AWD Turbo installment contemplation! Need help - BMW 3-Series (E90 E92) Forum

haitz16 · 01-09-2013, 05:26 PM

Well as the title says im having a huge contiplation on having the AWD turbos installed on my car. I have been sitting on it for almost a year now. I have a 07 335i with

-BOV (Installed)
-Intake (Installed)
-Exhaust Delete (Installed)
-DP (Not installed)
-Intercooler (Not installed)
-AWD Turbos (Not installed)

Everything listed that’s Not Installed would be installed if I did have the turbos installed. I used to have a JB4 but it keep on giving me problems so I sold it, so as of right now I DO NOT have a tune in the car. So basically im wondering if I should install the rest of the parts or not because im not sure if I NEED a tune to have the turbos work correctly in the car or is it just highly recommended? If I had all of these parts installed would I have a lot of problems and would the care be a money pot after it? I understand things break but I don’t want stuff to break all the time. No I do not track the car but I would like to take it to the drag strip but not very often.

Thank you for the feedback.

rismo · 01-09-2013, 05:30 PM

You can install everything besides the DP's for that you need something to surpress the O2 sensor cat warnings.

you will have a slight bump in performance, but almost 100-150whp below your potential.. assuming AWD turbo's are a kind of stage 2 turbo's. It would almost be criminal to not have a tune with such a config.

Consider Cobb or procede... altough pretty sure that tje JB4 could do the job.

haitz16 · 01-09-2013, 05:45 PM

Quote:

Originally Posted by rismo

You can install everything besides the DP's for that you need something to surpress the O2 sensor cat warnings.

you will have a slight bump in performance, but almost 100-150whp below your potential.. assuming AWD turbo's are a kind of stage 2 turbo's. It would almost be criminal to not have a tune with such a config.

Consider Cobb or procede... altough pretty sure that tje JB4 could do the job.

I already sold the JB4. I wouldnt mind getting another tune but just wondering would it be worth it if i didnt or is it needed to get one for the job to be done.

Gugs · 01-09-2013, 05:50 PM

What "problems" were you having with the jb4? Misfiring?

Most likely they will arise again regardless of which tune you choose.
Best to get the car 110% before spending the money on the turbo/install and being left with problems after.

haitz16 · 01-09-2013, 05:52 PM

Quote:

Originally Posted by Gugs

What "problems" were you having with the jb4? Misfiring?

Most likely they will arise again regardless of which tune you choose.
Best to get the car 110% before spending the money on the turbo/install and being left with problems after.

Yes it was misfiring and then also fuel pump but i got that replaced.

Markyd83 · 01-09-2013, 06:09 PM

300whp vs 450whp. It would be stupid not to get a tune again. Waste of money on parts without it.

brusk · 01-09-2013, 06:29 PM

I'm no turbo expert but looking at the pics of that vs RB's and others in the recent turbo threads that looks like an upgraded stock sized turbo which already is capable or 400+HP so if that is the case I would consider selling those and buying a tune. Without a tuner to adjust make adjustments you can do all you want to these cars and it will only result in stock like performance at best.

Envuks · 01-09-2013, 10:20 PM

Quote:

Originally Posted by brusk

I'm no turbo expert but looking at the pics of that vs RB's and others in the recent turbo threads that looks like an upgraded stock sized turbo which already is capable or 400+HP so if that is the case I would consider selling those and buying a tune. Without a tuner to adjust make adjustments you can do all you want to these cars and it will only result in stock like performance at best.

I'm thinking the car wouldn't run properly without a tune. While our ECUs are pretty good, I'm thinking larger turbos might be a bit rough without any software changes to support... I might be off base though as I'm not an expert.

Ænema · 01-09-2013, 11:43 PM

AWD turbos aren't much different than the stock MHI units. The car will run and drive just fine without a tune. The only this is you may experience some overboost induced throttle closures but at the stock boost level you probably won't even feel them.
With the catless DPs you will throw a CEL without a tune or DPfix.

