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NMCA EFI Class Need to Drop .3 Seconds

This is a discussion on NMCA EFI Class Need to Drop .3 Seconds within the Firebird / WS6 forums, part of the Vehicle Specific category; Im gonna try and race this class in the 2012 season. It is an index class and I would go ...

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    Member TA98's Avatar
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    NMCA EFI Class Need to Drop .3 Seconds

    Im gonna try and race this class in the 2012 season. It is an index class and I would go for the 12.0 class. Im currently running consistent 12.32's I have to have a full interior to race also. Current mods are 4000 convertor, 3.73's, Full Exhaust, tune, tubular k-member and lower a-arms, LCA's and brackets, Lid. I know I can drop a little time with race gas and more tuning. Also could get rid of power steering pump to lessen some drag on the engine. What else do you all think could be done to get me closer to a 12.0.

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    I havent looked at the nmca classes just mostly lsx series stuff.. You say full interior.. What does that consist of? Some classes full interior sometimes mean just no bare metal. You could take off your ac or just the belt when you go to the track. big and littles, intake upgrade? You looking to spend money or try to do free stuff?

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    I have a drag wheel and tire set up. It says dash, carpet and all factory panels and seats must be installed. You can remove the back seat if a cage is installed. I always have the ac belt off also. Im looking morre at suspension stuff more than motor. Id like to wait on the motor stuff for when i begin to build my new engine later this year

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    Our cars sound similarly set up -- other than the fact that my tubular k-member and suspension arms are still in the boxes. We currently run 12.4's in good air. Have you thought about swapping out the front bumper support and such for the Burkhart Chassis tubular piece? What springs and shocks are you running?

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    still running stock springs annd shocks. I had looked at getting QA1's and their springs but wasnt sure if at my power level its really necessary

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    How about a tunnel mount torque arm setup? Our car hooks great coming off the line with it and I am seeing 1.6 second 60' times.

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    That was actually on the list to get within the next few weeks. Did you notice a difference in 60 ft's. currently im getting high 1.6's or low 1.7's

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    I never ran ours with the drag tires and stock torque arm, so can't really say what the difference would be. It does change the instant center though and certainly plants the rear to the pavement in our car when I launch it.

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    Well I was gonna get one anyway so well see if it makes a difference. I may be spinning just a little off the line and just don't realize it. Do you believe the .1 sec difference they claim drag springs make?

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    Anything that helps with weight transfer or planting the rear is going to be beneficial. We would probably both realize more of a difference though with higher horsepower and torque levels than what our stock engines are currently producing.

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    I think im gonna grab a set of QA1 springs and see if they make a difference before dropping 600 dollars on shocks.

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    weight reduction!

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    From reading on here and other places, I've seen pretty significant 60' time decreases just from the addition of an adjustable aftermarket torque arm and dialing in the pinion angle.

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    If i could drop a tenth in the 60' with a torque arm and springs that would put me pretty close to a 12.0.

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    Quote Originally Posted by T/A98 View Post
    If i could drop a tenth in the 60' with a torque arm and springs that would put me pretty close to a 12.0.
    I'd agree with you there. Rule of thumb as I'm sure you know, for every 1/10th you drop off your 60' that's about 2/10's off at the other end.

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    exactly. with race gas and a little tuning i think id be right where i need to be.

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