Stimmel1647545512 Posted May 4, 2009 Report Share Posted May 4, 2009 long question short, for you tuners out there I have an 88 foxbody mustang (non mass air car) that I'm going to be doing heads on soon and some other mods. I plan on doing proper headgaskets and studs while I'm in there, (I plan on boosting it this winter, my question is should I convert it to mass air first or leave it SD? I have read that speed density is very tunable for boosted applications. Discuss Quote Link to comment Share on other sites More sharing options...
GSXRAntwon Posted May 4, 2009 Report Share Posted May 4, 2009 long question short, for you tuners out there I have an 88 foxbody mustang (non mass air car) that I'm going to be doing heads on soon and some other mods. I plan on doing proper headgaskets and studs while I'm in there, (I plan on boosting it this winter, my question is should I convert it to mass air first or leave it SD? I have read that speed density is very tunable for boosted applications. Discuss Ive seen SD LSx boosted cars all day on LS1tech....its deff possible and looks to be the choice of the "big boy" builds. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 4, 2009 Report Share Posted May 4, 2009 swicht it to mass air all you need is the computer and the sensor then move a couple of pins in the harness and add a couple new ones that run to the meter Quote Link to comment Share on other sites More sharing options...
Stimmel1647545512 Posted May 4, 2009 Author Report Share Posted May 4, 2009 swicht it to mass air all you need is the computer and the sensor then move a couple of pins in the harness and add a couple new ones that run to the meter I know I know I can do it but If im going to boost It I want to know whats easier/better to tune. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 4, 2009 Report Share Posted May 4, 2009 on a 5.0 mass air is the way to go on an efi application Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted May 4, 2009 Report Share Posted May 4, 2009 Call Dyno Brian and talk to him about it. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 4, 2009 Report Share Posted May 4, 2009 on a 5.0 mass air is the way to go on an efi application wrong... with tuning as far as maf vs sd. i'll stay sd. that way you can tune it off the 3 bar map sensor instead of relying on a damn hot wire maf which is known to fail. Quote Link to comment Share on other sites More sharing options...
evilstang Posted May 4, 2009 Report Share Posted May 4, 2009 agreed with gearhead. its a better tune but you have to more often when the temp changes more like a carburated car Quote Link to comment Share on other sites More sharing options...
rl Posted May 4, 2009 Report Share Posted May 4, 2009 What? Have any of you actually tried to tune a SD Ford thats heavily modified? Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted May 4, 2009 Report Share Posted May 4, 2009 wrong... with tuning as far as maf vs sd. i'll stay sd. that way you can tune it off the 3 bar map sensor instead of relying on a damn hot wire maf which is known to fail. I've been around the industry for a decent time in both OEM and aftermarket and haven't seen/heard of a MAF hotwire failing if the PCV system is designed properly. Its somewhat common for plastic housings to leak/fail when in blow through, but switching over to draw through elimnates that problem. Stick to what your ECU was made for, the more conversion/scaling that happens, the harder it will be to have an OEM-like tune on the car. agreed with gearhead. its a better tune but you have to more often when the temp changes more like a carburated car Not if you understand the concept, PV=nRT. Notice the "T" value, temperature. If you are having problems with drift, your temperature sensor needs to be relocated/redesigned. Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted May 4, 2009 Report Share Posted May 4, 2009 Both RL and myself are going to tell you to convert to mass air. It is really easy to do. Plenty of write ups about it online. Just gotta move some pins around. There are also some addtional connections needed that go to both the vss and fuel pump. There is no reason not to run a maf on a ford. Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted May 4, 2009 Report Share Posted May 4, 2009 long question short, for you tuners out there I have an 88 foxbody mustang (non mass air car) that I'm going to be doing heads on soon and some other mods. I plan on doing proper headgaskets and studs while I'm in there, (I plan on boosting it this winter, my question is should I convert it to mass air first or leave it SD? I have read that speed density is very tunable for boosted applications. Discuss Stimmel, Why dont you come out to the shop next time I have a ford or ls1 car on the dyno with forced induction. I will let you give me a hand in the tuning process and show you how the maf works. Unless you plan on making over 1500 hp the maf will work. You can make over 1000 rwhp using a maf both on ford and gm pcm's. Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted May 4, 2009 Report Share Posted May 4, 2009 Call Dyno Brian and talk to him about it. Survey says......... DING DING DING ... WE HAVE A WINNER. Quote Link to comment Share on other sites More sharing options...
