Big power starlets are nothing but a pain in the arse
- Thread starter Captain Starlet
- Start date
richglanzav
Member +
shocked by that...mine ran over 250hp for a year without a dumpvalve (im not an idiot lol 
) apsolutely no problems whatsoever.
thing is tho i thought if u had compressor surge u cud hear it really bad? like a loud funny chattering type sound
and dude i reckon ule have more fun at 1.4bar with a td04. faster spool and ample power hope it goes well 4 ya
) apsolutely no problems whatsoever.thing is tho i thought if u had compressor surge u cud hear it really bad? like a loud funny chattering type sound
and dude i reckon ule have more fun at 1.4bar with a td04. faster spool and ample power hope it goes well 4 ya
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TheStarletGT
Member +
i dont have a bov, and it creates mega surging noises like a supra with t88 turbo.
hardcoreep
Member +
You people are weird. Honestly. WOW!
If you have no BOV and cannot hear the surge then a)the boost pressure is lower than the ability of the compressor housing to fill b)you had a leak somewhere else in the system that was relieving pressure.
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Stulet-GTT
Member +
I dont have a BOV, Tryed a few an jus hated them an the sound...
Captain Starlet
Member +
one pipe i didnt check had a split that had to get bent quite considerable to see, problem solved
its still getting a map by chris though next week
its still getting a map by chris though next week
popsy09
Munster Area Rep.
one pipe i didnt check had a split that had to get bent quite considerable to see, problem solved
its still getting a map by chris though next week
so you staying td05 ??
hardcoreep
Member +
Again, weird that you would believe that. A pressure leak wouldn't destroy the blades. At most the compressor wheel would snap off the shaft as it overspeeds. I prety much predict you'll have a another dead turbocharger on your hands if not soon within the next three months. The compressor surge is stalling the turbo and causing it to make contact with the inside of the housing due to the pressure imbalance. However, good luck with that.
Jay
Admin
I'm not running any BOV's on mine either. Frankly I consider myself an idiot anyway so won't take offence lol..
I've always felt that until I actually see a failure firsthand that I can attribute to compressor surge I'd take my chances.
Car #1 is an auto daily running .8 bar on a Tong GT Spec for coming up on two years now.
Car #2 was a daily running 1.6bar on a K26 for over a year. In fact it's been running 1.8bar since the spring.
Both have had little hassle except the K26's downpipe gasket died of old age. The auto wouldn't see the same stress as a manual would on gear change so I can see past the fresh Tong turbo holding up but surely the K26 should have shit the bed already given the circumstances? Have you seen many cases of this locally Rory? You're getting me worried mate lol.
Cheers in advance,
Jay
I've always felt that until I actually see a failure firsthand that I can attribute to compressor surge I'd take my chances.
Car #1 is an auto daily running .8 bar on a Tong GT Spec for coming up on two years now.
Car #2 was a daily running 1.6bar on a K26 for over a year. In fact it's been running 1.8bar since the spring.
Both have had little hassle except the K26's downpipe gasket died of old age. The auto wouldn't see the same stress as a manual would on gear change so I can see past the fresh Tong turbo holding up but surely the K26 should have shit the bed already given the circumstances? Have you seen many cases of this locally Rory? You're getting me worried mate lol.
Cheers in advance,
Jay
Phil
Super Moderator
were you just thinking the turbo might be screwed? or did you lose blades previous captain?
Phil
edit to add i was also one of the idiots (unlike jays sort of passive lunacy im a more hardcore sort of professional idiot lol) that didnt run a bov for 1-2-3 years on a ct9/ct9hybrid/td04 all on the car in disscussion without issue.(blew an engine twice but no turbo failure)
Phil
Phil
edit to add i was also one of the idiots (unlike jays sort of passive lunacy im a more hardcore sort of professional idiot lol) that didnt run a bov for 1-2-3 years on a ct9/ct9hybrid/td04 all on the car in disscussion without issue.(blew an engine twice but no turbo failure)
Phil
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Jay
Admin
True but are those the exceptions or are those the rules?
We don't often hear of turbo failures.. In most cases they just get replaced and no one investigates further.
The only one I can think of was Spud's (NOT Spuddy) black V with the VFsomething or other on it. Instant turbo death at the toll booth from Dublin. The seals packed up without any warning and the blades jammed. Never got a good look at the turbo after removal but that's one possible case. Then again I'd need to doublecheck if he had a BOV fitted or not lol.
Would be nice to hear of anyone who has seen some surge kills.
We don't often hear of turbo failures.. In most cases they just get replaced and no one investigates further.
The only one I can think of was Spud's (NOT Spuddy) black V with the VFsomething or other on it. Instant turbo death at the toll booth from Dublin. The seals packed up without any warning and the blades jammed. Never got a good look at the turbo after removal but that's one possible case. Then again I'd need to doublecheck if he had a BOV fitted or not lol.
Would be nice to hear of anyone who has seen some surge kills.
hardcoreep
Member +
As I said. If you don't hear surge, then the pressure is being released from somewhere. Take some soapy water and spray down the engine while under idle. Rev the engine and watch where it bubbles up. In a completely sealed system the surge sound will be evident and on its way to causing damage. I have seen cars that run without BOVs and they survive for the above reason, and as I said b)they're running low boost c)have a long enough tract from the turbocharger to the throttle body (generally with an oversized intercooler) to absorb the pressure d)the compressor housing may also retain enough space to absorb the extra pressure.
I've always wondered why many people on this site seem to have lower figures than us here, suffer so much engine/turbo failure, and I think I might have found one of the reasons why.
Anyway to each their own. I my apologies if I offended any with my idiot comment, but any forced induction performance specialist would say the same. Its one of the basics of turbocharging.
I've always wondered why many people on this site seem to have lower figures than us here, suffer so much engine/turbo failure, and I think I might have found one of the reasons why.
Anyway to each their own. I my apologies if I offended any with my idiot comment, but any forced induction performance specialist would say the same. Its one of the basics of turbocharging.
Jay
Admin
But I'm getting serious surge..
Which IHI turbos did you refer to bro? Is their resistance in the design/specification or is it just to do with component strength?
I see a serious amount of Garret turbos in work failing (the joys of VW warranty) and most of those are due to seal failure on standard engines which I can base nothing on unfortunately.
Which IHI turbos did you refer to bro? Is their resistance in the design/specification or is it just to do with component strength?
I see a serious amount of Garret turbos in work failing (the joys of VW warranty) and most of those are due to seal failure on standard engines which I can base nothing on unfortunately.