Back again: stage 2 whipple knocking sound

[HotboyyP]

After fixing some leaky gaskets, and whipple fixing my file issue, I have yet another problem. Did multiple on/off cycles to bleed the radiators, and they were no longer pulsating or releasing air after about 5-6 cycles. Took the car out on 5 test drives, each about 15-20 miles each. Never hit WOT but got up into the 5-6k rpm’s a few times. Car performed great. Temps were normal. No bizarre codes or messages. Coming home from the last test drive I noticed a faint “knock”. Got home, and it’s sound like normal engine/supercharger noise with the hood closed but when I opened the hood it was extremely loud, louder than it when initially started the test drives. You can’t hear it when driving but it creeps back as you slow down to idle. Sounds like it’s originating from the blower. Sent whipple a email of the videos but I’m just looking to see if yall may know what this is. Car is parked in my garage until further notice to prevent any potential damage. I have attached videos. I know whipple suggest 5w50 oil, currently I have 5w30 as I planned on changing it after the test drives proved everything was functional. Car was driven roughly 80 miles, max speed hit was around 70 mph. Is the engine damaged?

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[Billycar11]

urf man yeah sounds like a rattling pully or the rotors rubbing/rattling take the belt off and spin it by hand jiggle the pullys around see if you feel any looseness.

defiantly not good dont run it anymore as you dont want junk going in your engine if the rotors are rubbing

 

[HotboyyP]

urf man yeah sounds like a rattling pully or the rotors rubbing/rattling take the belt off and spin it by hand jiggle the pullys around see if you feel any looseness.

defiantly not good dont run it anymore as you dont want junk going in your engine if the rotors are rubbing

Ok man thanks. I think I’m gonna tow it to the local performance shop that’s a trusted whipple installer. This thing has been a major headache lol and I really don’t want to damage anything. Test drives were great so I’m hoping after they look it over they can fix whatever is wrong.

 

[Junkyard Dog]

What did you find?

 

[HotboyyP]

What did you find?

Removed the belt. No play in the pulleys. Checked to see if everything was tightened and it seemed that it was. Started it up and the noise wasn’t as prominent but still there. Ran into a fellow s650 whipple and his made same noise. He states it’s “normal”. It’s his DD with well over 50+ rolls. Im still keeping an eye on it though. It really pushing the car much. Taking it to a well rated performance shop at the end of the month for reassurance.

 

[Junkyard Dog]

Ran into a fellow s650 whipple and his made same noise. He states it’s “normal”.

We have a lot of Whipple owners here.

Is this sound normal?

 

[Billycar11]

We have a lot of Whipple owners here.

Is this sound normal?

No

 

[Junkyard Dog]

Other Whipple owners, please chime in and help out this fellow Mustang owner.

 

[HotboyyP]

Here’s what the car currently sounds like

 

[Billycar11]

Here’s what the car currently sounds like

yes thats normal just the ticking from Direct injection im guessing.
thats exactly what mine sounds like

what changed?

 

[HotboyyP]

yes thats normal just the ticking from Direct injection im guessing thats exactly what mine sounds like

what changed?

honestly all I did was remove the belt and check the pulleys. I do know I gave it some spirited pulls after initially installing, and I don’t really drive it that hard often. But currently that’s how it sounds driving to my location with the occasional rip to hear my exhaust.

 

[Q6543]

Recent vid sounds completely normal, that 1st vid had a weird “thump” not a knock… no idea
Did you put 5w50 in as instructed?

 

[HotboyyP]

Recent vid sounds completely normal, that 1st vid had a weird “thump” not a knock… no idea
Did you put 5w50 in as instructed?

5w50 is actually going on today. Last night’s video was with the 5w30 oil running

 

[Droopy_619]

Mine is currently making the same noise. Makes me super nervous driving it. Any suggestions?

 

[Billycar11]

Mine is currently making the same noise. Makes me super nervous driving it. Any suggestions?

yeah same as before.
https://www.mustang7g.com/forums/th...2-whipple-knocking-sound.169232/#post-3394204

sounds like he tightened some pulleys up and it fixed it check your tensioner is in the right range

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