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[Slyder]

lol
From my experience that response sounds like a copout. But I could be wrong and my truck could have been misfiring without throwing any sort of code. Maybe that response only applies to Whipple issues and Roush will take a different approach. We shall see

It's essentially the same response I got when I asked about installing the SPD down-pipes with GESI cats.
I guess what strikes me odd about my reply from them is they recommended a spark-plug gap of .028 and someone else posted that the Whipple kit recommends something like .03 or .031 (don't remember which).

Unless things have changed due to improved spark-plug materials and such, I was always told to err to the smaller side of the recommended gap for boosted engines like turbos and superchargers. ?

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[TexasTruck]

I guess what strikes me odd about my reply from them is they recommended a spark-plug gap of .028 and someone else posted that the Whipple kit recommends something like .03 or .031 (don't remember which).

Maybe that was me We know the FP/Whipple kit is a Whipple Stage 1 kit with a different tune, lid badge, and pulley.... and.... the spark plug gap...

According to the respective instruction manual:
FP/Whipple = 0.028
Whipple Stage 1 = 0.032

I went with 0.031

With so much emphasis on spark plug gap in bold red lettering in the instruction manual my OCD was working overtime when it came time to gap the plugs...... 28 or 32 or 31 or 28, no 31

 

[TexasTruck]

lol
From my experience that response sounds like a copout. But I could be wrong and my truck could have been misfiring without throwing any sort of code. Maybe that response only applies to Whipple issues and Roush will take a different approach. We shall see

No, I think you're probably right I have read misfires can happen at random times and never throw a code. Supposedly there is a misfire counter threshold before a code is set.

When I saw this thread I sent a similar CAT question to the one I sent months ago (I forgot I already asked). Their response was almost identical the my first email.

Please keep us posted on your Roush progress...

 

[Chili]

It sounds like issues with overheating cats is more of a Roush or aftermarket tune from one of the many "best tuners" out there than it is Whipple and FP.

The more boost you make with these, the more heat. The harder you push the tune, the more heat. Couple that with people tuning trucks who don't really have a full grasp of what they're doing despite working for a shop because they are under trained and focusing on every last hp.

A lot of tuners put themself on a pedestal and blame the hardware or freak accident when issues arise. Hardware guys blame the software or a freak accident. You decide.

 

[Davidwnuc]

It sounds like issues with overheating cats is more of a Roush or aftermarket tune from one of the many "best tuners" out there than it is Whipple and FP.

The more boost you make with these, the more heat. The harder you push the tune, the more heat. Couple that with people tuning trucks who don't really have a full grasp of what they're doing despite working for a shop because they are under trained and focusing on every last hp.

A lot of tuners put themself on a pedestal and blame the hardware or freak accident when issues arise. Hardware guys blame the software or a freak accident. You decide.

can you send me links to Roush trucks that have had cat issues? I searched online and didn’t come up with anything. I don’t have facebook but if that is where the issues are being documented i will have my wife get me the info.

 

[Chili]

can you send me links to Roush trucks that have had cat issues? I searched online and didn’t come up with anything. I don’t have facebook but if that is where the issues are being documented i will have my wife get me the info.

Roush uses a roots style blower, Whipple is a twin screw. They are both notorious for making a lot of heat. But a roots will make more heat at the same boost levels.

The 5.0 is a dual overhead cam engine and when you have heads that flow like a 5.0 flow stock, you can cram a lot of air through into the engine. It just keeps making more and more power, unlike something like a Chevy small block out of the box they don't flow as well. So there isn't a point to pushing that much air through a stock engine like there is a coyote. Even though you're making big power with a coyote and a supercharger, and the engine can support it... That blower heat is exponentially hotter the harder you push it.

That's a big contributor to melting cats. There are different strategies to cooling the cats but not all the tuners fully understand how to utilize because they don't result in more power directly. So you take a high output blower and push it even harder with smaller pullies and you make it even more likely to melt the cats.

Try and make sure it's pulling in cold air, it will help. If you're pushing the intake into the fender you need to seal off the engine compartment from the intake.

 

[Davidwnuc]

thanks.
I do understand what is going on. I have had 6 roots blown trucks in the past so i am familiar with the physics. That’s why i offered to send datalogs to Roush so we can make sure the tune is correct.
You said it was more of a Roush issue than a whipple issue. I was hoping you had some examples so when i talk to Roush I could share them.

 

[Chili]

thanks.
I do understand what is going on. I have had 6 roots blown trucks in the past so i am familiar with the physics. That’s why i offered to send datalogs to Roush so we can make sure the tune is correct.
You said it was more of a Roush issue than a whipple issue. I was hoping you had some examples so when i talk to Roush I could share them.

Just the Roush having a roots pushing the same HP will make more heat. This issue seems to pop up more often with Roush and much higher modded whipples. Try googling it or the Facebook page.

 

[Davidwnuc]

Just the Roush having a roots pushing the same HP will make more heat. This issue seems to pop up more often with Roush and much higher modded whipples. Try googling it or the Facebook page.

can you send me links to Roush trucks that have had cat issues? I searched online and didn’t come up with anything. I don’t have facebook but if that is where the issues are being documented i will have my wife get me the info.

i posted this earlier in the thread also

a quick online search and i found 2 powerboosts, a 5.0, and a 2.7L all needing new cats all 2021 or newer.

https://duckduckgo.com/?q=2021+f150+failed+catalytic+converter&ia=web

I am not arguing with you. I just haven’t seen other examples besides in this thread that definitively had a supercharger and cat failure

 

[Viper]

While not really on topic, but while talking about Cats, 22 Limited running 93octane i am going in for my 3'rd Cat replacement. Had trouble all last year and now once again, waiting on shipping...

 

[Davidwnuc]

While not really on topic, but while talking about Cats, 22 Limited running 93octane i am going in for my 3'rd Cat replacement. Had trouble all last year and now once again, waiting on shipping...

i assume you are not running a supercharger based on some of your posts talking about the powerboost?

 

[Viper]

nope totally stock

 

[Chili]

can you send me links to Roush trucks that have had cat issues? I searched online and didn’t come up with anything. I don’t have facebook but if that is where the issues are being documented i will have my wife get me the info.

i posted this earlier in the thread also

a quick online search and i found 2 powerboosts, a 5.0, and a 2.7L all needing new cats all 2021 or newer.

https://duckduckgo.com/?q=2021+f150+failed+catalytic+converter&ia=web

I am not arguing with you. I just haven’t seen other examples besides in this thread that definitively had a supercharger and cat failure

I understand what you're saying, but you're going to have to do the searching and cataloging. I'm not sure if you think it will be proof to Roush or something, it's all anecdotal and doesn't really "prove" anything.

 

[Davidwnuc]

I understand what you're saying, but you're going to have to do the searching and cataloging. I'm not sure if you think it will be proof to Roush or something, it's all anecdotal and doesn't really "prove" anything.

Okay
You are the one who said it is happening to Roush trucks more than others. I asked for your sources because I have not found evidence of that being the case. It’s okay to say that you don’t have actual examples. If I could find others, I would reach out to them and see if I could gather the data, if they don’t exist I won’t bother.

 

[MJG44]

I was looking at going S/C on my 5.0 last year.

Speaking with my local SVT/Roush performance Ford dealer, who sells a ton of Shelbys, according to them they've had a handful of Whipple trucks in with issues but not one of their Roush trucks.

Take it for what it is.

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