ITB's MAF not needed?

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Bollox
MegaSquirt Newbie
Posts: 9
Joined: Sat Sep 22, 2007 6:37 am
Location: Titusville Florida

ITB's MAF not needed?

Post by Bollox »

Please see photo below, can I run MS II V3 and disable the MAF portion?
Image

Also what tuning help can anybody give on the above.

Thanks

Stuart
Where the rockets go up and hopefully along the road also
Bollox
MegaSquirt Newbie
Posts: 9
Joined: Sat Sep 22, 2007 6:37 am
Location: Titusville Florida

Re: ITB's MAF not needed?

Post by Bollox »

OK figured it out, after reading a few hundred pages of instructions.

Thanks for looking, I thought the MAP would have to be in the ITB, not in the MS, I was thinking, how I'm I going to hook all of these things together.

Sorry

Stuart
Where the rockets go up and hopefully along the road also
Matt Cramer
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Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: ITB's MAF not needed?

Post by Matt Cramer »

We've tuned a couple ITB engines without a MAF. It depends on just how aggressive the cam is which fueling method to tune, but we've seen some that ran happily on pure speed density tuning. Others needed a blend of speed density and alpha-N, and all out race motors sometimes work best purely on alpha-N.
Bollox
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Posts: 9
Joined: Sat Sep 22, 2007 6:37 am
Location: Titusville Florida

Re: ITB's MAF not needed?

Post by Bollox »

Matt I'm going to start with stock cams and see how it reacts with the EFI, if thats good enough for the street I may leave it there I want to be able to drive it with out carrying 3 sets of plugs or have to rev it past 3K just to pull away from the light.

If thing work out OK and feels like it could do with a bit of punch I will have a set ground to meet my requirements.

This is all highly experamental this engine has been MS by guys in OZ but not with ITB's and EDIS so the learning curve will be vertical. Toyota dod EFI this engine in the last few years of it's production but the controller was very basic and there was that much emissions on the thing it had reduced the BHP by 15%

When the engine first came out it was 140 BHP stock, but people fiddled with it and look 200 BHP on Carbs. I have dine a lot of internals to this engine so who knows what to expect, we shall see. for the sake of history the 18RG was the model they based the 152E on and thats a monster
Where the rockets go up and hopefully along the road also
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