Jackson Racing Super Charger Rotrex Reliability Poll

[GrabTheWheel]

Originally Posted by mrg666

You cannot come to 50% fail rate conclusion with just 6 reports. I am not even sure all of those 6 are related to Rotrex quality or even correct at all. This poll is so far from reality.

Obviously it's not 50%. If I was Rotrex I'd be unsatisfied with a failure rate of over lets say 5%. You should be happy, obviously you got a good one and were lucky. Others like myself were not so lucky.

I'm done with boxer engines and I'd say direct injection motors as well so I really have no stake in this. It's just crazy to me that with all these Rotrex kits out there nobody can post a mustang dyno over 350 whp on E85. Where as there are a ton of 350 WHP E85 non hub dyno sheets from TVS 1320 kits with the standard pulley.

I really want to see C38 standard pulley E85 vs Edelbrock or Harrop standard pulley E85 on track comparison. Same driver, same tires, same suspension setup. My money would be on the TVS 1320 kit every time. Hell, I'd even contribute money towards seeing such a test take place. @CSGMike

[GrabTheWheel]

Originally Posted by mrg666

JR FRS with JRSC won SCCA championship. You don't know what you are talking about.

When you have the better driver that can make all the difference!

[mrg666]

Originally Posted by GrabTheWheel

Obviously it's not 50%. If I was Rotrex I'd be unsatisfied with a failure rate of over lets say 5%. You should be happy, obviously you got a good one and were lucky. Others like myself were not so lucky.

I'm done with boxer engines and I'd say direct injection motors as well so I really have no stake in this. It's just crazy to me that with all these Rotrex kits out there nobody can post a mustang dyno over 350 whp on E85. Where as there are a ton of 350 WHP E85 non hub dyno sheets from TVS 1320 kits with the standard pulley.

I really want to see C38 standard pulley E85 vs Edelbrock or Harrop standard pulley E85 on track comparison. Same driver, same tires, same suspension setup. My money would be on the TVS 1320 kit every time. Hell, I'd even contribute money towards seeing such a test take place. @CSGMike

If you are done with the boxer engines, why are you still interested in C38 vs TVS 1320? Didn't you also just write above that Rotrex is not good?

Originally Posted by GrabTheWheel

When you have the better driver that can make all the difference!

What do you mean? Of course you need a good driver for SCCA championship and that driver needs a good car.

[GrabTheWheel]

Originally Posted by mrg666

If you are done with the boxer engines, why are you still interested in C38 vs TVS 1320? Didn't you also just write above that Rotrex is not good?

Only because I think I'm one of the few people on here who have owned both kits. I think the ft86 community should know the truth...

[GrabTheWheel]

Originally Posted by mrg666

If you are done with the boxer engines, why are you still interested in C38 vs TVS 1320? Didn't you also just write above that Rotrex is not good?



What do you mean? Of course you need a good driver for SCCA championship and that driver needs a good car.

My point is I think Oscar Jr. would be faster even if you put him in a different car. It's not the best comparison. Hopefully somebody like Speed Academy can do an unbiased track test.

[mrg666]

Originally Posted by GrabTheWheel

My point is I think Oscar Jr. would be faster even if you put him in a different car. It's not the best comparison. Hopefully somebody like Speed Academy can do an unbiased track test.

Oh another one! thanks for reminding. Speed Academy won Ontario 1500 with JRSC. Rotrex was their choice, just like Oscar Jr. You know, you don't make any sense at all.

[GrabTheWheel]

Originally Posted by mrg666

Oh another one! thanks for reminding. Speed Academy won Ontario 1500 with JRSC. Rotrex was their choice, just like Oscar Jr. You know, you don't make any sense at all.

You're telling me you wouldn't be interested in seeing an unbiased track comparison between the 2 superchargers?

There is no doubt that the Rotrex is great on track when it's working properly. I'm just not sure it's hands down the best kit for track driving like it's touted to be on here when compared to let's say the Harrop kit.

I personally think the Speed Academy car would have faired better in the head 2 head S2K comparison with a different set up. Maybe I'm wrong but I can't be the only one who's curious.

[mrg666]

Originally Posted by GrabTheWheel

You're telling me you wouldn't be interested in seeing an unbiased track comparison between the 2 superchargers?

There is no doubt that the Rotrex is great on track when it's working properly. I'm just not sure it's hands down the best kit for track driving like it's touted to be on here when compared to let's say the Harrop kit.

The topic is not track performance or the best kit for track, although JRSC is proven on track.

