help needed please

help needed please

Author
Discussion

2.5bluenob

Original Poster:

1,620 posts

183 months

Sunday 14th September 2014
quotequote all
Right, my car has developed a problem. its has started making a throaty sound that is really loud. It only does it under load. the best way of describing it is- it sounds similar to a car does when you remove its air filter or change the standard one for a performance filter. it does it to about 5000 revs then above that the engine noise sounds as it should. I cant hear anything when the car is stationary. And the cars performance seems as it should when giving it a bit of welly.
Cheers steve

daddysumo

2,545 posts

220 months

Monday 15th September 2014
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Loose or split boost hose maybe... hard to spot splits sometimes...

2.5bluenob

Original Poster:

1,620 posts

183 months

Monday 15th September 2014
quotequote all
daddysumo said:
Loose or split boost hose maybe... hard to spot splits sometimes...
hi Steve, my first thought was a boost hose. But i seem to be making good boost (1.4Bar) surely i would be losing boost if i had a split pipe? unless the turbos are able to overcome the amount of pressure lost?

Gadgeroonie

5,362 posts

243 months

Tuesday 16th September 2014
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see if your intercooler has cracked on the side seam

mgbond

6,749 posts

239 months

Tuesday 16th September 2014
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1.4bar. That's an awful lot for a 2.5. What power u running and is this on std turbos?

tonyvan

909 posts

215 months

Tuesday 16th September 2014
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mgbond said:
1.4bar. That's an awful lot for a 2.5. What power u running and is this on std turbos?
It's a 3ltr !!!!!

mgbond

6,749 posts

239 months

Tuesday 16th September 2014
quotequote all
Still. That a lot for a 3ltr. What power u running and assume engine has been tampered with smile

2.5bluenob

Original Poster:

1,620 posts

183 months

Tuesday 16th September 2014
quotequote all
mgbond said:
Still. That a lot for a 3ltr. What power u running and assume engine has been tampered with smile
ok my boost gauge might not be accurate and its hard to look at it and keep an eye on the road when the hammer is down lol.
Its 615 horses from memory.

2.5bluenob

Original Poster:

1,620 posts

183 months

Tuesday 16th September 2014
quotequote all
Gadgeroonie said:
see if your intercooler has cracked on the side seam
Id be shocked if it was cracked as its a pro alloy one but i will have a good look round it.
Cheers
Steve

mgbond

6,749 posts

239 months

Tuesday 16th September 2014
quotequote all
2.5bluenob said:
mgbond said:
Still. That a lot for a 3ltr. What power u running and assume engine has been tampered with smile
ok my boost gauge might not be accurate and its hard to look at it and keep an eye on the road when the hammer is down lol.
Its 615 horses from memory.
Ah, at 615 then u may well be running close to 1.4

TuxMan

9,011 posts

245 months

Tuesday 16th September 2014
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We have seen a couple of the pro alloy intercooler split on the high BHP cars !!

2.5bluenob

Original Poster:

1,620 posts

183 months

Tuesday 16th September 2014
quotequote all
ok just had a little look at the intercooler and cant see anything obvious, looking at the welds on the ends etc.