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Old 03-13-2014, 10:50 AM   #3907
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IIRC Sprintex shipped a new MAP sensor with the stage two kit. It also had AIT built in. They had so many problems with it that they stopped shipping the map sensor and told all their customers to switch back to the OEM map sensor. I was going to switch my map sensor as well but after hearing all that I stayed away. I talked briefly to Bill and he said I was better off staying OEM.

Sorry to hear about all your problems. It's super easy to make the switch so why not give it a try to rule it out.
True its easy to swap it, but I will need an updated map for the sensor.
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Old 03-13-2014, 10:54 AM   #3908
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True its easy to swap it, but I will need an updated map for the sensor.
Your tuner should be able to scale it back pretty quick. Unless he is using the MAP as an input past 5 psi. I would still ask.
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Old 03-13-2014, 10:55 AM   #3909
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Your tuner should be able to scale it back pretty quick. Unless he is using the MAP as an input past 5 psi. I would still ask.
Unfortunately my tuner is at texas2k and won't be around for the next couple days lol. Thats why I was making a deal about the map swap
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Old 03-13-2014, 12:33 PM   #3910
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Unfortunately my tuner is at texas2k and won't be around for the next couple days lol. Thats why I was making a deal about the map swap
Maybe remove the laminova core and isolate the problem? Run it on the dyno Non intercooled?
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Old 03-13-2014, 12:36 PM   #3911
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Maybe remove the laminova core and isolate the problem? Run it on the dyno Non intercooled?
I don't want to remove it, if its not needed. I rather keep it. Thats a last option.

But at that point I might be a little pissed and who knows what I end up doing
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Old 03-13-2014, 12:47 PM   #3912
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So what is going on here, the intercooler is allowing you to push the blower to its limits and at the limits the blower is kinda...blah?
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Old 03-13-2014, 01:15 PM   #3913
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So bear in mind we said "at this time".

Just swapped MAP sensors to stock. No more misfires

We'll verify on the dyno but I'm 99% sure that's the issue.
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Old 03-13-2014, 01:16 PM   #3914
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Originally Posted by moto-mike View Post
So bear in mind we said "at this time".

Just swapped MAP sensors to stock. No more misfires

We'll verify on the dyno but I'm 99% sure that's the issue.
Meaning the sensor was bad, or you can't run a 3/4 omni with the IC?

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Old 03-13-2014, 01:34 PM   #3915
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Meaning the sensor was bad, or you can't run a 3/4 omni with the IC?

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IC and 3/4 bar map sensors are not compatible. Every other FI setup they are fine.
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Old 03-13-2014, 02:10 PM   #3916
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Originally Posted by xxscaxx View Post
This would be bizarre. But I have found that the Omni o-ring is too large for the MAP sensor plate. Even lubing it up, its extremely hard to get it in there without ripping the o-ring.
Yep, special care needed on that one!


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Old 03-13-2014, 02:19 PM   #3917
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IC and 3/4 bar map sensors are not compatible. Every other FI setup they are fine.
what is the reason?
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Old 03-13-2014, 02:52 PM   #3918
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What Map Sensor are you using?
He also tried everyting tuning wise, cam sweeps, fueling, timing etc etc nothing made it any better until he went back to the stock map sensor. I don't understand it, but I trust what he was telling me. Seems crazy but there could be a reference to the map sensor that is not exposed in some of the tuning platforms is all i can figure.
We had 5 different tuners/their customers we've been in touch with recently who were all having the same issue and tried the same things. I looked back and the only customers we had that didn't have the issues had stock map sensors. Since the CARB tune used a stock MAP sensor, that is why they were not having the issue.

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what is the reason?
It is for a few reasons, some of which I don't have the time to get into. But basically because of how the SC flows, the cam phasing is critical, and unlike turbos and the centrifugals; it creates a different flow pattern right at the runner and is the reason for the wobbly MAP signal.

In double checking and making a few phone calls we know that not the omni, the OEM honda, nor the denso IAT based map sensors will work. I think any >1.3 bar sensor will have the same issue when intercooled.
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Old 03-13-2014, 02:59 PM   #3919
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Originally Posted by moto-mike View Post
We had 5 different tuners/their customers we've been in touch with recently who were all having the same issue and tried the same things. I looked back and the only customers we had that didn't have the issues had stock map sensors. Since the CARB tune used a stock MAP sensor, that is why they were not having the issue.



It is for a few reasons, some of which I don't have the time to get into. But basically because of how the SC flows, the cam phasing is critical, and unlike turbos and the centrifugals; it creates a different flow pattern right at the runner and is the reason for the wobbly MAP signal.

In double checking and making a few phone calls we know that not the omni, the OEM honda, nor the denso IAT based map sensors will work. I think any >1.3 bar sensor will have the same issue when intercooled.
Thanks for the reply. I wasn't looking for an elaborate explanation so that worked just fine

Are you still seeing power loss? Or has all been basically resolved now?
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Old 03-13-2014, 02:59 PM   #3920
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Thanks for the reply. I wasn't looking for an elaborate explanation so that worked just fine

Are you still seeing power loss? Or has all been basically resolved now?
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