ITB's
You would need a EMS or piggy back any ways on a FI setup.
Now Jimmy's ITB have a vacuum canister so you could run a MAP sensor but you would still need to modify the fuel curve by a %Vs pressure because of the increased cross sectional flow path that you get with ITB.
Most ITB do not have this vacuum canister so an EMS is always a necessity because fuel maps would nedd to be based on RPM and TPS voltage only.
If Jimmy's ITB's have a large enough vacuum canister to even out the induction pulses to get a very stable vacuum reading it might be possible to run the stock ECU with a greddy piggy back to increase the injector pulse width by a %.
VolkGT-N you may want to mention this to Jimmy to see if this would be possible.
Just thinking out loud the % fuel factor would be easily set on a Dyno based on A/F post ITB install. Main thing to look out for is maxing out the stock injectors and/or not having enough adjustability on the piggy back to over come the stock fuel curves once the ITB are installed.
One of the main things holding me back from getting a ITB setup is the CARB problems.
If it was possible to retain the stock ECU and use a piggy back to correct the fuel curves then we would at least pass the ECU check for emission testing and if properly tuned the A/F/emissions would be ok at idle.
The PCV (emission control device) could also be plumed in to the vacuum canister to prevent the
Now Jimmy's ITB have a vacuum canister so you could run a MAP sensor but you would still need to modify the fuel curve by a %Vs pressure because of the increased cross sectional flow path that you get with ITB.
Most ITB do not have this vacuum canister so an EMS is always a necessity because fuel maps would nedd to be based on RPM and TPS voltage only.
If Jimmy's ITB's have a large enough vacuum canister to even out the induction pulses to get a very stable vacuum reading it might be possible to run the stock ECU with a greddy piggy back to increase the injector pulse width by a %.
VolkGT-N you may want to mention this to Jimmy to see if this would be possible.
Just thinking out loud the % fuel factor would be easily set on a Dyno based on A/F post ITB install. Main thing to look out for is maxing out the stock injectors and/or not having enough adjustability on the piggy back to over come the stock fuel curves once the ITB are installed.
One of the main things holding me back from getting a ITB setup is the CARB problems.
If it was possible to retain the stock ECU and use a piggy back to correct the fuel curves then we would at least pass the ECU check for emission testing and if properly tuned the A/F/emissions would be ok at idle.
The PCV (emission control device) could also be plumed in to the vacuum canister to prevent the
Originally Posted by s2kjimmybass,Apr 25 2006, 12:24 PM
there goes an extra grand 

Originally Posted by s2kjimmybass,Apr 25 2006, 03:30 PM
is that the price for just the kit, or does it include the install? i'd be curious how much an install would be.



