shitycivicsidekick

Hey guys whats up i just bought a 68mm blox throttle body and was looking to install it but i was wondering if im going to have to get it tuned after i install it or should i be able to make other ajustments with out getting it tuned. ? i have an aem ugo so i would know my a/f a b@m fpr so i would be able to raise or lower the fuel pressure if i needed a little more fuel and the sparkplug gap could also change somethings. Im looking to get any input possible thanks

98exn20

Is your car boosted? If not then you should be just fine with installing the throttle body. And yes you can raise or lower your fuel pressure with the regulator.

shitycivicsidekick

no its not boosted but if install the throttlebody from a 60mm stock to a 68mm wouldent that change my af and cause the car to run a little different? and if it does should i be able to make up the adjustments with the fuel pressure and sparkplug gap ?

shitycivicsidekick

Hey whats up just last week i decided to install my blox 68mm tb on my sk2 mani which i had port matched myself with a dye grinder and i also noticed my hondata manifold gasket was over laping the intake ports on the head and the runners so i decided to clean it up as well to get the smoothest flow of air into the motor.

so now i have everything on running and when i go to start it up it has a low idle and kicks up after i drive it.? another thing ive been wondering about is my a/f changed from running around 13.2 to about 11 im not so sure as to why it would get richer if it were to be getting more air due to the fact its a bigger throttle body? could it be my tps is not zerod out? or the injectors could have been squirting fuel on the overlaping part of the manifold gasket? im going to try and put my old throttle body back on and see if it returns to the way it was and if it does then when i get some more upgrades i will reinstall the throttle body and get it retuned and hopefully that will fix my problems

shitycivicsidekick

up to the top really trying to get this sorted out

shitycivicsidekick

no one has any input ?

mmuller

try setting the tps to correct voltages

GhostAccord

What wide band setup are you using to log/view your AFRs and what are you using to tune your ECU? What injectors are you using, stock 240s or larger?

shitycivicsidekick

they are stock 240s i have a aem wideband o2 i have hondata s100 but do you think that i need a tune if i up the throttlebody size that much ?

GhostAccord

Check your TPS voltage ranges first. But if your noticing a large change in AFRs like that. I would suggest giving it a touch-up tune.

Are you planning on doing any other mods in the near future? If you are now would be a good time to do them and tune everything at once rather than one piece at a time.

blaak-crx

retune time! 60 to 68 mm, means messed up Air to fuel ratio.