s2kvince

When switching from the Comptech factory kit to one with AEM engine management, is it recommended to remove the Comptech FPR and go back to the factory regulator? Or, is it fine to leave the Comptech FPR?

s2000Junky

If you are upping the boost much past the base/5-6psi level you need a new clutch to hold the power anyway. Stock clutch wont hold more then about 340whp/210trq if in excellent shape.

You can use the stock friction disc if it looks to be in good shape and act pp as its a proven combo for more power then you will ever see with this set up. Inspect the throw out and pilot bearing. At only 48k miles id be willing to inspect first and save the money if you dont need.

With a good shape oem friction disc, pilot and throw out bearing you could save about $270.

s2000Junky

Yes you should remove it. It will create a lot of tuning inconsistencies and is just not needed any longer at this point. Put the oem fpr back in.

s2kvince

Thanks, appreciate your responses here and in historical threads. Having issues now with long cranking times when the car is hot, so the FPR on the Comptech may be causing issues already.

s2kvince

No issues with starting today. I've also been letting the fuel pump prime for the full 2 seconds before hitting start, so it could be that. Was also having issues yesterday with some power variations at higher RPM that may have been belt slip or fuel issues, but it seems to be running strong today.

I went searching for the ESM and realized I had a spacer under the map sensor that T's off into a few other locations (intake manifold) and also goes straight to atmosphere. From what I've read, this is the original method prior to the ESM.

Are there any known symptoms of using this spacer for MAP sensor signal modification?

s2000Junky

Once you move to the AEM ems you arent going to need that map spacer anymore. But yes sounds like you have one of the very first iterations, which I have no direct experience with as I used the esm back in the day, but based on how they designed this one, it doesnt sound like a consistent working option with vac line coming off it. I actually use one of these now days since im still running the base system and didnt want to hack into my engine harness with the esm (if one could even be found these days). If you are going to run the kit as is with current stage one equip, I would swap this one in im using and re route your vac lines off of the current to run dedicated to the rrfpr off manifold. https://www.ebay.com/itm/BLOX-MAP-BY...item3628c3294a

s2000Junky

What is the afr at wot and idle? Are you running a wideband to check this? Do you even know if the car is running a safe tune at all? There is a fuel adjustment on the comptech rrfpr, but you cant tune it blind.

s2kvince

No, I don't have a wideband. I have one on the way with the AEM Infinity 506, but that's all part of the new system. I think I'll just take it easy on the car for now and stop troubleshooting the Comptech factory system until all of the new parts are on and it's tuned.

s2000Junky

That's a smart plan.