$2 mod for SP, 157kw atw

Engines, Transmissions & Final Drive questions and answers

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jules
Guitar Hero
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Re:

Postby jules » Wed Nov 14, 2007 11:02 am

AJ wrote:
jules wrote:
Boags'MX5 wrote:
jules wrote:Oh, so the SE is huffing and puffing out 105kw already on the mod.
Wow.

Jules


:lol: :lol: :lol:

I peed a little. I love you Jules.


And I you, Boags :lol: :lol:

Jules


get a room :P


Can't. You and Wayne are performing "nut sack" cutting apparently :shock: :shock:


Jules
Founder of the Gold Coast Chapter of the Honourable Brothers of Dodgy.
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blackster
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Re:

Postby blackster » Wed Nov 14, 2007 2:55 pm

Marty wrote:
blackster wrote:
Marty wrote:I did it and went from this before mod

to this after mod :shock:



Is there any particular reason why the pre run was done in 4th and the post run was done in 5th?

If your trying to get accurate power gain/loss figures, you would assume that the power runs would be done back to back and in the same gear.


I know they were in different gears and not back to back as I didn't have the chance but it is an indication of a noticable increase. Even without the dyno confirming more power it can easily be felt.


I dont doubt there is gain. Although, a 1 psi increase that gives 26rwkw irrelevant of inconsistent dyno factors is a little difficult to swallow.
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04' MX5 SE.
02' MX5 Classic ed.

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Benny
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Postby Benny » Wed Nov 14, 2007 4:50 pm

When I did this mod to my SP, the difference could be felt through the seat of the pants.
It just revved harder and the boost gauge went up by around 2 lbs, so it really does work.

On a club dyno day, my SP put out 152.2RWKw and standard SP's were putting out around 133-145 RWKw, so it must make a measurable difference.

Go ahead and splurge out for the $2.50.
If you're not happy with it, it's easy to reverse.

The only downside I noted was that the engine did jerk around when backing off the throttle while under boost, but SP's do that anyway and you learn to drive around it.
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ALWAYS RUNNING, SP with Bilstein Coil Overs and Doof Doof sound. Member of the Fat Bastards Racing Team


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