TBI vs PI

Ozzie335i · 03-12-2016, 09:35 AM

I am at a crossroads where the only way I can add more power is to either go with meth or e85. Choosing e85 and wanting 525 or perhaps 550 at the wheels I need to make a choice between the two e85 fueling options. Please give me the pros and cons of each. Sure PI can provide more ultimate power, but at a price. At what point does traction become an issue, thus increasing power further ends up pointless? And can this be done, meanwhile keeping the drivability of the car?

CantCatchMe · 03-12-2016, 09:11 PM

I'd go with the TBI personally. If you have future plans to run straight E85 then go with the PI.

Ozzie335i · 03-12-2016, 09:53 PM

Quote:

Originally Posted by CantCatchMe

I'd go with the TBI personally. If you have future plans to run straight E85 then go with the PI.

That is part of the quandary I am in. Five and a quarter very well may be enough. But I have read that the PI is "safer." Decisions decisions. If I can go with the Platinum Fuel-It TBI, and have a simple growth path from it if necessary, that my be the road I need to travel.

Anytyme · 03-13-2016, 08:27 AM

If youre only looking for 525-550 simply do tbi, Decision made

kevBquick · 03-17-2016, 11:07 PM

i like the even-ness of PI. plus just running straight e85. no more mixing. there is a real elegant solution coming out for PI. its dollars but damn! sexy doe.

03-12-2016, 09:35 AM	#1
Ozzie335i Lieutenant Colonel 661 Rep 1,526 Posts Drives: 2011 335i Join Date: Aug 2014 Location: DFW iTrader: (1)	TBI vs PI I am at a crossroads where the only way I can add more power is to either go with meth or e85. Choosing e85 and wanting 525 or perhaps 550 at the wheels I need to make a choice between the two e85 fueling options. Please give me the pros and cons of each. Sure PI can provide more ultimate power, but at a price. At what point does traction become an issue, thus increasing power further ends up pointless? And can this be done, meanwhile keeping the drivability of the car?
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03-12-2016, 09:11 PM	#2
CantCatchMe Lieutenant Colonel 339 Rep 1,744 Posts Drives: 2012 335i xdrive msport(E92) Join Date: Aug 2014 Location: West Bloomfield, MI iTrader: (2)	I'd go with the TBI personally. If you have future plans to run straight E85 then go with the PI.
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03-13-2016, 08:27 AM	#4
Anytyme Private First Class 75 Rep 150 Posts Drives: 2011 N55 335i Join Date: Aug 2015 Location: North Jersey iTrader: (2)	If youre only looking for 525-550 simply do tbi, Decision made __________________ N55 World Record 650whp 571tq 2011 N55 335I, VM Top Mount Kit, PTE 6266 Gen 2, JB4 AMS Fmic, ER CP with BOV, FuelIt Stg3 LPFP, , PI Platinum Kit.
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03-17-2016, 11:07 PM	#5
kevBquick Private First Class 40 Rep 156 Posts Drives: 2015 M3 Join Date: Dec 2013 Location: United States iTrader: (0)	i like the even-ness of PI. plus just running straight e85. no more mixing. there is a real elegant solution coming out for PI. its dollars but damn! sexy doe. __________________ 2015 M3 MW 6MT - BM3 \| iND 2011 335xi MSport - Alpina shifted FBO on E85 - 388awhp/482awtq
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