820/548 with a whipple gen 3 on 93

JCSIX13

New Member
Established Member
Joined
Jun 10, 2016
Messages
29
Location
MA
How much boost? Did you replace the oil pump and timing gears?

Thanks
Jack
 

johnkn

Well-Known Member
Established Member
Joined
Dec 4, 2004
Messages
802
Location
LaPlata, MD
Interesting curves, torque virtually flat across the board and hp looks like it was drawn with a ruler. Not sure I've ever seen anything like it.
 

SlowSVT

Well-Known Member
Established Member
Joined
Aug 7, 2004
Messages
8,272
Location
Los Angeles
The hp they are getting just bolting a Whipple on a Voodoo engine running pump gas is pretty phenomenal. I would think people would be jumping on this like it's open bar at the Ritz, it would make for the ultimate Mustang EVER! I don't recall 1 supercharged GT350 build thread on this site. Blower swaps on the Terminator and early GT500's fell from the sky like rain and still do. Why no blower GT350 that would make for some great threads on this site?
 

Cobra(ed) Up

Active Member
Established Member
Joined
Aug 26, 2004
Messages
463
Location
Va.
The hp they are getting just bolting a Whipple on a Voodoo engine running pump gas is pretty phenomenal. I would think people would be jumping on this like it's open bar at the Ritz, it would make for the ultimate Mustang EVER! I don't recall 1 supercharged GT350 build thread on this site. Blower swaps on the Terminator and early GT500's fell from the sky like rain and still do. Why no blower GT350 that would make for some great threads on this site?
What has fallen from the sky is threads or articles that talk about all the reasons voodoo motors should not be boosted. I think most people are scared to boost. (like me)
 

grd951

Member
Established Member
Joined
Jan 25, 2017
Messages
53
Why is that torque number so low?


Sent from my iPhone using svtperformance.com
 

ANGREY

Well-Known Member
Established Member
Joined
Oct 24, 2017
Messages
553
The reason more people haven't done the blower build is numerous.

1) Caution. Unlike the termi example you gave, these cars are made from the factory to be Naturally Aspirated. Rather than a boost friendly lower Compression, these cars are an N/A friendly higher compression and more than just moderate boost poses a real threat of failure and limited longevity. Additionally, there's unknowns and concerns about torqueing on the snout of the flat plane crank. I could delve into a bunch of fear/hysteria about forged internals (and what qualifies as forged and what doesn't), aluminum forged vs. steel forged, etc, but the bottom line, until there's a bunch of pioneer's, many people will be apprehensive to risk their $60k+ car (with a $20k+ engine) to nuking it with a blower setup that wasn't meant to be from the factory.

2) Purpose. This is (from Ford) an IRS, track focused machine. Additional power and torque never hurt, but it's debate worthy (another thread would probably create a long spirited debate as to whether the pro's/con's of adding a blower help or hurt the 350's track capability). I plan on slapping a whipple on, but detuning it to a safe and respectable 650-700 rwhp. I'm not trying to break any HP records or win any drag races, I just want a more spirited and torqy drive and I'm willing to pay for it, add more weight to the front and slightly disrupt the balance of the car to get it. I'm unique. Most guys that want to put on a blower want to make as MUCH power as possible, which can make the car more difficult to drive and still doesn't get you a good drag car (an 800+ hp whipple is in no man's land, it would be an out of control monster in the turns and still wouldn't be a top notch contender on the strip).
 

SlowSVT

Well-Known Member
Established Member
Joined
Aug 7, 2004
Messages
8,272
Location
Los Angeles
What has fallen from the sky is threads or articles that talk about all the reasons voodoo motors should not be boosted. I think most people are scared to boost. (like me)

Agree, but the vendors who sell the kits thinks it's a great idea! I'm curious how well the engine holds up under boost but I admit I'm not the one writing the checks to pay for all this. The though of wadding a voodoo engine after spending all that coin on mods is not very comforting.
 

Weather Man

Persistance Is A Bitch
Established Member
Joined
May 18, 2012
Messages
25,932
Location
MN
I still don't understand

Sent from my SM-G955U using Tapatalk

With the compression ratio the tuner is manipulating vct and spark to limit torque until safely past peak torgue to prevent knock. Same strategy being used with GT500 and ecoboost. The only kicker is that your fuel has absolutely got to be the real deal 93.
 

GNBRETT

Well-Known Member
Established Member
Premium Member
Beer Money Bros.
Joined
Oct 14, 2010
Messages
4,587
Location
Middle Earth
cause the supercharger sucks engine power simply to produce engine power. they run off an engine belt connected to the crankshaft. ur essentially powering an air pump with another air pump.

it needs engine power to make power and therefore TQ is robbed which is why a Turbo is more efficient cause it uses the motors own heat to make power. waste energy is essentially converted to make power.

on race gas at the higher levels of HP that gap between HP and TQ gets smaller with a blower especially a centrif blower. timing and other tuning changes make that possible with race gas thats not possible with straight 93 octane unless you thro Methanol at it then it becomes race gas essentially.

an Auto with the properly selected TQ Converter will also help.

also the Centrifugal blower will make less heat then the PD and make more HP in the upper boost levels but they require RPM to make power so therefore you lose a lot on the low end grunt which makes for a shitty street car.

Why is that torque number so low?


Sent from my iPhone using svtperformance.com
 

tones_RS3

I like members members.
Established Member
Premium Member
Joined
Jan 29, 2016
Messages
21,334
Location
MA
Why is that torque number so low?
I was under the impression low torque numbers are the way they are to save the cylinder walls.
Can anyone confirm or deny this?
 

grd951

Member
Established Member
Joined
Jan 25, 2017
Messages
53
cause the supercharger sucks engine power simply to produce engine power. they run off an engine belt connected to the crankshaft. ur essentially powering an air pump with another air pump.

it needs engine power to make power and therefore TQ is robbed which is why a Turbo is more efficient cause it uses the motors own heat to make power. waste energy is essentially converted to make power.

on race gas at the higher levels of HP that gap between HP and TQ gets smaller with a blower especially a centrif blower. timing and other tuning changes make that possible with race gas thats not possible with straight 93 octane unless you thro Methanol at it then it becomes race gas essentially.

an Auto with the properly selected TQ Converter will also help.

also the Centrifugal blower will make less heat then the PD and make more HP in the upper boost levels but they require RPM to make power so therefore you lose a lot on the low end grunt which makes for a shitty street car.

Typically blowers have been the unit of choice for stout torque numbers regardless of its parasitic effect.


Sent from my iPhone using the svtperformance.com mobile app
 

Users who are viewing this thread



Top