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Back from the dragstrip with a new best for me...

 
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Old 06 Oct 2003, 09:20 am
Cool Cruiser
 
Join Date: May 2003
Location: Prineville, Oregon, USA.
Posts: 386
Default Back from the dragstrip with a new best for me...

My previous best was a 14.64 without stage 1, but with a drop-in K&N filter and a MBC adjusted to 16#s boost.

Saturday I arrived at Woodburn Dragstrip with Stage 1, the drop in filter, and a PT-Tuning axle-back exhaust. After making a couple of tire pressure adjustmets and running with the trac-contron on and off I found the best times to average 14.77 at 96 MPH. That was 25#'s front tire pressure and the trac-control on. This was actually a .14 second REDUCTION with my previous best running a MBC. Oh yes, I did try re-installing my MBC and as posted on the SRT4 forums it had me running more boost ...but NO increase in HP and NO reduction in ET. The two are NOT compatible.

Disappointed I decided to do the "spring trick" and after installing a double return spring for a carb on the WG actuating arm I was rewarded with a new best of 14.40 at 96.41 MPH.
How about that...almost 3 tenths for a $6.00 spring set!!![8)]

Deen
P.S. 3BarBoost, What does your "racepipe" consist of? No Muffler?
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Old 06 Oct 2003, 01:04 pm
Senior Cruiser
 
Join Date: Jun 2003
Location: Alvaton, GA, USA.
Posts: 1,162
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Hyracer -

Do you have a part # and/or source for the spring you used?

Which MBC are you using ?
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Old 06 Oct 2003, 06:45 pm
Cool Cruiser
 
Join Date: Jul 2003
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Quote:
quote:Originally posted by hyracer



Deen
P.S. 3BarBoost, What does your "racepipe" consist of? No Muffler?
That's proprietary . No helper springs or anything else for that matter.
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Old 07 Oct 2003, 09:49 am
Cool Cruiser
 
Join Date: May 2003
Location: Prineville, Oregon, USA.
Posts: 386
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TripleJack,
Whoa, the spring set has gone up...I bought mine about 10 years ago. They now list for $8.49 in Jegs. Mr. Gasket # 720-19. The spring set has to be stretched fairly tight to get it to work. I'm not leaving it on for normal day-to-day driving, just for track-time. I'm not currently using the boost-controller now since it doesn't work with Stage 1...don't remember the brand but it only cost $50

3BarBoost,
Is the pipe scheduled for production? Sounds like we'll need an upgrade for Stage 2 anyway.

Deen

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GT, 5-Spd, K&N filter, Stage I, AGP 3147 Big Turbo, DTEC Fuel Kit, Tial WGA, Greddy Profec EBC, DCR 55mm TB, 05 Plastic Manifold, 180 Deg. Stat, CCA FMIC, AMX hard-pipes, Water-Injection, STS shifter, Needswings 3\" DP w/dump and Borla Cat-back, BG Drop Springs, Eibach Sway Bars, Panther alloys & Eagle F1 Max-Performance Tires. Best run to date...12.93 @113.45MPH.
77 Blown Vette-runs 10\'s @ 136 MPH.
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Old 07 Oct 2003, 02:20 pm
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Join Date: Jan 2003
Location: Honolulu, HI.
Posts: 86
Default

I got a pack of assorted pull strings from Checker Auto. Used one of the shorter springs and attached it to a small turnbuckle (sp?) so that I could adjust the tension as needed.

Aloha,
Mark
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