 7000 rpm limiter it should have been well up in the 145-147 mph range. There's a lot of slip there. Or the tach is off.
Doug
 
dvw said:
Pretty tough to get a 8" tight enough when the motor makes torque down low. I've run 9" that stall as high as 6400. I guess in my stuff the peak is only 7200. The bottom line is watch Mikes run. In my eyes there is nowhere near 600 rpm drop on the shift on the video. Am I incorrect? Now if hes going to run it to 8000-8500 could be a different story. Still on a 7000 rpm limiter it should have been well up in the 145-147 mph range. There's a lot of slip there. Or the tach is off.
Doug
Click to expand...
Doug, The converter is a 9". I had it out and measured it when I freshened up the tranny.
If it makes any difference (I don't know) the trans has an Aluminum Drum NOT a billet steel drum.
 
I think he needs to run it flat out wide open,9000 chip, no restriction on the carbs and see what he has. The carb restrictors and 7000 chip could be giving misleading information.
 
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