Author Topic: ITB's info/projects (Read 147062 times)

deekay · « **Reply #105 on:** July 17, 2010, 06:46:31 PM »

i finally got my wideband installed... and apparently between MarkD and i, we figured out a pretty optimal tune

setup:

-motronic 1.7 w/ MarkD 91-octane chip
-dbilas ITBs
-bosch design-3 24lb/hr injectors
-"power boost valve" adjustable fuel pressure regulator
-2.5" exhaust after cat

the new injectors went in at the same time because my recent smog check showed me being very lean (average HCs:~80, me:10, and CO2 was very low as well)- the old ones were 21lb/hr delphi 2-pintles.

AFR @ WOT fluctuated between 11 and 13 for about half an hour of driving, and then settled in exactly at 12.8, which is what he's stated is optimal here. didn't have to touch fuel pressure at all. i'm amazed i wasn't pinging at WOT before. the car feels a little stronger at both part- and full-throttle with the bigger injectors.

end result- evidently since i'm using injectors basically 25% larger than stock, and still running the stock AFM and cat, apparently ITBs will help you flow a lot more than the stock 19lb/hr injectors will handle. anyone planning on an ITB project should not try to save money there.

fiftytakedowns · « **Reply #106 on:** January 17, 2011, 05:31:16 PM »

How much quicker does it feel compared to stock?

E36-italia · « **Reply #107 on:** February 17, 2011, 09:32:50 AM »

just spotted these two images on speedhunters ...

Does anybody has more info on those itb's?
with no filter...it will be noisy as hell i think.

It's missing also the heater and stuff (no need in a track car)
Any further info 'bout the car will be welcome too!

fiftytakedowns · « **Reply #108 on:** February 24, 2011, 02:20:56 AM »

they are claiming 194 hp

MLM · « **Reply #109 on:** March 01, 2011, 12:46:38 AM »

Thought you guys may appreciate a link to my ITB build thread. Sorry it is on another forum. I may copy it across if there is loys of interest.

http://www.bimmersport.co.nz/forums/index.php?showtopic=28044

Includes CFD analysis of the dbilas plenum and an intended but not yet produced replacement.

nuvolarossa · « **Reply #110 on:** March 01, 2011, 04:16:34 AM »

Quote from: MLM;101874

Thought you guys may appreciate a link to my ITB build thread. Sorry it is on another forum. I may copy it across if there is loys of interest.

http://www.bimmersport.co.nz/forums/index.php?showtopic=28044

Includes CFD analysis of the dbilas plenum and an intended but not yet produced replacement.

nice one, waiting to see the new plenum and those angled trumpets

I'm following!

Nivola · « **Reply #111 on:** March 04, 2011, 11:05:00 PM »

Just thought I'd post my ITBs -- it's been a while.
My current set-up (2.1 stroker on the horizon)...

When I first bought her:

And current (albeit she needs a light steam cleaning):

fiftytakedowns · « **Reply #112 on:** March 05, 2011, 02:56:35 AM »

post it up, I cant wait to see it.

Nivola · « **Reply #113 on:** March 06, 2011, 01:53:17 PM »

Quote from: fiftytakedowns;102027

post it up, I cant wait to see it.

Updated above.

fiftytakedowns · « **Reply #114 on:** March 06, 2011, 08:58:32 PM »

holy shiet man, how does it feel? how does it compare to the Pulse chambers that you had before. (gas mileage change?)

Nivola · « **Reply #115 on:** March 06, 2011, 10:13:51 PM »

Quote from: fiftytakedowns;102077

holy shiet man, how does it feel? how does it compare to the Pulse chambers that you had before. (gas mileage change?)

No comparison, more power and it revs like a banshee up to ~7500 with the associated s/w.

ITBs > any non FI intake system.

My mileage is surprisingly the same.

fiftytakedowns · « **Reply #116 on:** March 06, 2011, 10:33:42 PM »

Quote from: Nivola;102082

No comparison, more power and it revs like a banshee up to ~7500 with the associated s/w.

ITBs > any non FI intake system.

My mileage is surprisingly the same.

thanks for the info, What coils are those?

M42Technik · « **Reply #117 on:** August 10, 2011, 03:11:57 AM »

More info on your setup? Insanely clean, looks like it came that way from the factory! Well done.

-318is- · « **Reply #118 on:** September 20, 2011, 05:05:32 AM »

so looking at some set ups and one listed on this page, says there running s50 tb's via an air box and running the stock maf/afm is this possible?
from what ive gathered you can run 19.5lb 204cc Bosch injectors which the o2 sensor will accomadate and then run higher lift cams with a remap. so can i also on top of this run itbs on stock ecu? i really dont want to get in depth with Ms as if i had to id just do a straight turbo setup as running ms just to have itbs seems pointless for what its worth.

bmwman91 · « **Reply #119 on:** September 21, 2011, 02:40:08 AM »

Hey Nivola, that looks awesome. Do you ever come out to the Bay Area for meets or anything? I'd love to get a closer look and talk car stuff!

Author Topic: ITB's info/projects (Read 147062 times)

-318is-