I'm planning on doing a BBK plenum/TB combo. I've heard that a 70mm is better for a stock GT, but I'm wondering if my car would benefit more from a 75mm because of my cams. What do you guys think? 70 or 75?
What size TB for my car?
- Thread starter Skidzz
- Start date
75mm or nothing. There's no negative effect associated with going from a 70mm to a 75mm on a Modular motor. There isn't going to be any great benefit either, but if you plan on a power adder or any other more extensive mods in the future, you're going to wish you went with the larger T/B.
hognutz
New Member
if buying new get 75mm. If buying used get what ever you get a better deal on.
certain plenums react different to TB size. I have not seen one react negatively to the larger size though. Some of them flow exactly the same with 75 or 70 though. I have seen raw flow data on the accufab that I have and it flow exactly the same 70 vs 75mm. the C&L for example though flowed worse with the 70mm.
the BBK is new enough I have not seen flowbench numbers on it.
certain plenums react different to TB size. I have not seen one react negatively to the larger size though. Some of them flow exactly the same with 75 or 70 though. I have seen raw flow data on the accufab that I have and it flow exactly the same 70 vs 75mm. the C&L for example though flowed worse with the 70mm.
the BBK is new enough I have not seen flowbench numbers on it.
Well, as long as the 75 won't run worse than the 70, I'll go 75. I figure a TB/plenum combo will complement my cams well. I still think I'm going to do 4.10's first though.
myponyrocks
I have more billet on the Stang than most women ha
- Apr 18, 2004
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GDawg said:
good job making the club meeting today Gary....
go 75 as every one else said, it won't hurt.
That's what I've got. It's a nice unit. Smooth operating, low cost. Nice all around piece.Skidzz said:
tha great one
Founding Member
has anyone heard anything about professional products? I know they are really cheap but I heard they have extra castings on them. anyone else ever tried them before?
Pennywise2 said:
I do a 2 hour commute in the morning and a 2 hour commute coming home at the end of the day. That with the fact that I'm getting ready to be replaced by an outsourced company and I'm in the middle of my KB install... not much else I think about. Except that my girlfriend wants to jump my bones every night.
Life is rough...
BurningRubber
10 Year Member
- Dec 6, 2004
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tha great one said:
Ive heard they are good products from the people that have actually used them. Who cares if they are made in China? If I get a tb/plenum im going with PP.
I hear you Gary life is rough indeed.GDawg said:I do a 2 hour commute in the morning and a 2 hour commute coming home at the end of the day. That with the fact that I'm getting ready to be replaced by an outsourced company and I'm in the middle of my KB install... not much else I think about. Except that my girlfriend wants to jump my bones every night.
Life is rough...
Install that KB and forget the girlfriend lol.
When you do finally install your KB post some pics
and I would like to know how your install went.
Pennywise2 said:I hear you Gary life is rough indeed.
Install that KB and forget the girlfriend lol.
When you do finally install your KB post some pics
and I would like to know how your install went.
Took some pics tonight. I'm at step 150 out of 278 steps. Can't ignore my girlfriend cause she is as hot as my car and I am lucky in both senses.
Now I'll quit highjacking this thread. I apoligize...
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