Not happy with drag strip results, need tuning sug

[NeedToGoFASTER]

I found a useful trick for getting the timing halfway accurate despite the fact that there's only marks for 14, 16, and 18.. Use an "Advance Timing Analyzer" (available from Sears or Auto Zone). Just line up the TDC mark and read the timing off of the dial on the gun. I put white-out on the crank pulley and timing arrow on the timing belt cover, and it was a piece of cake to time it right.

Richard

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98 GSR driven everywhere.
Akimoto intake, MSD 6a, Magnecor 8.5mm, Autometer A/F,Boost,F/P, B&M F/P, NGK BKR7E, JRSC, JR MAP Mod.
Ex-Squeezer.

[lilmikey77]

I'll pick up one of those timing guns next time I'm out... but, what should I set my timing at?

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fuknboostn

[strng1dah]

you could probably do 10deg.

Even with all that wheel hop you still got a decent 60' time.

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2000 No Longer SC'd GSR
www.Strng1dah.com
www.Chris_Turbo.com

[Holden]

I wouldn't blame the ignition timing right off the bat. One night last fall I ran 13.9's all night with not much different a setup. (6psi, 8 degrees timing, no electronics at all, street tires, 60 degrees).

The fact that your trap speed is only 94.54mph tells me that you are not making anywhere near the power you should be making. I was getting a trap speed of 101mph at 6psi.

Regardless of what I ran, you should be able to get at least 98-100mph trap speed with a GSR JRSC @6psi.

I'd say you need to open the bleeder on the cartech and lean out the fuel at full boost. Do you know what fuel pressure you're hitting? I'd recommend 94psi max for your setup.

That in-car FP gauge is crucial to tuning. Go get one!

As for improving your E.T.'s, drop tire pressure in front to 18psi and crank it up in back to 50psi. If you have adjustable shocks, go full soft in front and full hard in back.

The hookup in 2nd gear is critical. If you can get 2nd gear to hook up without any spinning, you are doing well. That's the last hard part of the 1320. I'm sure you know all about the importance of the launch, so I won't go there.

Again though, you are way down on power from where you should be. I just went to a HP estimator and guessed that you and the car weighed 2750 pounds at the track and it estimated:

"Using the ET method, I come up with 174 horsepower
Using the Speed method, I come up with 181 horsepower"
http://www.dsm.org/tools/calchp.htm



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Greg Holden
96 GSR, JSRC @10psi, All the Goodies!
Best 1/4 ==> 13.556 @ 105.29mph
My JRSC Install Site

[2kbill]

Mikey,

I'm a newbie at the track this year, but I think that for the avg. joe w/6psi GSR, mid-low 14's are about all we can expect. Last nite the best was:

ET 14.54
60ft 2.21
330ft 6.17
1/8 9.42
Speed 96.46

Best trap speed last nite was 99.29. Last week it was warmer, but I ran better, 2 runs of 14.4 @ 98.89 & 96.15.

I'm thinking 8# crank pulley, header and cat are in my future. Wish I had money for a Hondata and all the trimmings!


Bill

<edit>
I also think that 18# driver side, 20# passenger will help out on your traction and your wheel hop.

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[This message has been edited by 2kbill (edited September 29, 2001).]

[Tom Civic]

my car isn't doing well either 16.3 at 82mph.

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Houston, TX
1999 FBP Civic EX auto SUPERCHARGED Performance: Jackson Racing Supercharger w/fuel pump
Air Intake w/ Hiper Filter, Heat Shield Thermal Research & Development Cat-Back Exhaust, Accel Thundersport +300 Plug wires, Nuespeed Sport Springs, APC Rear Strut Tower Bar, APC Breather Filter, VTEC Light
www.geocities.com/tom_civic99

[waveoff]

Tom, that's not too bad of a time with an auto EX. I used to run 16.3 with my manual EX before I finally tuned my car and learned how to drive a little better. I'm finally running consistent 15.8's and even pulled off a 15.5 last night. Mike and I showed the riceboys a thing or two last night. All of the fast imports looked somewhat stock and all of the riced out cars were really slow. Those guys with all of the vinyl graphics and neon lights were probably scratching their heads.

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Fred G.
'97 Civic EX supercharged http://www.geocities.com/motorcity/track/4059
Beech 1900D driver...2,558 shp, 10,000+ ft./lbs. tq., top speed 331 mph

[CivicR]

lilmikey77...If I were you I would get my car dynoed with a wideband 02...like said earlier that most GSR's at 6psi hits trap speeds around 99-100mph...there doesnt seem to be anything major wrong with your timeslip that would lead to a low MPH....so the answer would probaly be that you are not making as much HP as you should be...checkit out on the dyno...you will be suprised how much HP you can gain by having tuned perfectly!...good luck!


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John
B18C1 Powered 95 Civic EX Coupe (sold)
H22A Powered 92 Civic VX Hatch(In the works)
88 CRX HF(Coming soon)

[lilmikey77]

I'd say you need to open the bleeder on the cartech and lean out the fuel at full boost.
I'm using the JR FMU

Do you know what fuel pressure you're hitting? I'd recommend 94psi max for your setup.
Its 58 static, around 50 idle and it seems to max around 88 according to my short-sweep autometer

That in-car FP gauge is crucial to tuning. Go get one!
Got one

As for improving your E.T.'s, drop tire pressure in front to 18psi and crank it up in back to 50psi. If you have adjustable shocks, go full soft in front and full hard in back.
I'll drop my front tire pressures more next time. I got Bilsteins (non-adjustable)

The hookup in 2nd gear is critical. If you can get 2nd gear to hook up without any spinning, you are doing well. That's the last hard part of the 1320. I'm sure you know all about the importance of the launch, so I won't go there.

Yeah, its definately going to take some practice to get the launch and the shifts down.

[This message has been edited by lilmikey77 (edited September 29, 2001).]

[Holden]

Sorry. I misread your mods.

I really doubt you are only hitting 88psi max FP with a JR FPR. Something sounds wrong. Either the vacuum hose to the JR FPR is not feeding it enough vacuum or your FP gauge is not accurate.

I've had FP gauges go bad myself. It's possible.

Do you know what boost you're getting? Maybe your only making 5psi in the manifold and that's why power and max FP are low.

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Greg Holden
96 GSR, JSRC @10psi, All the Goodies!
Best 1/4 ==&gt; 13.556 @ 105.29mph
My JRSC Install Site