Supercharger....which one?

[illtal]

Yeah, I'm not convinced of that. It's all in the setup. My 3.0 makes over 620 rwtq (and 16 lbs) at 2850 rpm and makes almost 900 rwtq at peak (at 19 lbs). I'm skeptical a smaller PD blower would make more than that, and roots rotors vs twin screw at that.

At the lower power levels, the differences are not meaningful, but the idea that a smaller blower would make more power or torque is a bit of rose glasses/myth I think. The TVS may "SEEM" to punch more but that's probably because it falls off more up top.

Rotor design gets a vote, but it's a stretch to think that a smaller displacement would make more steam anywhere when given apples/apples comparison.

Here's a sheet, at lower rpms there is more available torque on a TVS blower than with the Whipple/centric setups, but when the torque does fall off it is still at 80% of the max towards the redline. 605 torque peak but ~ 500 where the run was shut down. That's 83% or max torque still available.

Edit. This is a 93/meth graph. 3.25" pulley, 11psi steady on the boost gauge.

The AFR line is messed up on the first run due to the active exhaust. The operator put it in the wrong top.

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[Cobra Jet]

Unless I’ve missed it in all these pages, how come Edelbrock hasn’t been mentioned, or is it not being mentioned by name because it’s an Eaton R2650 TVS variant?

According to Edelbrock’s site, their kit for the S550 is also 50 State legal/CARB compliant:
https://www.edelbrock.com/e-force-s...21-ford-mustang-5-0l-r2650-stage-1-15832.html

I’ve seen their kits on quite a few S197 and S550’s - but it seems that folks on here side with Whipples…

 

[illtal]

Unless I’ve missed it in all these pages, how come Edelbrock hasn’t been mentioned, or is it not being mentioned by name because it’s an Eaton R2650 TVS variant?

According to Edelbrock’s site, their kit for the S550 is also 50 State legal/CARB compliant:
https://www.edelbrock.com/e-force-s...21-ford-mustang-5-0l-r2650-stage-1-15832.html

I’ve seen their kits on quite a few S197 and S550’s - but it seems that folks on here side with Whipples…

The sheet I posted is from an Edelbrock 2650 unit. This argumentive guy is only pushing the "Magnuson" unit, but it's all window dressing. The individual manufacturer can design the casings however they want, but the rotor packs are Eaton units.

Harrop has a 2650 unit as well, it is very loud though (whine) I prefer silent but deadly.

 

[josephstef]

I've got the Harrop2650, went with that over the Whipple. As @illtal has mentioned, I wanted torque lower down.

I also had a ESS g3 before that and hated it. Its a street car so want the torque as low as possible which is why the Harrop made sense.

The build quality is amazing, im super happy with it

 

[illtal]

I've got the Harrop2650, went with that over the Whipple. As @illtal has mentioned, I wanted torque lower down.

I also had a ESS g3 before that and hated it. Its a street car so want the torque as low as possible which is why the Harrop made sense.

The build quality is amazing, im super happy with it

Is your harrop unit super whiney?
Surprised you didn't like the ESS. It probably drives like stock for real though.

 

[josephstef]

Is your harrop unit super whiney?
Surprised you didn't like the ESS. It probably drives like stock for real though.

It's actually not too bad, I dont hear it over my exhaust set up unless the valves are closed which its very audible past 3krpm. I've been told it's noticeable outside the car though. I do like the sound though haha.

The g3x did drive like stock but I hated having to rev it past 4krpm to have any fun. Still get that punch with the Harrop but I can control it with my foot which is way more fun for me.

In a straight line the g3 would probably be quicker, but the harrop always leaves me smiling one traffic light to the next

 

[illtal]

It's actually not too bad, I dont hear it over my exhaust set up unless the valves are closed which its very audible past 3krpm. I've been told it's noticeable outside the car though. I do like the sound though haha.

The g3x did drive like stock but I hated having to rev it past 4krpm to have any fun. Still get that punch with the Harrop but I can control it with my foot which is way more fun for me.

