Congrats, I am sure the cobra owner was thinking WTF
Thanks, yea he looked a little surprised but he was just as excited as I was to get a good race out of it. This is the first time in 3 years my car has ran right and I could race it.
Wow. Ever wonder why more drag cars use centris over PD blowers?! With the right gearing the centri can run down the PD blown car, even making the same power. When you are at WOT and you shift your rpms dont fall back to 1000rpms. I know when I shift my rpms fall right back into my power band. You have to remember, the PD blowers horsepower still climbs just like a centri blower. Its the torque that is present in the early power band. But when the HP crosses the torque the HP becomes the dominate factor. The centri will make more peak HP at the same boost level because of its efficiency being better then the PD blower. With the right set up the centri will enter the powerband very fast(rear gear, trans, step up ratio, pulley combo) and will stay in its power band. Its the twin screw blowers that really start to level the field of efficiency between the two. The twin screw will still pull till redline and make power where the root screw will fall on its face.
This outcome is not surprising to me at all. Good kill OP.
I hate to do this, as it's inmature however, how many top fuel "being the fastest" drag cars around run centrifugals, you must own a "centrifugal".
anyways, I agree that excess weight and wide spaced automatics are a far cry from the correct application for a centrifugal blower, as is the case with my procharged 01 f 150, but I've also ridden in a newish ws6 trans am with a centrifugal at 8 psi and an older 5.0 lx mustang with a Paxton that didn't impress me either, so please don't ask me why I bought one for our f 150, but I did and it runs good like it should but the boost just isn't there throughout the rev range. I'm not sure what the deal was with the ws6 t/a but it just didn't go very well, however once the old 5.0 with Paxton got moving it did scream, but it was an automatic with 2.7x gears so you didn't see decent boost until you where going at least 35 mph, but again, wrong application for this style of blower.
I also replied to this prior to seeing his full list of mods, I just seen t56, p1sc @ 10psi, and built engine. again bad ass mach 1, nice kill, and if he has good traction I'd put 50$ that a roots at the same boost level would beat it at the track by at least .25 seconds, sorry I like pd blowers, but I'd love to ride in a mach 1 with any sort of power adder. "are you listening Phophizzat?"
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Screaming yellow 04 Cobra coupe
Mac cai/Accufab inlet and tb
Steggy stage 4 port/2.93 on top, 4# lower
BBK longtubes and matching catted X, Magnaflow cb.
stock injectors, BAP, Mafia.
MM subframe connectors
spec 3+/ Liberty 26 spline input shaft.
Nice kill man. Ive seen bolt on/geared mach's beat stock cobra's from a dig and slow rolls. They arent slow cars. Id imaging with your power and weight advantage the cobra had some heavy bolt ons with the stock eaton. For you to just pull a half car or so making upper 400's @ 10psi, whoever owns the cobra probably has a pullied/ported blower. nice kill.
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Mild bolt ons and minor weight reduction.
447hp 458tq
Well just the outcome of your race alone says that I need to open my mind a little to the potential of centrifugal blowers, just for some reason, I haven't been exposed to the right vehicles equipped with them I guess.
Is your blower equipped with a 6 or 8 rib belt drive, my wifes 01 f 150 with the d1sc is only equipped with a six rib setup, and although I finally have the belt slip figured out it sure would have been easier with the 8 rib configuration to start with.
I'm sorry if it sounded as if I was coming down on your car, "as I actually think they are sharper looking cars than the 03/04 cobras", I was just surprised that the blower setup had what it takes to pull you ahead of the Cobra, "simple as that". I don't even recall what the mod list was for the Cobra, but I usually assume that they are heavily modded as easy as it is to do so with those cars.
Well just the outcome of your race alone says that I need to open my mind a little to the potential of centrifugal blowers, just for some reason, I haven't been exposed to the right vehicles equipped with them I guess.
Is your blower equipped with a 6 or 8 rib belt drive, my wifes 01 f 150 with the d1sc is only equipped with a six rib setup, and although I finally have the belt slip figured out it sure would have been easier with the 8 rib configuration to start with.
