Fuel-It CPI

135iTX

Corporal
Dec 1, 2017
115
70
0
Ride
2009 135i
Anyone run this yet? Its been out for a while but I don't think I've seen anyone actually using it. Seems like a decent option for those looking for 600ish HP without going port injection or an HPFP overdrive kit.
 

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Terry@BMS

Sergeant
Platinum Vendor
Jan 23, 2017
462
379
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We sell quite a few of them, works really well for those who don't want to or can't go port injection.
 

135iTX

Corporal
Dec 1, 2017
115
70
0
Ride
2009 135i
Just been pricing my options lately as my car is ready for some new turbos, and I really don't want to go PI as I'm only looking for 550 - 600whp.

CPI 950CC with controller comes out to $700
HPFP Overdrive kit $800 - 850

On the fence which way to go, I am not a huge fan of overdriving a HPFP, but on the other hand CPI 'might' not have the best cylinder distribution. Just looking for some real world examples and feedback on anyone running CPI but have only come across one user over on n54Tech.
 
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Terry@BMS

Sergeant
Platinum Vendor
Jan 23, 2017
462
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The HPFP is a "cleaner" sort of setup but the CPI has some additonal benefits, you get an IAT reduction through the evaporative process similar to WMI. For those running JB4 it can run the CPI but for those not running JB4 we have a lower cost CPI controller coming out soon!
 

Jewgo

Specialist
Nov 6, 2018
65
28
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1r
Isn't this similar to the old fuel-it TBI which was taking off the market due to it not distributing fuel evenly throughout the cylinders? If it is not, what makes this different and/or better?
 

Terry@BMS

Sergeant
Platinum Vendor
Jan 23, 2017
462
379
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This uses a traditional port injection fuel injector for precise metering until the older systems that used a simple solenoid and a meth nozzle.
 
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Torgus

Brigadier General
Nov 6, 2016
2,671
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Boston
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ACF 6466 E92 + METH
Isn't this similar to the old fuel-it TBI which was taking off the market due to it not distributing fuel evenly throughout the cylinders? If it is not, what makes this different and/or better?

https://www.*/charge-pipe-injection-cpi-starter-kit/

Still on their website I don't think it was ever taken off?
 

Panzerfaust

Lieutenant
Jul 3, 2018
637
438
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Chicago
Ride
E92 335i
I know that some big name tuners on FB have publicly commented when the same question has been brought up that they wouldn't tune someone running this set up due to the aforementioned cylinder distribution issues. I think if going this route you'd have to stick with a JB4 unfortunately.

I could see this setup being useful on a drag car running pure alcohol or methanol if it was tuned without it first and this was dialed in just to drastically reduce IATs and maybe for a bit of extra knock suppression, but for secondary fueling I personally think it's kind of a weaker option and limits tuning capabilities.