BBK Throttle body/ plenum combo
10-03-2010, 04:55 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jul 2010
Location: Illinois
Posts: 251
BBK Throttle body/ plenum combo
Well its about that time for me to buy another "performance" mod 
before winter gets here and I was wondering if anyone has bought this yet and have any inputs. Will this mod show any gains for just a bolt on car or will it just help the engine breathe better? Its seems like such a good deal other than buying both parts seperate and spending more mulah
before winter gets here and I was wondering if anyone has bought this yet and have any inputs. Will this mod show any gains for just a bolt on car or will it just help the engine breathe better? Its seems like such a good deal other than buying both parts seperate and spending more mulah
10-03-2010, 05:00 PM
#2
speed'n
Join Date: Apr 2009
Location: MN
Posts: 2,248
Acufab combo or else Trick Flow combo.
Then along with that the two different combo packs either come with 70mm or 75mm. Otherwise the mm does go higher but you'd have to buy the t/b & plenum seperately. The 75mm is a good all-around choice for but n/a as well as s/c engines. 70mm is fine too but you'd want at least 75mm if you ever are wanting to add a supercharger.
Yes I think it worth the money to get this. I mean you aren't going to see a ton but a lil boost of a pick up. If you haven't gotten a tuner yet i'd invest it 1 before a t/b or plenum This way then you'd get the most out of your t/b & plenum in terms of gains. I don't know the exact number around 10 hp?
Then along with that the two different combo packs either come with 70mm or 75mm. Otherwise the mm does go higher but you'd have to buy the t/b & plenum seperately. The 75mm is a good all-around choice for but n/a as well as s/c engines. 70mm is fine too but you'd want at least 75mm if you ever are wanting to add a supercharger.
Yes I think it worth the money to get this. I mean you aren't going to see a ton but a lil boost of a pick up. If you haven't gotten a tuner yet i'd invest it 1 before a t/b or plenum This way then you'd get the most out of your t/b & plenum in terms of gains. I don't know the exact number around 10 hp?
Last edited by sonicx; 10-03-2010 at 05:18 PM.
10-03-2010, 06:12 PM
#4
4th Gear Member
Join Date: Apr 2008
Location: New York
Posts: 1,306
remember a TB is only a glorified valve. The stock one does fine at WOT under 5000rpm or so, but above that it holds power back. With that mod you'll most gain upper rpm power and maybe even lose a bit down low. Most people report low end gains because of the increase throttle response which isn't the same thing (you are basically getting to WOT sooner with less pedal movement) but the engine can only suck in so much air. So at low rpm you can be flooring it without flooring it (if that makes since). If you aren't getting into boost the most you'll need is 70mm. any more and you'll lose velocity charge of the air flowing through the TB. Think of a massive valve, with a given amount of air going though it, its moving very slow. with a smaller valve the air speeds up and in a way is "injected" in...
Given all this, the 70mm to 75mm isn't a big deal and we are talking about 1hp or so which is the same with the argument about x vs h exhaust....
Summary:
70mm or 75mm will be fine, but don't expect gains under 5000 or so rpm. =P
EDIT:
I noticed you dont have gears in your mod list... do gears WAYYY before plenum/tb. trust me, you'll be glad you did.
Given all this, the 70mm to 75mm isn't a big deal and we are talking about 1hp or so which is the same with the argument about x vs h exhaust....
Summary:
70mm or 75mm will be fine, but don't expect gains under 5000 or so rpm. =P
EDIT:
I noticed you dont have gears in your mod list... do gears WAYYY before plenum/tb. trust me, you'll be glad you did.
Last edited by stangalator; 10-03-2010 at 06:14 PM.
10-03-2010, 07:22 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
The stock plenum is the weak link in the OEM intake--here are Accufab's numbers and my annotations/comments...
10-04-2010, 03:52 PM
#6
3rd Gear Member
Join Date: Mar 2010
Location: KS
Posts: 555
I personally noticed a big difference with the BBK 78mm 1 pc tb/plenum. Probably not a lot if any by way of horsepower, but throttle repsonse is much better. I did also notice at the track that the best shift point for my car moved up about 400 rpm before starting to fade out of the best power curve.
No I don't have any data to back this up just my opinion which the OP asked for.
No I don't have any data to back this up just my opinion which the OP asked for.
10-04-2010, 05:12 PM
#7
5th Gear Member
Join Date: Aug 2007
Location:
Posts: 3,189
on an NA car, any of them are fine. accufab is proven the best combo, and by best i mean like 1 hp more than others on an NA car. i personally dont like anything made by BBK but i know alot of ppl are running the tb/plen because of the price and i havent seen any complaints.
i bought an accufab used, wasnt about to pay 450$ for 5 horsepower.
i bought an accufab used, wasnt about to pay 450$ for 5 horsepower.
10-04-2010, 08:41 PM
#9
2nd Gear Member
Join Date: Jul 2010
Location: Adams,MA
Posts: 454
On a N/A 4.6L mustang I think the 78mm throttle body is massive
and overkill.I could see mustang enthusiasts lossing a small
amount of lowend torque with this 78mm BBK intake plenum /
throttle body combo.
For a N/A 4.6L mustang a 70mm throttle body flows plenty of air.
The biggest throttle body I would use on a N/A 4.6L mustang
would be a 70mm throttle body.
I have a Trickflow plenum with matching Trickflow 70mm throttle body
and I noticed alittle better throttle responce and more mid range and top
end horsepower.Overall I'm happy with my purchase Trickflow makes
some quality parts.
and overkill.I could see mustang enthusiasts lossing a small
amount of lowend torque with this 78mm BBK intake plenum /
throttle body combo.
For a N/A 4.6L mustang a 70mm throttle body flows plenty of air.
The biggest throttle body I would use on a N/A 4.6L mustang
would be a 70mm throttle body.
I have a Trickflow plenum with matching Trickflow 70mm throttle body
and I noticed alittle better throttle responce and more mid range and top
end horsepower.Overall I'm happy with my purchase Trickflow makes
some quality parts.
10-04-2010, 10:45 PM
#10
4th Gear Member
Join Date: Mar 2009
Location: NC
Posts: 1,909
def consider the 78mm if you have cams or if you are going F/I. I still think that it is the best deal for a T/B & Plenum, but there are plenty of people who say it is overkill. Overkill or not, it is still the best deal you will find on a new T/B & Plenum.