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Disingenuous Minion
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Discussion Starter · #1 ·
So I live in Arnold's utopia of CARB heaven: Ghalliphoneeah

Did the Letsla mod, Manly mounts, de-snorkle. NO PROBLEM...passed smog.

Just bought an Arqray SS single tip. Plan to de-cat (but put it back in for road use;)).

Smaller/lighter wheels are a possibility. As is a diet for the driver (100lbs=).

What else can I do to improve non-forced-induction performance that is CARB approved or CARB reversible?
 

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You won't really get any horsepower gains out of "header/exhaust/intake" changes without a customized tune, I'd suggest suspension upgrades, and some track experience.

You could always do some exhaust/intake modification then get the CharlieX N/A tune.

Edit; CharlieX tune being arguably better than the Lotus Sport tune, as it shows both performance gain, and switches the cam-switch point (Which is all the Lotus Sport tune does).
And I believe Charlie's is cheaper, unless you wanna keep your warranty
 

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check out boosted2.0 head work and blackwatch racings oversize TB
Still gonna need soooome sort of tuning, though if I were at sea level, the intake manifold, TB, a header, cup airbox, free flowing exhaust and decat + a custom tune would be pretty damn sweet.
 

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Disingenuous Minion
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Discussion Starter · #11 ·
I did a one day Skip Barber course at Laguna Seca, and agree, more of that would make a huge difference. Think I should get some track time first, then go back for more.

But its more expensive than a supercharger and all the other mods mentioned combined.
 

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You won't really get any horsepower gains out of "header/exhaust/intake" changes without a customized tune, I'd suggest suspension upgrades, and some track experience.

You could always do some exhaust/intake modification then get the CharlieX N/A tune.

Edit; CharlieX tune being arguably better than the Lotus Sport tune, as it shows both performance gain, and switches the cam-switch point (Which is all the Lotus Sport tune does).
And I believe Charlie's is cheaper, unless you wanna keep your warranty
Getting those aftermarket installs and the tune, would this be likely to increase or decrease your gas mileage?

Im thinking decrease as to your getting better performance, and its not due to less gas.... :shrug:
 

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If you're going to keep NA and want to maximize performance, I vote lose the weight.

There is so much extra weight in these cars - seats, steering wheel, air bags, speakers, a/c, etc., etc....

One of the fastest guys in our LCS series has an NA Elise that is super fast due mostly to gutting it out.
 

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significant power + carb = sawzall !
Well your doomed if even charlie says to use the sawzall :tadts:

I have one really cool idea ITB's with open trumpets. Think a company called Trial in Japan made a kit. It'll be scary though when you realize the intake makes more noise then the exhaust.
 

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Disingenuous Minion
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637 Posts
Discussion Starter · #19 ·
Just wondering, why not use forced induction?
Can't pass the smog test in CA without CARB approval on the supercharger or turbo setup. No aftermarket supplier (that I know of) offers CARB approved systems. Rumour is that Lotus will offer one, but very expensive for not much gain.

Therefore looking to stick with the spirit of the car (and remain street legal in CA), and go for N/A and weight reduction.
 

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The lotus one isn't all THAT expensive, considering you keep your CARB cert and more resale value... did you even look to see how much it is? :p
 
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