Hey Tony.... I agree with everything you said.
However, a *same size* comparison was not the issue.
Bill stated the F&B 50 outflows the Fastman 52 and was somehow "better".
My experience shows a F&B 50 *performs* no better or worse than a Magnum
Performance ported stock 50 with the air horns still in place.
THEN I tried a Fastman 52, which improved both ET and speed over both the
50's.
I also said I would expect the F&B 52 to do as well. I don't have a brand
preference, just performance value.
End of story.
RayB
http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net]On Behalf Of Tony
> Cellana
>
> Some miscellaneous ramblings on the topic:
>
> Not knocking anyone's product or thoughts, just tossing mine into the mix.
>
> TBs are a controlled hole in the intake manifold that will allow a certain
> amount of air into the motor. Some motors need more air than others. The
> amount depends on CID, RPM, and the tuning characteristics of the intake
> manifold, cam and valvetrain.
>
> Some motors want more air than others. TOO much air isn't always a good
> thing though. It can cause bogging, off idle hesitation and/or stumble.
> This is often seen when abruptly opening the throttle from idle
> or near idle
> (think jumping off alight or drag racing).
>
>
> I'm NOT discounting Ray's findings, but would rather try to back up the
> reason behind them. Ray has a 5.2 (318). As I said, TOO much air doesn't
> help, and can possibly hinder. The Fastman 52 is a reworked
> factory piece,
> and DOES have a set of 52mm blades. BUT, it does come with the inherent
> issues of a factory TB, and does not flow the same CFM as the F&B 52 which
> also sports a pair of identical sized blades. The F&B because it is not
> based on a factory casting, can make better use of bore size and taper and
> other aerodynamic things that can be learned through fluid dynamic
> engineering.
>
> I was running a heavily tweaked 5.9 (360) factory cam/head combo
> in my R/T.
> I DID see gains going from the Fastman 52 to the F&B 52.
>
> IMO: Ray did not get any additional gains from the F&B due to not needing
> more air PERIOD. If he had been needing more air, he would have achieved
> faster numbers PERIOD. I saw gains because I did need the additional
> airflow due to the additional 42 CID difference between the 5.2 and 5.9
> PERIOD. Again, I am not discounting Ray's findings, only backing them up.
>
>
> That said, I hark back to what I always say. It is all about the COMBO.
> Bigger is not always better in and of itself.
>
>
> I won't make any recommendations, because everyone's combo if different.
> BUT, I will say, I cannot complain about F&Bs service or any
> matter related
> to my dealing with them. Dan is also a standup guy.
>
> Either way, I don't believe you would go wrong dealing with either of them
> IF you decide that you "need" a bigger TB.
>
> TonyC
This archive was generated by hypermail 2b29 : Sun Feb 01 2004 - 16:29:48 EST