What's the max displacement stock L-jet can handle? |
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What's the max displacement stock L-jet can handle? |
newto914s |
Mar 4 2007, 02:30 AM
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#1
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Senior Member Group: Members Posts: 561 Joined: 16-February 04 From: Thornton, CO Member No.: 1,663 |
I know that because of the Air mass sensor on the L-jet it can handle some slight increases of displacement without too much trouble. Engine sucks in a little more air and it compensates with-in reason.
So I'm wondering where the line is if you just increase the bore size where the L-jet will not be able richen the mixture enough. 96mm, 100mm, 103. I've heard some guys use the 1.8 L-jet on the 2.0, so a 10% increase. So if your starting with a 2.0 bus L-jet system it should be able to handle 2.2 liters, right? |
Bleyseng |
Mar 4 2007, 03:30 PM
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#2
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Yes, you will have to adjust the spring tension on any big changes in airflow/CR as the vane will just peg.
If you can't get enough fuel using the 1.8/2.0 Ljet injectors you would have to find some off another brand of car. See the Bosch injector charts. Change the fuel pressure? Hmm, its already a variable fuel pressure regulator as that vacuum line going the plenum adjusts the fuel pressure as the engines manifold vacuum changes. 0hg is wide open throttle so is full pressure bout 39psi 15hg is idle so normal pressure at 29psi My guess is you could do a 2270 motor without a big cam and make it work with some tuning. You would have to use the 914 runners and a bus plenum as the other stuff is just to little. |
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