ProteusGreg said:

Thanks for the insight. I am considering the Watson, CMS and any others I can get a recommendation for.

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No problem. I haven't done any of the others but without my bolt issue this was pretty easy with my wife helping.

can you share the installation instructions? Curious how the rear bars get mounted? It looks like the wheel well or fender area next to the rear seat

ProteusGreg said:

can you share the installation instructions? Curious how the rear bars get mounted? It looks like the wheel well or fender area next to the rear seat

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I'll send you a conversation message

A couple of other small updates: replaced the worn rubber toe link bushings on the rear with solid ones and threw on BMR toe links themselves. And right on cue on a rainy day (not too often here) yesterday I got the holes cut and the center hood and fender vents installed

Installed the KPM 800hp fuel pump. Just did a simple drop in and go. The car acts and feels the same, AFR's are all the same. STFT's are pretty far negative as I think it's supplying more fuel than its expecting, but KPM told me over several drive cycles it should learn and adjust.

jklapko10 said:

Installed the KPM 800hp fuel pump. Just did a simple drop in and go. The car acts and feels the same, AFR's are all the same. STFT's are pretty far negative as I think it's supplying more fuel than its expecting, but KPM told me over several drive cycles it should learn and adjust.

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Was this because you were having fuel cutouts in left turns?

Midtownz06 said:

Was this because you were having fuel cutouts in left turns?

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Yup. Haven’t been on track with it yet to report if it works or not but that was the main driver

Can report back now after 2 weekends of using the KPM pump at Chuckwalla and COTA, I have ran the car down to 1/8th of a tank and have not gotten any fuel starve

So it works as advertised.

What is STFT? (post # 25)

Bill Pemberton said:

Tons of cool mods but have you not considered going to an 18x11 Apex wheel so you can get more meat to the ground?

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jklapko10 said:

My 18x10's are relatively new, honestly with the ducting and how it sits its very close to rubbing. I will probably revisit in the future but as of right now no.

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Tires - Bridgestone Potenza RZ? Size?

Junkyard Dog said:

So it works as advertised.

What is STFT? (post # 25)

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Short term fuel trim- basically the constant adjustment the ECU makes from reading the O2 sensors for lean/rich. A negative STFT means the ECU is "pulling fuel" due to oversupply (In my case because of a stronger new pump) and a rich condition, a positive STFT means its undersupplied and calling for more fuel. Over time and through drive cycles the corrections adjust the LTFT, which will bring the trims closer to 0 (essentially learning itself over time). This reminds me to check how its doing after a few weekends, from the drivers seat it has ran great.

Junkyard Dog said:

Tires - Bridgestone Potenza RZ? Size?

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I ran the Bridgestone RS 295/35/18 and they were great. I have since gone up to the Toyo R 305/35/18 and I like them even more.

My time attack rules changed over the winter and I could now run a 40tw and stay in my same class

jklapko10 said:

Short term fuel trim- basically the constant adjustment the ECU makes from reading the O2 sensors for lean/rich. A negative STFT means the ECU is "pulling fuel" due to oversupply (In my case because of a stronger new pump) and a rich condition, a positive STFT means its undersupplied and calling for more fuel. Over time and through drive cycles the corrections adjust the LTFT, which will bring the trims closer to 0 (essentially learning itself over time). This reminds me to check how its doing after a few weekends, from the drivers seat it has ran great.

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Ok, so one ignorant question answered brings up another - does installing a KPM fuel pump require tuning? Or does the ECU correct all of this on its own?

Junkyard Dog said:

Ok, so one ignorant question answered brings up another - does installing a KPM fuel pump require tuning? Or does the ECU correct all of this on its own?

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The simple answer is no, but I'm pretty sure that's assuming factory tune. Their install video mentions several times that no tuning is required.

I also was weary of this and kept the stock fuel pump on the side because it wasn't worth it to me to get the car retuned for just a fuel pump.I called them and because I have an aftermarket tune and their answer was that it shouldn't need a recalibration, but data log the STFT with the fuel pump %, RPM, and throttle position on a short drive to make sure. I'm not sure if the newer models (with direct injection) are different or more dynamic with their fuel pump %, but mine at least during the whole data log runs would slowly move between 2 numbers (29% and 48%) back and forth, no inbetween, depending on demand. As if the only behavoir the ECU called on the pump was low or hi, and controled the specific amount of fuel at the rail with injector pulse.

jklapko10 said:

Installed the KPM 800hp fuel pump

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Did you install their filter kit or your own version?

John S. said:

Did you install their filter kit or your own version?

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It comes with the OEM sock style filter built into it. So that part is the same level of filtering as it comes stock. I didn't add an in line filter