ls1_Bobo

Ok so I have a 1998 trans am 6speed car with a maf. I have a single turbo setup and a Ms4 cam with valve springs and push rods, new injectors but still need a fuel pump. I have been seeing people change to sd. My question is can I make good power off the Maf I'm looking for 600rwhp and also what lph pump would be good do I need to run two of them? Thanks for your guys help. I'm trying not to change wiring harness or computer but if I have to can I use a different computer and just repin the harness? Thanks guys!

JoeNova

Your tuner can swap to speed density. No wiring or computer swap. I don't know much about the 98 ecu because its a little different but it should work. If you do have to switch computer you will have to switch harness as well since the 98 is different.

For pump, you can run a single walbro 400 series in the stock bucket.

giantrules

iTrader: (1)

Lots of info on the site regarding the 98 ECU...you can repin and use the 0411 ECU (will need fuel segment swap for the fuel gauge to work) or you can use your 98 ECU with a HP Tuners 2 bar SD custom operating system...good to about 14 psi.

ls1_Bobo

Well what do you guys think about running the Maf and not changing anything and just tune it. Is the hp tuner a good investment?

SM105K

iTrader: (3)

I personally would get ahold of NicD and drag your car to Arizona and let him tune it.

JoeNova

Its very little work and a lot of benefit to disable the MAF. The hardest part is literally just removing it from the car.

ls1_Bobo

Ok thanks for the help guys

munn79ta

wouldnt you have to change the map sensor if you delete the maf?

JoeNova

This is sort of a requirement for forced induction anyway.

giantrules

iTrader: (1)

For folks like me...no tuning expertise...find a local tuner with FI LS experience and let them help you decide; this will support their ability to tune your car. I will stay out of the MAF vs SD debate but my great internet attained wisdom says SD lol.

munn79ta

just was throwing it out there.

ddnspider

iTrader: (26)

98 computer here, still running a maf. Ls7 maf in a 4" tube with an airflow straightener and the car drives great. I did have to scale the tune but it's working. I plan to run CLMAF exclusively.

ls1_Bobo

see this is more the answer i was looking for when i started this. so the ls7 maf is better did it plug right in?

JoeNova

Sounds to me like you just want to keep the MAF. I told you that getting rid of it is as easy as just disabling it with HPTuners or having your tuner do it for you.. Then someone else suggest spending money on a different MAF and that's the answer you were looking for.

ddnspider

iTrader: (26)

Spectre makes a 4" tube that is made for the LS7 MAF cartridge. Saxon makes a honeycomb screen that can be installed in the 4" tube and greatly increases the accuracy of the MAF reading, and there is a company on Ebay that makes an adapter harness to mate the LS7 MAF connector to the stock MAF harness plug....so yes it was plug and play. You do have to retune the MAF transfer function though.

Do you tune or just post stuff you've read online? Tuning a speed density car with a 2 or a 3 bar map sensor is not as simple as unplugging the MAF. It requires significant time, including a custom operating system so the car adjusts for changes in IAT's and weather changes. For a 98 PCM, if the person doesn't want to put a new PCM and repin or replace the harness, I think this MAF is a viable alternative if tuned correctly.

123quattro

It's personal preference. You can keep the MAF and make over 1000whp if you are so inclinded. It's been done.

ls1_Bobo

I can't seem to get a straight answer or I'm just not understanding I don't want to change my harness to run sd if I don't does the intake have a spot for it? And if I can run the Maf then why the Hell not

ls1_Bobo

And I'm not looking to spend money on a pcm and redoing the harness. I have a buddy that was telling me my **** is junk and won't make power and have to update everything. Maf is what I want to run and now that I got the answer I was looking for Maf is what I'm gonna run.