I'm sorry if it sounded as if I was coming down on your car, "as I actually think they are sharper looking cars than the 03/04 cobras", I was just surprised that the blower setup had what it takes to pull you ahead of the Cobra, "simple as that". I don't even recall what the mod list was for the Cobra, but I usually assume that they are heavily modded as easy as it is to do so with those cars.
I understand what your saying about your truck my F-150 does the same thing. I have the 6 groove pulleys, havent had any belt slip yet.
No hard feelings I understand the skepticism. It really is one of those things that you have to experience first hand
call me crazy but i think that 10 pounds on 10.1:1 compression makes a lil more power an 10 pounds at 8.5:1
your not crazy hahah....8 psi you could cut down mild modded cobras all day long....10+ shouldnt be any issue....love to see a high compression cobra with a huge whipple....now that would be something....
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new #'S 632/520 rwhp on 13psi sae (NO JUICE USED) on 93 octane 12' timing for safety first
PROUD DRAGGER OF THE UPPER 130 CLUB
OLD -BLOWN MACH 464RW STOCK MOTOR 8PSI (SLOW AS BALLZZZZZ)
A friend of mine just said this to me: "I like my 05 GT but I kind of want more low end torque. The mechanic said it had something to do with not having pushrods. Do they make pushrod conversion kits or anything?"
Nice kill. I know what a centri can do also. I had a 2v with 10lbs and 396rwhp and id race my friends 04 wita a cold air always from a roll for some reason he hd traction problems and we'd stay even till 120 or so then id pull a fender at 130 and that was it. id shift and stay right beside him and lose maybe 2lbs .
Nice kill and wasn't there a MM&FF issue not long ago with a stock Termi vs. a stock Mach with a centri running the same boost ? But the Mach pretty much rapped the Termi in well, everything.
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99' Cobra - Promotion present to myself !
Few mods nothing special.
I still wouln't think a Mach 1 on only 10#'s of boost would hang, especially from a centrifugal. never the less must be a strong runner, good job.
A properly sized centrifugal blower @ 10psi will usually make more power then an Eaton roots blower @ 10psi due to centrifugal blowers being more efficient than roots.
For example, my old stock motor Mach put down 478 RWHP on 8 pounds with full exhaust and a meth kit on 93 octane pump gas.
____________________________________ 1997 Cobra
Vortech SC-Trim, Bolt-Ons, Etc.
2004 MACH 1
Vortech SC-Trim, Alcohol, Full Bolt-On, Weight Reduction, Etc. - SOLD
I also know that procharger has had kits out for 03 cobras for a long time and they seem to come off just as fast as they were installed, but yes, they're great.
I can see why people wouldn't want one on an '03 Cobra after looking at Procharger's kit. If I had an '03 Cobra it would have a Whipple or KB before a centrifugal blower.
My main point was that you don't need to spin a centrifugal blower as hard as a roots blower to make good power. I wasn't implying that it's the best blower ever and the only blower you should use in all applications no matter what.
call me crazy but i think that 10 pounds on 10.1:1 compression makes a lil more power an 10 pounds at 8.5:1
Yes it would make quite a bit more power, and if we are comparing centri to roots in this case the power difference widens farther. There are alot of stage 5 ported blowers making 17psi and making just over 500rwhp. This Mach 1 on 10#'s with a centri is at 500rwhp.
[quote=BM1;8988445]I can see why people wouldn't want one on an '03 Cobra after looking at Procharger's kit. If I had an '03 Cobra it would have a Whipple or KB before a centrifugal blower.
My main point was that you don't need to spin a centrifugal blower as hard as a roots blower to make good power. QUOTE]
look up the RPM numbers for a Scew blower at 16psi and a Centri at 16 psi then get back to us
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2001 Zinc Yellow Cobra #2398/3867 Tuned by HorsepowerByHermann
Are we safe here?
No hard feelings I understand the skepticism. It really is one of those things that you have to experience first hand
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