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how to make my car faster???

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Old 10-21-2008, 12:32 AM
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how to make my car faster???

ok so I got a 11 second 79 monte carlo, here are the mods
400sbc.030 over
5.7 rods
forged pistions 10.3 to 1
lunati solid lifter cam
angle plug fuelie heads
team G intake
holley hp 4150 850cfm
hei distributor- accel wires
turbo 350- 3000 stall 10'
bop rear 4.11 w/spool
carter electric pump
3'' exhaust/ flowmastes
roller rockers

how can i make it run in the 10s without having to add nitrous of forced induction??? what can be my next step to make it a little faster. car is all gutted out with roll bar should i put a smaller carb?
Old 10-21-2008, 02:48 AM
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Re: how to make my car faster???

The first things i'd try are higher CR pistons and better heads. It doesn't sound like a street car... so you don't even need to run pump gas, so you can have a much higher CR. Fuelie heads are good, but outdated. I'd recommend vortec heads, just over $500 for an assembled pair. Or, if you have a bigger budget, there's a lot more options for heads out there...
That carb sounds great for that motor... If you decide to get rid of it, let me know.
Old 10-21-2008, 10:37 AM
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Re: how to make my car faster???

really??? most people are telling me the carb is too big, and that I should go with a 750 or 650 since the car is making about 480hp. should I run race fuel on it them yeah the car is not a street car but i still take it out to get attention lol.
Old 10-21-2008, 12:28 PM
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Re: how to make my car faster???

yeah, i'd keep the carb, especially if you want to run in the 10's. Race fuel would help you if you get a higher CR. Have a local airport you can get gas from? Remember, it isn't street legal gas. If you start changing things, like heads, you might need a different cam. Someone else could give you better advice on that, though.
Old 10-21-2008, 01:30 PM
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Engine: broken 385sbc
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Re: how to make my car faster???

afr 210 eliminator heads and solid roller 245*+ @ .050 and .550"+

what you shift at?
Old 10-21-2008, 01:37 PM
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Re: how to make my car faster???

march makes a good kit for underdriving an sbc with an elec water pump. thats good for another 10 maybe 15 hp. do you have a cid ignition box?? if ya dont get one if your not in the budget to get different heads try match porting them to the exhaust and intake. also the carb is a gine size but you could try working with diff power valves maybe tweak the air fuel and the ignition curve to try and pull soem more power out
Old 10-21-2008, 02:26 PM
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Re: how to make my car faster???

You are going to need better heads, higher compression, and a bigger cam. To drop 1 second off your ET will require around 100 more HP.

I would shoot for heads the flow in the low 300 CFM range at .600 lift, 11.5 to 1 compression (so you can run pump gas), and a cam with a power band from 3500 to 7000 RPM.
Old 10-21-2008, 08:38 PM
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Re: how to make my car faster???

Originally Posted by bjankuski
You are going to need better heads...
...and you can sell me those nasty old outdated angle-plug heads.
Old 10-21-2008, 08:55 PM
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Re: how to make my car faster???

what are your 11 second times now? what ET, what 60 foots and what trap speeds. give 1/8 and 1/4 mile if you can

that will roughly give an idea of what your making now and where you need to go

to crack 10's you should have 450whp or darn close on a great launch and low weight. That car gutted shouldnt be all that heavy so your doing good there.

those heads are definatley holding you back. A nice set of heads with a smaller chamber to get compression up to 11 to 1 or more, your should see nice gains even with that cam you currently have.

roller cam conversion with good heads so you can run .600 lift or so to take advantage of most good aftermarket heads should be considered to help make that car more driveable and to make more power in the first place. Rollers are smoother operating than tappets
Old 10-22-2008, 03:29 PM
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Re: how to make my car faster???

well i havent take the car to the track yet since im curently fixing all the leaks it has on the motor and tranny, thanks for the tips i will do a head swap and cam swap when i get the money and ill post the fuelie heads, and cam here.
Old 10-22-2008, 03:35 PM
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Re: how to make my car faster???

What are the cam specs for the cam you're running now?
Old 10-22-2008, 07:41 PM
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Re: how to make my car faster???

What does your timeslip look like when you go to the track??
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