[shinysun]

Originally Posted by toohighpsi

All of the Magnuson TVS2650s are now "R"s. The standard TVS2650s units were good to about 2000 CFM at the limit. The patent pending Stage 2 "R" moves 2500 CFM and our latest Stage 3 (near release) is about of 2700 CFM.

The tradeoff is low speed performance. The Stage 2 "R" give the top end benefit with no penalty above 6000 blower speed. Below 6000 it will have slightly less flow than the Standard 2650.
Stage 3? - monster up top, but has losses below about 10,000-12,000 blower speed - more of a race blower than a street piece.

The underhood Magnum DI is designed for up to a 125mm throttle body, while the biggest currently available is 112mm, I expect that we'll see growth beyond that as folks start pushing the limits of the TVS2650R. 125mm is the size needed to fully feed a TVS2650R.

With the Jackshaft units, the limits fall away. Don O Neal will be running a Stage 3 with a 170mm Throttle in his Top Sportsman Camaro shortly. He's currently running our 109mm COPO throttle With Stage 2 TVS2650R to go 200+ MPH in the quarter. Looking forward to see where he ends up when he gets the new unit dialed in, I've attached an image below of the mockups.

Attachment 998271

Thank you for the info.
Is the headunit of your son the standard 2650?

Can I assuem it is the almost same data for all stages from Magnuson around 2000CFM area?

[toohighpsi]

Originally Posted by shinysun

Thank you for the info.
Is the head unit of your son the standard 2650?

Can I assume it is the almost same data for all stages from Magnuson around 2000CFM area?

His Camaro has the TVS2650R, its the only way a Magnum DI is built. Magnuson no longer makes any standard ("Eaton" spec) 2650s. They now all use our patent pending Stage 2 TVS2650R housing.

The stages affect both Volumetric and Isentropic efficiency across the SC operating range. Data is different for every stage.

[shinysun]

Ah, I thought the all underhood designs are the standard version, while the copo styles are meaning R.

Then, please get me educated.

2650(not R) - stage1, Just standard version from Eton.
2650R - stage2, underhood 2650 from Magnuson
2650COPO - stage3, copo style

Is it right?

[ShizzySupra]

As the kids say these days: facts machine printing facts.

[toohighpsi]

Originally Posted by shinysun

Ah, I thought the all underhood designs are the standard version, while the copo styles are meaning R.

Then, please get me educated.

2650(not R) - stage1, Just standard version from Eton.
2650R - stage2, underhood 2650 from Magnuson
2650COPO - stage3, copo style

Is it right?

No, every Magnuson is a TVS2650R - COPO, Magnum DI underhood, and Hellcat all run the Stage 2 up to about 1500HP.

Stage 3 is not on anything yet, but it will on a couple fast drag cars soon. (Not COPO - it is not a legal blower for COPO, nor is it needed, they are only running about 13psi and the 2650R could pump 20psi+ in them if we could get the NHRA to allow it)

[shinysun]

Originally Posted by toohighpsi

No, every Magnuson is a TVS2650R - COPO, Magnum DI underhood, and Hellcat all run the Stage 2 up to about 1500HP.

Stage 3 is not on anything yet, but it will on a couple fast drag cars soon. (Not COPO - it is not a legal blower for COPO, nor is it needed, they are only running about 13psi and the 2650R could pump 20psi+ in them if we could get the NHRA to allow it)

Thank you!

I can not wait for it. Personally, I am using the 2.9 blower and suffering with the way high IAT. I am rotating it on the upper limit about 18000 rpm and seems quite far from the sweet spot. Did try a lot of things to reduce it, but with 91 pump gas plus meth, feel some limition while E85 is not available here.

I expect if I change to 2650, it is still near the island of comp map while CFM is the same as 2.9 (seems even can go farther)

Do you have any clues when the whole kits are ready? I just heard it would be ready around the end of August, but if the other stuff except the intercooler hoses are the same as 2300 kits, I assume it would be the faster.

[toohighpsi]

Originally Posted by shinysun

Thank you!

I can not wait for it. Personally, I am using the 2.9 blower and suffering with the way high IAT. I am rotating it on the upper limit about 18000 rpm and seems quite far from the sweet spot. Did try a lot of things to reduce it, but with 91 pump gas plus meth, feel some limitation while E85 is not available here.

I expect if I change to 2650, it is still near the island of comp map while CFM is the same as 2.9 (seems even can go farther)

Do you have any clues when the whole kits are ready? I just heard it would be ready around the end of August, but if the other stuff except the intercooler hoses are the same as 2300 kits, I assume it would be the faster.

C7 LT4 and Camaro LT1 Magnum DI TVS2650R complete kits will be shipping by the end of the month.

You are correct, the sweet spot on the 2.9 is about 7000 RPM Supercharger speed, it peaks at about 65% and falls like a rock from there. At 18000 RPM it's at about 35% isentropic efficiency - consuming lots of power and making a ton of heat.

In reality it's really close to a TVS2300 from flow capability, and the 2300R will flow more than the 2.9 at significantly higher efficiency.

The TVS2650R has a much bigger performance window than the 2.9 (don't let the size numbers fool you) it is capable of 300-400 HP more than a 2.9 screw.

[Johnny6.1]

Great info here gents. Silly question, do u happen to know if the TVS2650R is going to b CARB certified? Please say yes. Lol

[laynlo15]

We are working on it.

[radz28]

Originally Posted by toohighpsi

C7 LT4 and Camaro LT1 Magnum DI TVS2650R complete kits will be shipping by the end of the month.

You are correct, the sweet spot on the 2.9 is about 7000 RPM Supercharger speed, it peaks at about 65% and falls like a rock from there. At 18000 RPM it's at about 35% isentropic efficiency - consuming lots of power and making a ton of heat.

In reality it's really close to a TVS2300 from flow capability, and the 2300R will flow more than the 2.9 at significantly higher efficiency.

The TVS2650R has a much bigger performance window than the 2.9 (don't let the size numbers fool you) it is capable of 300-400 HP more than a 2.9 screw.

Is the ZL1-LT4 kit the same as Z06?

[Johnny6.1]

Originally Posted by laynlo15

We are working on it.

This is good to hear! Hope it all works out. I was gonna go whipple but after reading all this info I think I need a TVS

[IneedAZ]

So, will the Magnuson kit come with what's needed to relocate the coils or whatever is in the way. Do you lose the coil covers with the install?

[IneedAZ]

What power level are they recommending upping to the 103TB? Do you lose anything going larger with a moderate power level intent. My goals are 700-750rwhp 700tq + range. In addition to the 2650r I will do an overdrive pulley, tb, intake, exhaust, and e85 kit (probably e40ish range)

[radz28]

You might need a cam (fuel lobe) or meth if you wanna run E' at that power range...