Supercharged 5.7 is backfiring at heavy throttle

Did you ever find out why... poke'n a dead thread with no answer

 

Has anyone had issues with belt chirping? I’ve tried changing tensioner but belts only last about 5-10,000 miles then start to chirp

 

Which pulley and belt are you running?

 

Dayco belt with pulley that came with

 

You could try the gates green belt. I'm running the included belt and pulley with no issues. I've heard the gates belts are better.

https://daptuning.com/online-store/ols/products/gates-green-hd-belt-for-magnusontrd-sc-57l-tundra

 

Thanks I’ll give it a shot, Napa recommend that belt also

 

The tensioners are crap...especially if not using an OE version. The additional cost for non-aftetmarket is worth the cost. Does the squeaking/whining happen more at cooler temperatures or every cold start? I only start hearing noises on cold starts after sitting overnight outside...granted, it's zero degrees where I'm at.

I have had no issues with the Mag belt and pulley "knock on wood." I do plan on an upgrade when it needs to be rebuilt tho...only 55k miles on the setup now...

 

I get the squeaky when it's real cold (sub freezing) but I just spray high grade silicone on the belt while idling, it's dangerous but doable...watch out for the fan blades!!! But that takes care of any cold weather noises for about a month. I haven't felt any chirping or slipping either, appox 30kmiles on the SC.

 

Yes It usually starts doing it when it gets cold out, when I replaced the tensioner I used OE. I can’t seem to find a heavier duty tensioner for the TRD. I’d like to do different pulley just not sure what to go with yet

 

I feel you will discover you did all this but still get noises...it will always be the tensioners fault 90% of time...one almost needs a greasable pulley bearing to help...

 

I wish magnuson maid a higher tension tensioner for it but according to them they don’t have any issues with belts chirping