In a straight line the g3 would probably be quicker, but the harrop always leaves me smiling one traffic light to the next

I have the 103mm TB and airbox. I can hear some pronounced whistling at idle and right off idle and some whining when in the guts of it from the interior. Nothing crazy though.

I actually have the harrop blower spacer plates as well.

 

[Cux211]

It's actually not too bad, I dont hear it over my exhaust set up unless the valves are closed which its very audible past 3krpm. I've been told it's noticeable outside the car though. I do like the sound though haha.

The g3x did drive like stock but I hated having to rev it past 4krpm to have any fun. Still get that punch with the Harrop but I can control it with my foot which is way more fun for me.

In a straight line the g3 would probably be quicker, but the harrop always leaves me smiling one traffic light to the next

So with the G3X the boost doesn’t come on until north of 4K rpm? This is the stuff I’m trying to figure out, with the lack of torque from these coyotes I want as much tq down low as I can get, same as you will just be a fun street car

 

[SolarFlare]

This has to be the most asinine comment I've ever seen. Man this is what it's like to be a hardcore dick rider?

I wouldn't say alarming.....but he is right. Id say the only alarming part is that whipple isnt really acknowledging the issues.

 

[illtal]

I wouldn't say alarming.....but he is right. Id say the only alarming part is that whipple isnt really acknowledging the issues.

I have a problem with saying they fail every couple thousand of miles. I know a few people with them and haven't turn them in yet for maintenance. So I find it crazy talk. I'm sure people that spin the shit of out them see more failures though.

 

[SolarFlare]

I have a problem with saying they fail every couple thousand of miles. I know a few people with them and haven't turn them in yet for maintenance. So I find it crazy talk. I'm sure people that spin the shit of out them see more failures though.

its worse than you think.

 

[Angrey]

its worse than you think.

Now you're triggering my OCD and paranoia. I've seen a few issues with the rotor coatings and what not, but haven't really seen a ton of "failures" is it the tolerances with the rotors or what seems to be the prevailing issues?

 

[Angrey]

Here's a sheet, at lower rpms there is more available torque on a TVS blower than with the Whipple/centric setups, but when the torque does fall off it is still at 80% of the max towards the redline. 605 torque peak but ~ 500 where the run was shut down. That's 83% or max torque still available.

Edit. This is a 93/meth graph. 3.25" pulley, 11psi steady on the boost gauge.

The AFR line is messed up on the first run due to the active exhaust. The operator put it in the wrong top.

I haz several questions. 1) Are these two runs two different blowers? Cause the only way to back up that claim would be to install the two different blower systems and run the same pulley on them and see the curve each one creates. This appears to me to simply be the same blower on two different pulls. There's nothing here to methodically prove or suggest that the 3.0 wouldn't make those same torque values in the lower rpm range (on a 3.25 pulley).

 

[SolarFlare]

Now you're triggering my OCD and paranoia. I've seen a few issues with the rotor coatings and what not, but haven't really seen a ton of "failures" is it the tolerances with the rotors or what seems to be the prevailing issues?

I’m told couplers, bushings, some have had bearing issues specially if ported and case being out of spec with leads to rotor contact. They had 5 revisions before first production batch, and they’ve made one more revision after production batch.

 

[vaeevictiss]

It's actually not too bad, I dont hear it over my exhaust set up unless the valves are closed which its very audible past 3krpm. I've been told it's noticeable outside the car though. I do like the sound though haha.

The g3x did drive like stock but I hated having to rev it past 4krpm to have any fun. Still get that punch with the Harrop but I can control it with my foot which is way more fun for me.

In a straight line the g3 would probably be quicker, but the harrop always leaves me smiling one traffic light to the next

That's kinda why i want the ESS lol. I like that below 4k it just drives like it does now. Its my daily driver so its cool there's something that runs like stock when im just driving to work but runs like a GT500 when i wanna play lol. Different strokes i guess.

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