Popping on decel

[DMCTurbo]

after those common chks, you may have spit a shim from valve

I hope not, I upgraded to the anti-shim spitting buckets, high rpm valve springs and retainers.

 

[yamamarc]

Each time I have come across issues on popping on decal was from a exhaust leak pre turbo!( test it hot)



Diagnosis mode: key on hold both left and right bottom button on gauge for 10 seconds

 

[sideshowBob]

As Marc said...here is a good link to TPS info

Winder TPS(Throttle Position Sensor): Please chime in everyone

After watching Cannondale's video I was curious(bored)so I decided to check out all the functions on our stock factory WINDER Gauge. I was abit taken back to find that my TPS(Throttle Position Sensor) would only max out at 79.6 degrees when I held my throttle lever WOT as shown in video below...

ty4stroke.com

 

[DMCTurbo]

Thanks everyone!

 

[sledding rocks]

dmc . on my sled once i started it at idle it didnt sound right at all , a very small popping sound , once i put my hand around the bellow connector on the header u can feel the hot air pushing out threw the crack , i also went out and noticed quickly it wasnt making boost like it did before , spool was poor , which made the sled feel very lazy . my fix is easy , but expensive , not good if u cant get 1500 miles from a header ,

 

[DMCTurbo]

dmc . on my sled once i started it at idle it didnt sound right at all , a very small popping sound , once i put my hand around the bellow connector on the header u can feel the hot air pushing out threw the crack , i also went out and noticed quickly it wasnt making boost like it did before , spool was poor , which made the sled feel very lazy . my fix is easy , but expensive , not good if u cant get 1500 miles from a header ,

I'm hoping it's as simple as that. Sure will be pissed if my headers cracked at 1500 kms.

 

[max rolph]

i want to replace my clamp on the header to turbo... does anyone know the size?

 

[Fleecer]

dmc . on my sled once i started it at idle it didnt sound right at all , a very small popping sound , once i put my hand around the bellow connector on the header u can feel the hot air pushing out threw the crack , i also went out and noticed quickly it wasnt making boost like it did before , spool was poor , which made the sled feel very lazy . my fix is easy , but expensive , not good if u cant get 1500 miles from a header ,

What's the fix?

 

[sledding rocks]

What's the fix?

new header

 

[sideshowBob]

I'm hoping it's as simple as that. Sure will be pissed if my headers cracked at 1500 kms.

What header is on your sled?

 

[DMCTurbo]

What header is on your sled?

TD GEN 1

 

[sideshowBob]

TD GEN 1

Sounds like there are a few members that have had flex joint cracking issues on that header. Dave says the Hurricane header's internal joint still seals even if the flex joint should crack.

see post number 77 in this thread

Tune differences

No, boost pressures should be very close. Power will likely come on sooner and harder and if your trying to attain bigger speeds of 125+ i think the pm will help there. The header tune will make same power at lower boost pressure. I believe 270 header pm tune runs around 15psi vs the 17-17.5 of...

ty4stroke.com

 

[74Nitro]

Sounds like there are a few members that have had flex joint cracking issues on that header. Dave says the Hurricane header's internal joint still seals even if the flex joint should crack.

see post number 77 in this thread

Tune differences

No, boost pressures should be very close. Power will likely come on sooner and harder and if your trying to attain bigger speeds of 125+ i think the pm will help there. The header tune will make same power at lower boost pressure. I believe 270 header pm tune runs around 15psi vs the 17-17.5 of...

ty4stroke.com

Isn't that the same as the factory? Doesn't it just prevent the leak from becoming major?

 

[sideshowBob]

Isn't that the same as the factory? Doesn't it just prevent the leak from becoming major?

I would say thats the case...but don't know for sure.

 

[DMCTurbo]

Did the glove over the exhaust trick with the engine cold and then warmed up and she snuffed out right away. No sign of exhaust leaks.