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3.7 v 4.11


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#1 _BULEBOSS_

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Posted 25 March 2013 - 11:03 AM

Will I gain anything if I swap from 3.73 too 4.11 Diff gears.

I have gone 12.6 @ 108 with 1.85 60ft

 

Thanks



#2 rexy

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Posted 25 March 2013 - 05:04 PM

What rpm do you make peak power at and which side of the peak are you currently on as you cross the finish line?

#3 _BULEBOSS_

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Posted 23 April 2013 - 07:52 AM

I cross the line at 5500rpm, I think the cam tops out at 6200rpm.

Just wanting to run 11.99 and wondering id 4.11 or 4.3 would get me there.

Std stroke 308



#4 wot179

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Posted 23 April 2013 - 08:12 AM

Nope,gears wont get you there,you need more horsepower.

 

108mph isnt enough



#5 TerrA LX

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Posted 23 April 2013 - 09:49 AM

Is it crossing the line sounding real strong or does the engine start to sound flat about 100metres from the finish?
You would be surprised how a little fuel surge and a weak spark can hold you back.

#6 _BULEBOSS_

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Posted 23 April 2013 - 09:53 AM

What MPH do I need to crack into the 11s



#7 _BULEBOSS_

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Posted 23 April 2013 - 10:02 AM

Yes it still sounds strong at the finish.



#8 wot179

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Posted 23 April 2013 - 10:24 AM

112-113 mph or there abouts.



#9 wot179

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Posted 23 April 2013 - 10:28 AM

MPH is a good indicator of horsepower...changing diff gears will alter your ET but will not effect your MPH by much at all.

 

 

You need another 40 or so at the treads to run an 11.



Have a bit of a fiddle here.  http://www.tciauto.c...ng-calculators/






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