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1G EPROM with TMO chip and 2g mas w/ 550cc

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Slippi84

20+ Year Contributor
4,454
20
Jun 8, 2005
Cinnaminson, New Jersey
:dsm: :confused: Before I start I know it says I have 550cc in my profile which is true but before installing i realised that even though I had the correct AFPR and a good fuel pump in the walbro 255(IT will not be overkill because i do not plan on rewiring unless necessary and i will probably end up being a 14b 11 sec warrior) I would run way to rich and my car would run poor funny how that works. Anyway I have not yet owned a SAFC but even if I did when I hear ppl talking about tunning i know what the terms such as egt 02 voltage knock and so on mean but have no idea how to convert my knowledge of them to effective tuning. So i figured I would go with a chip such as TMO stage three which will eliminate fuel cut, boost cut, and the most important for this thread INJECTOR COMPENSATION. I was previously thinking about going with a 2g mas for the ball park 20% leaning effect with better air flow in conjuction with the 550cc injectors which is about a 20% fuel increase. Now of course they would cancel each other out but if i have a eprom slotted and compensated for 550cc injectors than won't that bring the car back to stock spec technically and thus leaving me with only a 2g mas which will again leave me 20% lean. If I am missing something which 9 out 10 I am please inform me. Thanks a lot.
 
1) If you have a 255lph fuel pump, get an AFPR. Just do it.

2) You're not gonna be able to tune this car for crap without an AFC or a DSMLink.

3) Where are you getting a TMO Stage III chip? TMO doesn't do these anymore.

4) The EPROM code can be modified with compensation for the 2G MAS. With this code you won't run 20% lean.
 
The TMO stage 3's are on ebay every now and again. They got everything from fuel cut block boost cut block shutterbox for dragging and a couple other cool stuff i mainly want it for fuel cut block and injector compensation.
 
Slippi84 said:
The TMO stage 3's are on ebay every now and again. They got everything from fuel cut block boost cut block shutterbox for dragging and a couple other cool stuff i mainly want it for fuel cut block and injector compensation.

That isnt a tmo, its a knock off. Just go to dsmchips.com and get Jeff O. to burn you a chip with whatever corrections you want. Regardless, you should invest in an afc for fine tuning. Even Jeff will tell you he can get very close but not perfect for each individual car.
 
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