BradyPPC Posted May 4, 2009 Report Share Posted May 4, 2009 Definitely go mass air. The only way to go on a Ford. Quote Link to comment Share on other sites More sharing options...
Stimmel1647545512 Posted May 5, 2009 Author Report Share Posted May 5, 2009 Stimmel, Why dont you come out to the shop next time I have a ford or ls1 car on the dyno with forced induction. I will let you give me a hand in the tuning process and show you how the maf works. Unless you plan on making over 1500 hp the maf will work. You can make over 1000 rwhp using a maf both on ford and gm pcm's. Brian, Thank you for being such a stand up guy, I would love that. I know the mass air conversion is easy I just wanted some professional opinions. I will be shooting for about half prob less than the 1000rwhp mark. Ill be in touch Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted May 5, 2009 Report Share Posted May 5, 2009 Brian, Thank you for being such a stand up guy, I would love that. I know the mass air conversion is easy I just wanted some professional opinions. I will be shooting for about half prob less than the 1000rwhp mark. Ill be in touch I will be looking forward to it. Like I said I will be glad to show you how maf tuning works. Will let you do some tuning if you like. Talk soon. Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted May 5, 2009 Report Share Posted May 5, 2009 Definitely go mass air. The only way to go on a Ford. Great tuners think alike. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 5, 2009 Report Share Posted May 5, 2009 wrong... with tuning as far as maf vs sd. i'll stay sd. that way you can tune it off the 3 bar map sensor instead of relying on a damn hot wire maf which is known to fail. I was about to argue with you but I think all the posts after mine made the point Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 5, 2009 Report Share Posted May 5, 2009 I was about to argue with you but I think all the posts after mine made the point there really is no point i have always run boosted cars either way. granted back in the day, mafs were not what they are now. i have been planning my next boosted build.. and a maf wont handle it ,but then i more then likely wont even have injection. when the carb set-up is still cheaper, and easier IMO Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted May 5, 2009 Report Share Posted May 5, 2009 there really is no point i have always run boosted cars either way. granted back in the day, mafs were not what they are now. i have been planning my next boosted build.. and a maf wont handle it ,but then i more then likely wont even have injection. when the carb set-up is still cheaper, and easier IMO Run two, average the signal. We did this on Mallet's CTSV prototype (1000whp) Quote Link to comment Share on other sites More sharing options...
BradyPPC Posted May 6, 2009 Report Share Posted May 6, 2009 there really is no point i have always run boosted cars either way. granted back in the day, mafs were not what they are now. i have been planning my next boosted build.. and a maf wont handle it ,but then i more then likely wont even have injection. when the carb set-up is still cheaper, and easier IMO Give me a call on your next build. I think you might be surprised as to what a maf can handle. There are definitely some benefits to running one even in boosted apps. The key is setting it properly as well as starting with a good maf. Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted May 6, 2009 Report Share Posted May 6, 2009 Stimmel, Why dont you come out to the shop next time I have a ford or ls1 car on the dyno with forced induction. I will let you give me a hand in the tuning process and show you how the maf works. Unless you plan on making over 1500 hp the maf will work. You can make over 1000 rwhp using a maf both on ford and gm pcm's. I will bet you $100 and dinner you can't Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 6, 2009 Report Share Posted May 6, 2009 Give me a call on your next build. I think you might be surprised as to what a maf can handle. There are definitely some benefits to running one even in boosted apps. The key is setting it properly as well as starting with a good maf. i might take you up on that.. but like i said, im more them likely be boosting thru a 1050 dommy Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted May 6, 2009 Report Share Posted May 6, 2009 I will bet you $100 and dinner you can't Diablosport Mafia's for Fords Maf Translators for GM All you need to do is scale down other tables in the pcm to get it to work correctly. I made close to 900 rwhp through a Turbo 400 using a LT1 maf and a mini afc (does the the same thing as a translator) on a 3800 firebird running twin 35r's and 30+ plus pounds of boost. This was done while keeping the maf under 11,500 hz. I also used the translator on a 06 GTO with a D1SC making 700 rwhp. Maf is below 11,000 hz which will give me some room to tune once we increase the boost some more. Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted May 6, 2009 Report Share Posted May 6, 2009 Unless you have a '98 LS1 PCM BTW, you, I, Wagner, and your dad are doing dinner next week. Quote Link to comment Share on other sites More sharing options...
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