MMR identifies a new problem with E-85/racefuel softening the secondary chain guides

[soSincerious]

I'm going to venture a guess that forced inducted engines will suffer these effects at a much quicker rate vs naturally aspirated.

wondering if oil change interval plays into that? I personally feel just wrong about going higher than 5,000 miles on my car ... I haven't done any analysis on my oil or anything ... but would an oil test show the harmful deposits E85 is leaving behind?

 

[pullingees]

As asked earlier, what is the differences in the F150 flex fuel guides and the mustang guides?

 

[djclark]

From an admittedly quick search, it looks like the PN are identical for the F150 and Mustang 5.0L engines...

http://www.tascaparts.com/ford/f-15...engine-cat/engine-scat/?part_name=chain-guide

As asked earlier, what is the differences in the F150 flex fuel guides and the mustang guides?

 

[pullingees]

So I don't get it, other than a cammed motor being cause.

 

[SID297]

While I know these plastic guides have a tendency to wear (basically all modular do it to some degree) I don't believe it can be blamed on E-85 for softening the material. Especially in the minuscule volumes that would be present in the crank case. I'd have to see some controlled tests on the material to support that claim. Still, it's nice to have an upgrade.

 

[devildog1679]

I could be mistaken but if the F150 Flex 5.0 uses the same guides then I would guess we Mustang 5.0 guys are OK to use E85 as I'm sure Ford did extended testing.

 

[hand-filer]

Only because you are hypothesizing rather than providing controlled data.

Unfortunately it seems like we deal with alot of scrutiny with new parts

 

[stangn]

E85 has many know issues. If you've ever seen an engine apart that had poor oil change intervals you'd see it looks like it's been in the bottom of the ocean for years.
The corrision is evident even if large shots of meth are used.

It's a great fuel for making power but comes with a cost. Maintance increases. I'm sure no one on here has had trouble DD for years on E85 but it is a fact.

Do your own research and see!

 

[Tron84]

What I don't understand is that the "claim" is that the 5.0 motor was not designed to run E85 but the f150 5.0 with the same internals is designed to run E85. Somehow the mustang 5.0 is going to suffer from this but not the f150.
I could see issues happening on a car that is never maintained while running e85 or one that is constantly ran without getting up to operating temp to burn out the fuel from the oil.

How about instead of soaking a guide in 100% ethanol you soak it in motor oil with like 1 drop of e85 mixed in to simulate real world conditions? I mean who is using e85 for motor oil?

 

[Blazer707@TBR]

I ran e85 for over 2k-3k miles straight and then tore down for OPG's. I did not see any wear on the tensioners at all.

I now have almost 5k more miles on straight E85. When I put my shortblock in I will post pictures of the tensioners in this thread.

 

[FiveLeeter918]

sub'd

 

[Need4Speed03]

This causes secondary chain failure and ultimately catastrophic engine failure.

So how many engines have you seen suffer catastrophic engine failure directly related to this newly discovered problem?

 

[_Snake_]

So how many engines have you seen suffer catastrophic engine failure directly related to this newly discovered problem?

I was going to ask the same, but of the members here. Anyone had this happen? Or personally know someone this has happened to?

.

 

[slagburn]

I was going to ask the same, but of the members here. Anyone had this happen? Or personally know someone this has happened to?

.

Not once here, plenty of times my oil smelled of E85, those parts are going strong. I would know, just had em in my hands the other day.

 

[Bizarro]

I lurk more these days then anything....but it always seems that MMR's new products (which seem like decent replacements when NEEDED) try to create a problem for their "solution" rather than them actually seeing a proven problem then creating a solution.

Just my impression over several years of watching their posts.

 

[03Sssnake]

I lurk more these days then anything....but it always seems that MMR's new products (which seem like decent replacements when NEEDED) try to create a problem for their "solution" rather than them actually seeing a proven problem then creating a solution.

Just my impression over several years of watching their posts.

This is the pattern I am seeing. For the record I like MMRs stuff, but I do not like their 'scare' approach in positioning their parts. They make great parts that can stand on their own without scare tactics. With regard to these MMR tensioners, if I were changing OP gears and or doing cams etc, I'd probably go ahead and put them in for piece of mind. I am certainly not going to tear it down, because I am worried they might fail do to the ridiculous position being pushed in this thread.

 

[Bizarro]

This is the pattern I am seeing. For the record I like MMRs stuff, but I do not like their 'scare' approach in positioning their parts. They make great parts that can stand on their own without scare tactics. With regard to these MMR tensioners, if I were changing OP gears and or doing cams etc, I'd probably go ahead and put them in for piece of mind. I am certainly not going to tear it down, because I am worried they might fail do to the ridiculous position being pushed in this thread.

My exact thoughts. If/when I'm in my engine I'll probably upgrade with some of there parts....but I don't like "the sky is falling" type of sales BS.

Honestly, I'd be more apt to use another company who sells similar parts JUST because of their sales approach.

 

[Modular Racing]

Guys, this is not a scare tactic or a "sky is falling" , it is simply something we have found, and we have come up with a solution. If you dont believe it is a problem that is your opinion and we respect it. Unfortunately it has been a problem for us and many of the race teams that we work with. We are going to post some pictures and data next week of some chain guides after sitting in E85 polluted oil, then, the members here can make a educated a decision based on the same data and information that was used to create this product - stay tuned, and thank you to the SVT members as usual for your business, we greatly appreciate it!

MMR

 

[Modular Racing]

plenty of times my oil smelled of E85

Exactly, the smell is evident because of the e-85 content in your oil. Glad to hear your guides still look good, it seems certain oils and fuel types are less resistant than others. Time will tell as more and more E 85 Coyotes are being daily driven. We still do not know the full affects of it, but like us and many of the teams we deal with, we simply cant take a chance on a $99 part when the engines our teams are using are $30K+.

 

[CPRsm]

Honestly, I'd be more apt to use another company who sells similar parts JUST because of their sales approach.

So you're saying you would prefer "Hi guys, we made a new part. Don't worry, your original has no chance of breaking so don't be scared. We just made this part just because. Please buy." When they or anyone comes in telling everyone to hurry and tear down their engine before it self destructs, you might have a valid point. Otherwise, come on dude

I lurk more these days then anything....but it always seems that MMR's new products (which seem like decent replacements when NEEDED) try to create a problem for their "solution" rather than them actually seeing a proven problem then creating a solution.

Just my impression over several years of watching their posts.

You should also pay attention to other posts in those threads as well. Not long ago a lower billet gear became available by MMR. Same posts just like yours coming up. Because people had never heard of it, that meant it didn't exist. Until vendors slowly started saying that had also broken them. One vendor claiming to break 3 of them on his engine alone. So what I'm getting at is guys who do it EVERY day, might have a bit more insight on the matter. And it might go over a bit better to ask questions instead of assuming your average coyote owners experience of 1 car, is probably not the end all of what you need to know. Better yet if you don't believe it, just don't buy it lol