View Poll Results: Do you Believe me or Disagree
Voters: 9. You may not vote on this poll
Single Plane Intakes... Loss of Torque?
05-01-2009, 09:05 PM
#73
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
He didn't win, I just get tired of hearing about a car it took him 14 years to get in the 11's with with an outdated intake. It's a known fact that single plane intakes loose torque down low. It may not be enough to matter to some people but to those running a car that weighs in over 3000 pounds it will. Dual Plane intakes have become so good in the past several years (ie RPM Air Gap) that just about anything that makes most of it's power will be quicker using one over a single plane like the Victor Jr. While the Victor may show a better peak number the fact is that engine has to make the journey to peak hp. In most cases a in an engine of around 450hp there will be about a 25 lbft torque increase across the board over the Vic Jr. Instead of looking at peak power smart people look at overall power. It heavy street cars torque matters. It's been proven to death. I'm sure the people that build them know whats going on. Thats not just my theory, Thats the industry standard.
Intakes like the Weiand X-Celerator, Action Plus,Edelbrock Torker, Holley Street Dominator and a few more are just chapters in intake history.
Intakes like the Weiand X-Celerator, Action Plus,Edelbrock Torker, Holley Street Dominator and a few more are just chapters in intake history.
05-01-2009, 09:19 PM
#74
6th Gear Member
Join Date: Dec 2003
Location: cape giradeau,mo
Posts: 8,872
i'm sorry ,but when does an intake give shyt how much a car weighs???an intake alone does not carry the car!..
i go to the track almost every friday/sat...and i have yet seen a fast car run anything,but a sp intake...and most of these door slammers run 5.80's to 6.0's in the 1/8 mile...yes most are geared at 4.56's,but half the field that show up drive there,and have 4.10's,and weigh over 3500lbs...i guess the hp/tq down low isn't impressive enough to cover the 1/8th mile in those time brackets?
i go to the track almost every friday/sat...and i have yet seen a fast car run anything,but a sp intake...and most of these door slammers run 5.80's to 6.0's in the 1/8 mile...yes most are geared at 4.56's,but half the field that show up drive there,and have 4.10's,and weigh over 3500lbs...i guess the hp/tq down low isn't impressive enough to cover the 1/8th mile in those time brackets?
05-01-2009, 10:19 PM
#79
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
....... reason why both can cruise @1500 rpm's in 5th. gear in day to day traffic, and merge into a highway w/out downshifting at all.
.....setup with a SP intake capable of idling @750 RPM's, 15" - 17"Hg. of vacuum, make 20+ MPG daily driving it, and still rev to 7000 RPM's (while making power BTW) when required.
05-01-2009, 10:37 PM
#80
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
One thing I will add to this discussion, and I've said it before....
SP intakes are typically designed around the stock displacement of the engine they're for, in the case of the Vic Jr for a 302, it's designed for a 302. When you start putting an intake like that on a 331 or 347 etc, everything changes. Piston velocity during induction is much higher at the same rpm, and therefore the induction pulse is much stronger. It changes the dynamics of how the intake functions, and all of a sudden the torque loss typically associated with an intake of that type(if one were to exist within a certain combination) isn't an issue, since the stronger induction pulse will bring the charge in at a much higher velocity. In the case of some strokers they may actually make more bottom end torque with a SP intake because the DP intake may just be too restrictive even at lower rpm, or the nature of the fluid flow changes such that it favors the larger intake. It's a bigger engine with much better breathing abilities that's using an intake designed for a smaller engine turning more rpm. Again though, it depends on how the package is set up.