does anyone make a highflow mass air sensor for 85 -89 tpi cars???

 

never seen an upgrade, only modified ones

 

This?

 

granatelli motor sports has a adjustable mas airflow for all camaros and thirdgens also

 

antoine have a link so's i can checkem out?????????

 

I wouldn't. I had a unit similar to that. In the 89 Merkur XR4Ti, they had Vane Air Meter setups. We had a Mass Air setup that would splice into the VAM setup and fool it into thinking the VAM was still there and it was adjustable. Better than VAM especially for the turbo spool up.

Why do you need to adjust it? If you change a major component, you would want to change the EPROM anyways. If you change a minor component, the ECM will adjust. Forget the damned thing because it is not worth it. All it is is a rheostat that will adjust the input to the ECM from the MAF.

 

The TPI computers are only designed to handle a max flow rate or cfm through the maf. Which is one major weakness. Lt1 computers are far superior and allow for alot of possibilites. We weren't so lucky. If you want more flow,swap to Speed Density, cost you next to nothing and if you have someone who can burn you a chip for your application, you are golden!!!

Will

 

MAF has a larger window for adaptation to modifications tho. Just get a ported unit or whatever and have the ERPOM burnt to match it.

 

the only thing is that once the maf sensor is ported, it changes the calibrated flow, which changes the a/f ratio. TPIS testing showed engines going lean in the upper rpm ranges and going slower with a ported MAF. If you can find a tuner to reprogam your prom correctly on a dyno then you're good to go. My programmer got into a lot of computer talk with me that i didn't really understand. Basically he said it was difficult to impossible to reprogram for those changes.

There's a corvette guy, ski_down it, who put down about 450 horse to the wheels with a 406 and solid roller through the unported maf sensor. He'll tell you it's not necessary to port it.

 

, and more. It might be for him but not to the people I know of.

 

I did my own this way ,it flows over 750 cfm and was easy to do. You just have to go slow and keep it clean while doing so. It took awhile ,but the savings was worth it to me.

 

How much savings anyway? This is a new unit but if you port your old one, you might not be considering the part cost. What I am asking is how much would a new MAF cost?

 

i have a new reman gm maf in garage that cam w/the car so thats not a prob. if i port my own & f it up , but my main concern is it restrictive size and loosing HP because of it? if i switched to speed density dont i have to get 90 & up harness & computer?

 

All you need to do is buy the correct sensors for sd rather than maf, and a sd computer,along with some other misc parts.Its not thats bad. Can be done in an afternoon/

Will

 

The unit you linked to was $398,you should be able to pick-up MAF at pep o' boys for around $150. So I would say you saved $250 ,no? Like I said I did my stock MAF like they do (or similar),and it was flow tested at around 750+ cfm. Ok there are some people that can't follow directions , and people that can't work well with thier hands , this is a delicated item I was afraid to do it also ,but like I said I went slow and steady and followed the directions given me and it turned out ok. As for flow rate unless your all ported out and are running a 58mm TB and maybe some pressure (blower) 750cfm should be more than adequate.