However, that's a long list of parts(and a lot of money) to waste because the car isn't tuned to take advantage of them. The right thing to do would be to fix the misfire issue and then install the bolt-ons.

01-09-2013, 05:26 PM	#1
haitz16 Second Lieutenant Drives: 07' 335i Join Date: Mar 2011 Location: Rochester, New York Posts: 283 iTrader: (3) Garage List 2007 335i [0.00]	AWD Turbo installment contemplation! Need help Well as the title says im having a huge contiplation on having the AWD turbos installed on my car. I have been sitting on it for almost a year now. I have a 07 335i with -BOV (Installed) -Intake (Installed) -Exhaust Delete (Installed) -DP (Not installed) -Intercooler (Not installed) -AWD Turbos (Not installed) Everything listed that’s Not Installed would be installed if I did have the turbos installed. I used to have a JB4 but it keep on giving me problems so I sold it, so as of right now I DO NOT have a tune in the car. So basically im wondering if I should install the rest of the parts or not because im not sure if I NEED a tune to have the turbos work correctly in the car or is it just highly recommended? If I had all of these parts installed would I have a lot of problems and would the care be a money pot after it? I understand things break but I don’t want stuff to break all the time. No I do not track the car but I would like to take it to the drag strip but not very often. Thank you for the feedback. __________________ E92 07 335i-
	Tweet

01-09-2013, 05:30 PM	#2
rismo Captain Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe Posts: 727 iTrader: (0)	You can install everything besides the DP's for that you need something to surpress the O2 sensor cat warnings. you will have a slight bump in performance, but almost 100-150whp below your potential.. assuming AWD turbo's are a kind of stage 2 turbo's. It would almost be criminal to not have a tune with such a config. Consider Cobb or procede... altough pretty sure that tje JB4 could do the job. __________________ BMW 335 E92 08 - Full options - RIP BMW 335 E92 09 - Full options - DKG - Procede Rev 3 - Vishnu Meth and Chargepipe - Forge Diverter Valves - Vishnu Flex Fuel Kit- AR Catless DP - Afe Intake - Helix IC - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - EBC Yellow Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PSS - M-Tech Body - M-Strutbar

01-09-2013, 06:29 PM	#7
brusk First Lieutenant Drives: 2008 135i Coupe Join Date: Jan 2012 Location: Dallas, TX Posts: 360 iTrader: (1)	I'm no turbo expert but looking at the pics of that vs RB's and others in the recent turbo threads that looks like an upgraded stock sized turbo which already is capable or 400+HP so if that is the case I would consider selling those and buying a tune. Without a tuner to adjust make adjustments you can do all you want to these cars and it will only result in stock like performance at best. __________________ 2008 135i - Cobb AP, MS DP's, Berk street exhaust, AMS IC, BMS DCI, CDV delete, Quaife LSD, M3 control arms, M3 rear SF bushings, SS brake lines.

01-09-2013, 11:43 PM	#9
Ænema Captain Drives: BMW Join Date: Aug 2012 Location: Arizona Bay Posts: 863 iTrader: (0)	AWD turbos aren't much different than the stock MHI units. The car will run and drive just fine without a tune. The only this is you may experience some overboost induced throttle closures but at the stock boost level you probably won't even feel them. With the catless DPs you will throw a CEL without a tune or DPfix. However, that's a long list of parts(and a lot of money) to waste because the car isn't tuned to take advantage of them. The right thing to do would be to fix the misfire issue and then install the bolt-ons. __________________ "I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

01-09-2013, 05:50 PM	#4
Gugs Cynical Drives: E92 JetBlack Join Date: Jul 2012 Location: Long island Posts: 356 iTrader: (0)	What "problems" were you having with the jb4? Misfiring? Most likely they will arise again regardless of which tune you choose. Best to get the car 110% before spending the money on the turbo/install and being left with problems after.

01-09-2013, 06:09 PM	#6
Markyd83 Captain Drives: 335i coupe Join Date: Apr 2010 Location: Chicago Posts: 712 iTrader: (2)	300whp vs 450whp. It would be stupid not to get a tune again. Waste of money on parts without it.