12a Turbo base map
10-19-23, 11:32 PM
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12a Turbo base map
So I've tried a lot of the base maps I'd seen on here but none of them seem to be doing the trick for my 85 rx7. I know it's a bit of an unconventional mix but I'm hoping I could get some guidance on what a base map should look like for a turbocharged 12a.
Currently the modification done to it are as follows
Microtech Lt-10c (the load and idle values go 30"-24"-18"-12"-<6"-0" so copying most other maps doesnt seem right but ive worked around it)
pineapple racing race port
Weber style efi intake and manifold
4x875cc injectors (not sure if I need a split sizing or not)
43psi fuel pump
LS2 coils
FPzero turbo (supposed to be a factory replacement turbo on an EVO 8, it might not be the ideal turbo but it's what I got) It has a trial wastegate built into it, and i have a precision blow off valve
It might be worth noting the exhaust that is currently on it points strait out of the engine bay but I don't know if this should have an effect on startup (this is because I have the full exhaust system that went with the evo 8 and the turbo and I've yet to be able to take it to an exhaust shop... ofcourse I'd rather drive it to the shop than tow it so I planned to keep it this way until that is possible).
The biggest drawback aside from the noise with this for me is that I dont currently have the o2 sensor welded in for me to accurately see my afrs.
Not sure if there's anything else that would affect the tune if there's anything else that might help I'll be more than glad to mention it.
I've only been able to start the car by squirting some 2 stroke oil in the intake however I have all new seals and I replaced both housings with brand new ones and I've been told I shouldn't need to do that. It's clear the tune is WAAAAYYYY too rich as not just before I was able to get it to start but especially moreso when it did start it was legitimately spraying 2 stroke fuel out of the exhaust and I've got a nice section of my garage soaked to prove it! Lol
When I did get it to start, it did idle relatively high at around 1400-1600rpm and the vacuum moves between 12-14"I've never owned a ported motor before and I've only heard of bridgeported motors idling as high as 2k but i do know that pineapples race port does have a considerable amount of overlap so I'm not sure if mine is supposed to idle that high or if that should be lower.
At 14" of vacuum my bov recommends using the small spacer but if the idle needs to be lower idk if that will change what size I need to run or if that will have an affect on start up.
I'll upload my map tomorrow after work so hopefully yall can see if there's anything blatantly wrong with it. But in the mean time if you have a full up map that you think might work as a good starting point for me I would very much appreciate it.
Currently the modification done to it are as follows
Microtech Lt-10c (the load and idle values go 30"-24"-18"-12"-<6"-0" so copying most other maps doesnt seem right but ive worked around it)
pineapple racing race port
Weber style efi intake and manifold
4x875cc injectors (not sure if I need a split sizing or not)
43psi fuel pump
LS2 coils
FPzero turbo (supposed to be a factory replacement turbo on an EVO 8, it might not be the ideal turbo but it's what I got) It has a trial wastegate built into it, and i have a precision blow off valve
It might be worth noting the exhaust that is currently on it points strait out of the engine bay but I don't know if this should have an effect on startup (this is because I have the full exhaust system that went with the evo 8 and the turbo and I've yet to be able to take it to an exhaust shop... ofcourse I'd rather drive it to the shop than tow it so I planned to keep it this way until that is possible).
The biggest drawback aside from the noise with this for me is that I dont currently have the o2 sensor welded in for me to accurately see my afrs.
Not sure if there's anything else that would affect the tune if there's anything else that might help I'll be more than glad to mention it.
I've only been able to start the car by squirting some 2 stroke oil in the intake however I have all new seals and I replaced both housings with brand new ones and I've been told I shouldn't need to do that. It's clear the tune is WAAAAYYYY too rich as not just before I was able to get it to start but especially moreso when it did start it was legitimately spraying 2 stroke fuel out of the exhaust and I've got a nice section of my garage soaked to prove it! Lol
When I did get it to start, it did idle relatively high at around 1400-1600rpm and the vacuum moves between 12-14"I've never owned a ported motor before and I've only heard of bridgeported motors idling as high as 2k but i do know that pineapples race port does have a considerable amount of overlap so I'm not sure if mine is supposed to idle that high or if that should be lower.
At 14" of vacuum my bov recommends using the small spacer but if the idle needs to be lower idk if that will change what size I need to run or if that will have an affect on start up.
I'll upload my map tomorrow after work so hopefully yall can see if there's anything blatantly wrong with it. But in the mean time if you have a full up map that you think might work as a good starting point for me I would very much appreciate it.
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