tuning maft pro

[dsmcolt969]

ok soo im having some problems tuning my car...does anyone local know how to tune pretty well with the maft pro...its the super duper fancy version. thanks for any and all help

 

[1ghaaaaaw]

Id say bite the bullet and have pina motorsport dyno tune it.

 

[MY1GDSM]

ok soo im having some problems tuning my car...does anyone local know how to tune pretty well with the maft pro...its the super duper fancy version. thanks for any and all help

What are you having trouble with? and are you running in SD mode?
Have you tried posting on Fullthrottletech.com?

 

[dsmcolt969]

What are you having trouble with? and are you running in SD mode?
Have you tried posting on Fullthrottletech.com?

no its not in speed density mode. and the problem im having is fuel cut issues. I should have enough fuel with 510s and a rising rate regulator for when it creeps to 20 psi. and I thinks maybe its over running the maf soo maybe playing with the maf settings could change that? I just need someone who knows what there doing. also here in a few days im gonna toss in 750s and check if that does anything because by my math 510s should be good

 

[MY1GDSM]

If your your using a Gm maf you are not out running it. ... do you have the stock maps/chip...? If so try setting it so you it does not output higher then 1608hz not the best way to deal with it, but if should work..

 

[dsmcolt969]

ya stock ecu I just need it to run right till I can save up for link. soo ill try that and see

 

[MY1GDSM]

If you have not already I would do a Boost leak test That would help ALOT if you have any leaks... O and Go Buy a IAT and map sensor no point and running Pro if your not gonna goto SpeedDensity

 

[dsmcolt969]

I know I should but I dunno what to do and what wires to hook up because I bought it with it on it.

 

[MY1GDSM]

Its not very hard... just pick up the harness...it goes from the stock Maf harness to the the two sensors. ...

 

[dsmcolt969]

oh damn that makes me feel stupid what would you recemend sd or go with link? which would be easier to tune

 

[MY1GDSM]

oh damn that makes me feel stupid what would you recemend sd or go with link? which would be easier to tune

Save some money and just get one of Jeff's chips(If you plan on getting some big injectors)...you already have something to tune with...

 

[dsmcolt969]

hmmmm might just have to send my non eprom off to get the conversion done and a chip and see what's up then...damn money pits

 

[LucasEnglish]

Should be able to tune the car fine with just the MAFT Pro and no chip. Fuel cut happens when the DC is to high so removing it is just dangerous. Our 10.8 16g auto was on stock ECU with just a MAFT Pro.

20psi with all the right mods could be at about the limit of 510s. Can only jack fuel pressure so high.

If you ever make it in to the Portland area we would be more then happy to look at it. MAFT tuning start around $100.

I have tuned and installed over 15 MAFT pros and been tuning them since they came out.

English Racing

 

[dsmcolt969]

soo lucas, what would you recemend as far as injectors for a 16g creeping to 25psi and I plan on running meth in not too long. no ware near as much as you guys like to run but somewhare around a m10 nozle. and I you auto car speed density or just gm maft

 

[MY1GDSM]

dsmcolt969
be sure not to confuse "fuel cut" with engine misfires or knock-induced timing retard. or even running to rich, Fuel cut feels the same as if you hit the Rev Limiter where as the others feel more like rough acceleration and/or the car is being held back, I would asume that you already now this but I figure I'd put that out there, What type of Ecu is in the colt anyway? 1g or does it have a turbo colt ecu?

 

[Chris91dsmtalon]

What causes fuel cut?

 

[LucasEnglish]

Fuel cuts happens around 110-120% DC on the logger depending on temp and barro. 510s should be enough for 20psi. Most 16g cars I just run 550s on pump or race gas. If you are really pushing the limit on race gas with all the right mods you could go 650s

Our auto car is Map but Maf is not a problem either. Our 10.1@142 620hp FP3065 car runs on Link and GM MAF.

M10 will be worth 2-3 psi worth of fuel depending on Meth pump pressure.

Fuel cut is violent wants to toss you through the window.

I would say 550s and a M15 will get 25psi on a 16g fine.

 

[MY1GDSM]

What causes fuel cut?

http://www.dsmtuners.com/forums/frequently-answered-dsm-questions/186971-what-fuel-cut.html

 

[MY1GDSM]

Should be able to tune the car fine with just the MAFT Pro and no chip.Our 10.8 16g auto was on stock ECU with just a MAFT Pro.
English Racing

Could of swarn that in the list of mods, in that vid you guys posted.That a Keydiver chip was one of them. ...maybe it was later. ... O well, Either way it's a Bad A$s A/t....

 

[dsmcolt969]

ya its definatly fuel cut its kinda like hitting a brick wall. but im just gonna get some evo 560s and run some meth with a keydriver chip and tune from there. now I gotta figure out what's ging on with the wideband. I wish english wasn't soo far away

 

[MY1GDSM]

ya its definatly fuel cut its kinda like hitting a brick wall. but im just gonna get some evo 560s and run some meth with a keydriver chip and tune from there. now I gotta figure out what's ging on with the wideband. I wish english wasn't soo far away

I would just go as big as you can with injectors, if your gonna get a keydiver chip. that way you don't have to spend the money again when you max them out...
I may make it up to the next meet up north pretty soon maybe I can look at what you got goin' on atleast make sure every thing is set up safe...

 

[LucasEnglish]

The 10.8 was with the chip but the no meth inj 12.0 were with out. We only have the chip so the car will rev higher.

 

[dsmcolt969]

its a 90 dsm ecu and but now my wideband acting up its reading 7 or 22 checked all the connections and there tight andjust replaced the sensor. but sometimes it reads normal its really weird