Re: Suggestions on improving top end performance
[Re: PC-CHARGER]
#1513038
10/06/13 11:39 AM
10/06/13 11:39 AM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 715
Central TEXAS!!!!
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if it was my car i would tighten up the bump on the shocks, in order to hold more pressure on the tires longer. At your ET you really need to get a good set of double adjustable shocks, it will make a big difference.
Joe
Without Data, you’re just another guy with an opinion.
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Re: Suggestions on improving top end performance
[Re: FastmOp]
#1513041
10/07/13 01:16 PM
10/07/13 01:16 PM
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Joined: Jan 2003
Posts: 19,372 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,372
Las Vegas
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Can you post up a scrfeen capture of the data log? Maybve shots with the RPM and DS speed and then one showing fuel poressure, afr and accel G's?
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Suggestions on improving top end performance
[Re: PC-CHARGER]
#1513043
10/08/13 12:48 AM
10/08/13 12:48 AM
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Joined: Jan 2004
Posts: 903 Saskatchewan, Canada
cudabin
super stock
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super stock
Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
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post a screen shot of the MSD review and let us have a look...
I just put 4 runs on my new grid set up and think it is going to be great!
Are you running any launch retard to reduce the wheel spin on a marginal track?
Cheers,
Arnie
67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...)
70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.
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Re: Suggestions on improving top end performance
[Re: PC-CHARGER]
#1513048
10/10/13 08:22 PM
10/10/13 08:22 PM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Looking at the data from a number of passes and I think we're loosing some ET on the top end. Here's the incrementals
60' 1.23 330' 3.51 660' 5.36 1000' 6.95 1/4 8.29 MPH 166.8
Seems that the 8.29 is a bit slow for the 5.36 1/8 mile ET. MPH would seem to indicate a better 1/4 ET as well or do these numbers look OK?
Also the data is showing some wheel spin after the 60' and before the 1-2 shift (727 torqueflite). It's a four link car, wheelie bars and non-adjustable shocks. Car sits back nice and square on the wheelie bars at launch and the front wheels are back on the ground before the 60' mark. Wheels spin starts shortly thereafter for a bit and once we grab 2nd, no more wheelspin. Any hints on how to reduce the tire slip at this point? [/quot
IMO, from the numbers, I think you have it backwards. Your top end performance is fine. Your soft on the 60 ft. and 330.ft and okay on the 1/8th After that your numbers are great or better then they should be by .25 IMO , but you are running a power adder.
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Re: Suggestions on improving top end performance
[Re: PC-CHARGER]
#1513050
10/14/13 02:03 AM
10/14/13 02:03 AM
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Joined: Jan 2004
Posts: 903 Saskatchewan, Canada
cudabin
super stock
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super stock
Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
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I think you are loosing a lot in the first 60 feet... My best 60 foot is 1.18 when the traction was actually good at SIR, but it runs 1.19 - 1.20 sixties if track is just average...
My review looks similiar with peaks and valleys in first and second due to tire slippage, but climbs stright in third gear.
You are much faster than my cuda, so you should be able to pick up your 330 IMO.
Good luck!
Arnie
67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...)
70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.
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