2g Maf 1g car w/ 650's

[turbo2086]

I do not have an eprom. I know that 650's with just an SAFC makes it difficult to tune. Because you subtract so much fuel, and the ECU goes to the map for that amount of airflow, and your timing becomes way off from where you want it to be.

So I read that for the 1g guys upgrading to the 2g maf makes it pretty much a bolt on for 550's. I think -24 for 550s +22 for 2g maf. Something like that. So I was thinking... Going with 650's on a 2g maf would be like tuning for 550's on 1g maf. It would be easier. Get what I'm saying? Am I thinking correct? Has anybody done this setup before? If so, good results?

[Kracka]

It'll work fine. Does your setup require larger than stock injectors though? You should give us details on your car so we can give you the best possible advice.

[niterydr]

I do not have an eprom. I know that 650's with just an SAFC makes it difficult to tune. Because you subtract so much fuel, and the ECU goes to the map for that amount of airflow, and your timing becomes way off from where you want it to be.

So I read that for the 1g guys upgrading to the 2g maf makes it pretty much a bolt on for 550's. I think -24 for 550s +22 for 2g maf. Something like that. So I was thinking... Going with 650's on a 2g maf would be like tuning for 550's on 1g maf. It would be easier. Get what I'm saying? Am I thinking correct? Has anybody done this setup before? If so, good results?

The 550's NEARLY balance out for a 2g mas swap. We have discussed this before on this forum...try digging around a bit.

The 650's work okay on a S-afc..I would recommend to just take it somewhere to get tuned. I charge $150 to setup S-afc's and tune them for high/low.

[Halon]

Too bad you don't have an EPROM. I have 2 chips sitting here that are for a 1g with a 2g MAS, and 660's.

[Goat Blower]

A 2G mas would make it much easier, plus it looks way better.

[turbo2086]

It'll work fine. Does your setup require larger than stock injectors though? You should give us details on your car so we can give you the best possible advice.

Okay well what's on the car now...

Free Mods
Datalogger
EGT, boost readouts
Ported Evo III Manifold
Ported 14b
Ported 2g o2 housing
3" Turbo back exhaust
Walbro 190
Dejontool UICP
Bpr7es plugs
Act 2600 w/ street disc
Boost controller.

Purchasing a FMIC kit and ARP head studs next week.
Then I would like to run the EVOIII turbo, but want to get my fuel stuff done first. So leads me to this thread.

[tim]

If you dont have the SAFC yet you could go for the EPROM instead. Have it tuned and a chip burned(or buy Brandons). Then if you ever do the DSMlink route you would be set.

[Jakey]

I do not have an eprom.

Get one.
http://www.dsmchips.com/

[sleepydsm]

or just get DSMLink.

[Shane55113]

or just get DSMLink.

:D