You claimed Rotrex was bad. Let's ignore my experience/opinion; CSGMike replied that you are wrong on Rotrex reliability. You are still insisting on that argument What can I say ... sure that is an opinion.

[Pat]

Originally Posted by GrabTheWheel

It's just crazy to me that with all these Rotrex kits out there nobody can post a mustang dyno over 350 whp on E85. @CSGMike

It's crazy to you that, with a few modifications, a 2 liter engine from a car that costs $25,000 cannot make over 350 whp? Ummmm.....I think a reality check is in order.

[GrabTheWheel]

Originally Posted by Pat

It's crazy to you that, with a few modifications, a 2 liter engine from a car that costs $25,000 cannot make over 350 whp? Ummmm.....I think a reality check is in order.

No, it's crazy to me that with Ethanol and a BAR of boost the Rotrex can't make a legit 350 WHP. Any other setup will!

[Pat]

Originally Posted by GrabTheWheel

No, it's crazy to me that with Ethanol and a BAR of boost the Rotrex can't make a legit 350 WHP. Any other setup will!

There are many more variables to consider. It's just not that simple. I have no dog in this fight, so I'm just going to agree to disagree.

[GrabTheWheel]

Ok. Back to the facts for those of you whose Rotrex failed how long did it take to get a replacement blower? When my first C30 failed after less than 3000 miles I was told it would take up to 10 weeks to get a replacement under warranty. I then opted to just pay for a new blower and get refunded down the road. The crazy part is it STILL took 10 weeks to get me a new blower even though I paid for it upfront. I've heard that the Vortech supercharger warranty wait times are similar BUT I assume if you are willing to pay it won't take 10 weeks! It should be noted that my C30 seemed to fail very quickly after I made the switch to E85 although I was still on the standard pulley so I don't see how that should have made a difference.

If anyone else has owned both a Rotrex and TVS kit feel free to comment but this was my experience.

Rotrex

Pros-
Least likely to cause harm to your engine
Makes cool noises
Runs coolest and will be least effected by hotter ambient temps

Cons-
Makes less power
Makes lots of noises
Not the most reliable

TVS

Pros-
Makes more power
Quiet operation
More reliable OEM quality blower

Cons-
More likely to cause damage to a stock motor (on E85)
Quiet operation
Runs hotter and will be more effected by high ambient temps

Unfortunately I only had the opportunity to drive lots of canyons and autoX in both cars, never got to track either setup and that's why I'm so interested in the comparison. My friend with a Harrop car says it stays nice and cool on track days though.

[weederr33]

Originally Posted by GrabTheWheel

Ok. Back to the facts for those of you whose Rotrex failed how long did it take to get a replacement blower? When my first C30 failed after less than 3000 miles I was told it would take up to 10 weeks to get a replacement under warranty. I then opted to just pay for a new blower and get refunded down the road. The crazy part is it STILL took 10 weeks to get me a new blower even though I paid for it upfront. I've heard that the Vortech supercharger warranty wait times are similar BUT I assume if you are willing to pay it won't take 10 weeks! It should be noted that my C30 seemed to fail very quickly after I made the switch to E85 although I was still on the standard pulley so I don't see how that should have made a difference.

If anyone else has owned both a Rotrex and TVS kit feel free to comment but this was my experience.

Rotrex

Pros-
Least likely to cause harm to your engine
Makes cool noises
Runs coolest and will be least effected by hotter ambient temps

Cons-
Makes less power
Makes lots of noises
Not the most reliable

TVS

Pros-
Makes more power
Quiet operation
More reliable OEM quality blower

Cons-
More likely to cause damage to a stock motor (on E85)
Quiet operation
Runs hotter and will be more effected by high ambient temps

Unfortunately I only had the opportunity to drive lots of canyons and autoX in both cars, never got to track either setup and that's why I'm so interested in the comparison. My friend with a Harrop car says it stays nice and cool on track days though.

I don't recall my Cosworth TVS900 to have some of those cons. It ran cooler than most kits due to the W2A intercooler, and was damn quiet too. So I don't think those are correct. Maybe for a Roots like the Sprintex.

[GrabTheWheel]

Originally Posted by weederr33

I don't recall my Cosworth TVS900 to have some of those cons. It ran cooler than most kits due to the W2A intercooler, and was damn quiet too. So I don't think those are correct. Maybe for a Roots like the Sprintex.

Sprintex is twin screw. I said that TVS which is roots is near silent. I wouldn't say the TVS blowers run hot but IAT's are higher from what I noticed and I also noticed more loss of power on the street with hot temps but there was also more power to lose.