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TB 4.2 Staright Gas Snorkel?
Posted: Tue Aug 19, 2008 6:18 pm
by Trunt88
Hey Guys, Ive Been Reading this forum for ages now and i have finally bought a 4WD. Its a 91 Ford Maverick tb4.2 on staright gas with 2in body lift, 2 inch coil lift with rooted Gabriel Blue Rider Shocks and 33in Gt Radial Savero Mt's.
My Question is, If anyone has done or knows how to Modify the air intake of these to suit a snorkel system, It has an Impco 300a system and as such the air intake has been modified to suit this and has really made it look difficult to fit a snorkel and actually have it seal up.
Does anyone have any thoughts or suggestions?
Posted: Tue Aug 19, 2008 9:54 pm
by PGS 4WD
You need a balance line and a retune on the dyno or it will lean out at high speed cruising and may have a tendancy to stall when pulling up form speed.
Joel
Posted: Wed Aug 20, 2008 7:11 am
by Trunt88
Ok... Wow well how much would you think i might be looking at roughly for the dyno and stuff...?
Posted: Wed Aug 20, 2008 8:15 am
by create
I have total LPG on my GQ. I have an Airod system and it doesnt need a balance pipe. I have no problem with it stalling. I am using a EFI manifold too. I have a mate who has a GU and he has a Impco 225 and has no porblems either.
Posted: Wed Aug 20, 2008 10:00 am
by naif
my gq is duel fuel, impco 200 mixer and 300A(i think) converter and dosnt currently run a balance pipe. ive often wondered if it needs one as it does have a snorkel.
Posted: Wed Aug 20, 2008 11:08 am
by jessie928
if your snorckle is sealed properly and slightly Pressurising the intake ( the diaphram in the mixer) you need a balance tube!
as the gas man pgs says, it will lean out!
Jes
Posted: Wed Aug 20, 2008 10:50 pm
by PGS 4WD
If the mixture is set too rich you may not experience the symptoms as I described but the fuel consumption will be poor. The intake will pressurize and without a balance line to equalize this on the converter it will lean out! Your petrol carby has a balance line built into the top that vents to the fuel bowl, it is a requirement that the pressures are equal for a good and consistant tune.
Joel