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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 11-20-2010, 11:22 PM   #1
Steven747
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330CI Dinan TB in the long run for mods.

IF i have currently headers, cat-back, intake, pulleys( getting uuc on), and a custom tune would it even be worth putting a dinan tb on? would it do absolutely anything... and i would not be getting any dinan tune in fear of conflicting with my current tune. in compilation with all of my other mods would it do anything? anyone have experience within this particular area? and yes i have searched and nothing really covers this that i have found. Thanks in advance.

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Old 11-21-2010, 10:31 AM   #2
xixixi
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junk not worth it at all
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Old 11-21-2010, 06:25 PM   #3
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junk not worth it at all
thank you



i thought it would put some icing on the cake but guess not
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Old 11-22-2010, 12:14 PM   #4
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It is not a junk product, it just will not yield any more horsepower, because stock throttle body is pritty big, there is just no restriction.
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Old 11-22-2010, 12:37 PM   #5
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cooll just wanted to get that off my chest.. i guess the 8% increase dosent really do anythinng
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Old 11-22-2010, 01:39 PM   #6
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I dyno'd a bored TB without showing a gain. But, it may help me down the road.

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cooll just wanted to get that off my chest.. i guess the 8% increase dosent really do anythinng
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Old 11-22-2010, 04:30 PM   #7
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I dyno'd a bored TB without showing a gain. But, it may help me down the road.
yeah it seems like it would but i guess im just desperate for n/a hp, next has to be cams.
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Old 11-22-2010, 04:33 PM   #8
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Idk, when I put my dinan on I noticed a difference
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Old 11-22-2010, 06:27 PM   #9
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I also noticed a difference, pulls more at the higher RPM'S.
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Old 11-22-2010, 07:11 PM   #10
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did you guys put in on with the tune and then noted the difference? or thats prob a stupid question saying who would get the tb and not the tune, but hey theres always a chance ....?
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Old 11-22-2010, 08:13 PM   #11
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Nope I got the TB after I had my Active tune. I have a Dinan air box as well, so maybe the two work nice together. It's definitely not a bad piece to have once more bolt ons are added.
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Old 11-26-2010, 08:30 PM   #12
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Nope I got the TB after I had my Active tune. I have a Dinan air box as well, so maybe the two work nice together. It's definitely not a bad piece to have once more bolt ons are added.
Cool sounds convincing. I couldent think for a second that it does absolutely nothing. Thanks
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Old 11-26-2010, 09:09 PM   #13
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I thought the primary benefit of the Dinan TB is increased throttle response but also provides a small increase in power. I wonder how much of a benefit an FI'd engine would get from the Dinan TB???
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Old 11-26-2010, 09:44 PM   #14
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I thought the primary benefit of the Dinan TB is increased throttle response but also provides a small increase in power. I wonder how much of a benefit an FI'd engine would get from the Dinan TB???
yeah thats a really good idea. Im wondering if custom tunning companys can tune for this
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Old 11-27-2010, 05:46 PM   #15
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I thought the primary benefit of the Dinan TB is increased throttle response but also provides a small increase in power. I wonder how much of a benefit an FI'd engine would get from the Dinan TB???
Well that's what I'm pretty interested in finding out. I've been seriously concidering an active kit and it doesn't make sense why it wouldn't. I'm suprised the F/I guys haven't discussed this much, or I've just missed it.
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Old 11-27-2010, 07:03 PM   #16
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I found an old email from UED (an old sponsor) in reference to adding the dinan TB to my twinscrew kit.

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I think the difference in power would be marginally increased.

I would expect around 5-10 HP and perhaps slightly more with a dedicated tune for that upgrade.

I briefly looked into adding a throttle body but the cost benefit seemed to be slightly high.

Let me know if that answers your question or if you have any questions!
Obviously, there is no dyno to back it up.
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Old 11-27-2010, 08:16 PM   #17
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Exactly, the increase would be subtle and somewhere around that range. Even though it's not much bigger, the larger diameter will allow more of the compressed air in.

For others wondering, the stock intake manifold/head on our cars aren't designed to allow much more air in than bmw intended. The reason why I feel the TB does gain SOME power with Dinan's kit is because of their tuning. Along with that, the ~3mm wider hole might be the very limit to what the head can take in. The only way to truly take advantage of a bigger TB is to port the head or F/I. So yes, the TB is something to consider if you know what to tweak.

Edit: Plus, now you can find companies online that will take your stock TB and bore it out for MUCH less money. Essentially that's what Dinan does, they don't build a whole new m54 TB from scratch.

Last edited by secono330ci; 11-27-2010 at 08:30 PM.
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Old 11-28-2010, 12:33 AM   #18
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Quote:
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Edit: Plus, now you can find companies online that will take your stock TB and bore it out for MUCH less money. Essentially that's what Dinan does, they don't build a whole new m54 TB from scratch.
"This thread is worthless without a link"...I wish there was a smiley for that

that was a playful facepalm.
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Old 11-28-2010, 10:51 AM   #19
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I'm not shelling out 600 bucks for a feeling. If I'm dropping that much cash, I have to have a dyno to back up what I'm getting. 0 hp gain for 600 dollars isn't in my budget.
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Old 11-28-2010, 11:42 AM   #20
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^ don't buy one unless you can get a GREAT DEAL....I wouldn't pay more than $300 for one. I got a better deal than that on mine but can't say I noticed anything at all once installed. I have never done any dyno's to support any gains or not.
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