Another turbo P5 thread...
- Thread starter khaosman
- Start date
GMalatrasi
Member
- :
- 2003 Mazda Proteg5, soon to be Turbo
Nice... What psi was that at?
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- 92 & 16 Meyatas
123hp @ 8.8psi (uhm)
I made about 3 or 4 runs; a little change in the tuning each time. The car has fell flat around 6k since I went turbo, now I have dyno evidence to prove my theory. It WAS hitting max duty at 6k+ and cutting out, but I'm not sure if it was after I made some changes. I can just go out on the street and do a run real quick with the laptop logging and check.
The Microtech logs timing but I didn't take a look at that yet. As far as fuel goes, we couldn't figure out how to easily hook up their system to monitor the pressure. That would have been nice to figure out what was going on with the max duty... I don't think the injectors are too small (440s), but perhaps the stock fuel pump can't keep up.
I'll post the sheets with AFR, power/torque, and boost pressure in a little bit. I have to type them in or something. Maybe there is a program that can convert the jpg to xml, that'd be nice
This was pretty much a baseline and got my boost section cleaned up a little bit. Now I have an idea of what areas need lots of fuel taken out and which don't. Eventually I'll take a road trip to a shop that can better tune it (and maybe mess with timing).
Here a couple pics my friend snapped of my car yesterday at a Honduh meet
The Microtech logs timing but I didn't take a look at that yet. As far as fuel goes, we couldn't figure out how to easily hook up their system to monitor the pressure. That would have been nice to figure out what was going on with the max duty... I don't think the injectors are too small (440s), but perhaps the stock fuel pump can't keep up.
I'll post the sheets with AFR, power/torque, and boost pressure in a little bit. I have to type them in or something. Maybe there is a program that can convert the jpg to xml, that'd be nice
This was pretty much a baseline and got my boost section cleaned up a little bit. Now I have an idea of what areas need lots of fuel taken out and which don't. Eventually I'll take a road trip to a shop that can better tune it (and maybe mess with timing).
Here a couple pics my friend snapped of my car yesterday at a Honduh meet
wow that's a painful torque fall off.... usually can even that out with some timing advance as you pull through redline, but don't know what the operator was or wasn't doing and I didn't see an AFR log tied on there... but overally looks good... what psi were you at?
stock fuel pump could explain it... I know we were able to push 250-260 whp at 15-16 psi on stock fuel injectors with a walbro in-tank pump and stock FPR.
stock fuel pump could explain it... I know we were able to push 250-260 whp at 15-16 psi on stock fuel injectors with a walbro in-tank pump and stock FPR.
Unfortunately that was me tuning. We did about 4 pulls and in between each I'd mess with the maps. I have the ATP wastegate which should do about 8psi, but I did turn my boost controller up a decent amount. For whatever reason, the boost also tapers off in the top end. I may have to try a new in-tank fuel pump.
Steve, you don't have a dyno at your shop do you? Maybe I could make a road trip to Wisconsin
Steve, you don't have a dyno at your shop do you? Maybe I could make a road trip to Wisconsin
Oh nice! We may have to plan some sort of tuning meet some time in the near future. I have a bunch of friends in Iowa City so I could go visit them and crash there, then meet up with you. Plus I have some vacation time I need to use.
What Walbro pump do you recommend? I didn't find one on your site.
I'm definitely going to do some more street tuning now that I have an idea of where my AFRs are at. My AEM WB doesn't read below 11:1. It must be an older model or something because I know people that say theirs will read much lower.
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- MSP 1145
i think it's the miata pump.
People have told me that my car is quieter, and perhaps it is when I'm just casually driving by. These people don't daily it. Drones... back-fires... all sorts of good stuff. Perhaps with a 2.5" exhaust it'd be better.
I also had a co-worker tell me he could hear my blow-off valve from his apartment as I was getting on the interstate
So I'm not really sure--it was about 3 months in between the car running NA and turbo. Here's a couple videos which kind of make me think that it is slightly quieter with turbo:
http://www.youtube.com/watch?v=uRujOLMc8Nk
turbo (no exhaust)
http://www.youtube.com/watch?v=k38A8hx9FUQ
I also had a co-worker tell me he could hear my blow-off valve from his apartment as I was getting on the interstate
So I'm not really sure--it was about 3 months in between the car running NA and turbo. Here's a couple videos which kind of make me think that it is slightly quieter with turbo:
http://www.youtube.com/watch?v=uRujOLMc8Nk
turbo (no exhaust)
http://www.youtube.com/watch?v=k38A8hx9FUQ
I hate you for finding the insturment bezel for your gauges. I have one of ForceFed's radio bezels. It's going to be tight and clean but I'm going to have 3 gauges so I'm going to have to get a pillar pod too......which I didn't want to do. Oh well, I'll stop junking up your thread.
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