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      01-06-2009, 11:50 AM   #1
JuniorDee
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dinan throttle bodies available

http://www.dinancars.com/store/home.php?cat=818



dont shoot the messenger
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      01-06-2009, 12:49 PM   #2
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      01-06-2009, 12:56 PM   #3
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So many 2k price points ;-)
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      01-06-2009, 01:02 PM   #4
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Based on how the car responds in anything but sunny weather in Sport Plus I would think you're giving up ease of driving. How much faster throttle response than the sport plus do you need?
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      01-06-2009, 01:19 PM   #5
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I guess this assumes the rest of your intake system can get enough air to the throttle bodies? And the exhaust lets all the added burnt fuel out? Are the throttle bodies the limiting factor on the intake side of this engine?
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      01-06-2009, 01:22 PM   #6
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Quote:
Originally Posted by argonboy View Post
Based on how the car responds in anything but sunny weather in Sport Plus I would think you're giving up ease of driving. How much faster throttle response than the sport plus do you need?
I agree entirely with you statement. I donīt think these cars need improved throttle response. Iīve driven mine on track on a number of occasions and am convinced that car may require a tad more power than stock w/o weight increases if possible and brakes. The rest I think is just fine. The power increase should not be more than 10bhp (the S85 throttle bodies produce as much as 12bhp) so not much there probably either. May be worth it in conjunction with other mods though.
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      01-06-2009, 01:51 PM   #7
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I suspect there is more coming so this is prob meant as a package with other items that takes care of the entire inlet section.
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      01-06-2009, 02:01 PM   #8
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nice but pricey.
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      01-06-2009, 02:32 PM   #9
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Sure you can look at it as 7bhp for $2000 but then you are over looking the 2 points that it gives you. That's what makes is a bargain
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      01-06-2009, 06:37 PM   #10
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Yeah, they had them on the Steve Dinan's car at the time i was there last week. I talked to a few people there and they all said that the car feels so much different ... :

I guess the only way to find out is to go there and test drive it ...
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      01-06-2009, 06:41 PM   #11
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Quote:
Originally Posted by doba_s View Post
Yeah, they had them on the Steve Dinan's car at the time i was there last week. I talked to a few people there and they all said that the car feels so much different ... :

I guess the only way to find out is to go there and test drive it ...
That is true. But before you do so, find out what other mods that car has.
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      01-06-2009, 06:41 PM   #12
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Quote:
Originally Posted by doba_s View Post
Yeah, they had them on the Steve Dinan's car at the time i was there last week. I talked to a few people there and they all said that the car feels so much different ... :

I guess the only way to find out is to go there and test drive it ...
please do and provide us with a report
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      01-06-2009, 10:50 PM   #13
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BMW-M-Mexico, PG, JMD and I all looked into adding these onto our stroker motor but we decided to can it since the HP to $$$ ratio is so poor.

Im sort of shooting in the dark here so correct me if this is not accurate. If you have bigger throttle bodies you must bore out the exhaust valves to make it worth anything otherwise it becomes a bottleneck. IF I remember correctly this is why we didnt do it, even though we have bored exhaust vales and header it still wasnt going to do much for us.
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      01-06-2009, 11:09 PM   #14
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Terrible benefit ratio!!!!!!
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      01-07-2009, 03:12 AM   #15
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I know a buddy of mine that does Porsche Throttle bodies I'm sure he'll do the M3 for a helluva lot less then $2k. How hard is it to get to the stock throttle bodies? Major work? or a few bolts/screws?
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      01-11-2009, 11:29 AM   #16
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This is a mod that you don't do in isolation.

Start with exhaust, FDR, chip then finally throttle bodies. I suspect that the high revving M3 intake can take advantage of the added flow. The proposed benefits of each mod will not be additive, so you can't at 6hp plus, 15 hp, plus 25 hp and get 46 hp. The final answer will be more like say 38 to 40 hp, plus the impact of FDR. Still, this will result in a signficantly faster M3.

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      01-11-2009, 12:49 PM   #17
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Quote:
Originally Posted by Jonmartin View Post
I know a buddy of mine that does Porsche Throttle bodies I'm sure he'll do the M3 for a helluva lot less then $2k. How hard is it to get to the stock throttle bodies? Major work? or a few bolts/screws?
if Dinan listed 8h of labor, then my guess is it is not just a few screws ... They listed 4.7h labor for the LSD installation and it took them ~5.5h to do that.
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      01-11-2009, 12:51 PM   #18
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Quote:
Originally Posted by PencilGeek View Post
Funny, they asked me the same thing. "When you get your car done, will you come by and let us test drive it?"

Just kidding. But they did ask me to come by when the car is done...but they never asked to drive it. And since I only live a mile away, I'll be happy to come by and see if there's some business we can do together.



I think the efficacy of this mod depends on a few other factors. Where is the airflow bottle neck? Is it at the intake valves? If so, then bigger throttle bodies won't do much as the intake valves are the restrictor. Is it at the size of the plenum chamber? If so, then the bigger throttle bodies won't do much. If the plenum is sufficient, and the intake valves are sufficient, and the throttle bodies themselves are the bottleneck, then a bigger throttle bodies could help get better throttle response and more horsepower.

I don't doubt they'll be effective on the larger capacity stroker, but will they be cost-effective? That's the question that needs to be answered during the development of our motors.
I know, Jeff told me that he spoke with you ...

Were you able to ask anybody at Dinan that question ? I am sure Steve should have some kind of answer
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      01-11-2009, 01:05 PM   #19
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also if you look at their website, they are saying that the High Flow Throttle Bodies and Free Flow Mufflers will add another 20hp to the M5's stroker ...

I am sure PG they will be interested to test them on your car, so maybe you will clear the air ...
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      01-27-2009, 09:33 PM   #20
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I ordered a Dinan throttle bodies today, along with the Dinan 4.10 and Active Auotowerke's muffler set. They'll all be installed at once, so I won't be able to give part by part benchmarks, just one final seat of the pants review.

Waiting on deliveries now and I'll take the completed car back on 2/14 and post impressions.

Dave
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      01-27-2009, 09:41 PM   #21
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Quote:
Originally Posted by dcstep View Post
I ordered a Dinan throttle bodies today, along with the Dinan 4.10 and Active Auotowerke's muffler set. They'll all be installed at once, so I won't be able to give part by part benchmarks, just one final seat of the pants review.

Waiting on deliveries now and I'll take the completed car back on 2/14 and post impressions.

Dave
cool ! let us know
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      01-27-2009, 10:09 PM   #22
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cool ! let us know

Anybody know a good Denver area dyno operator?

Dave
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