hi,ive recently bought a h-plate series 2,i have a strange noise appear when the car comes up on boost,you can hear the turbo spinning up but then there is a loud whistle almost like a release of air from somewhere and the boost seems to hold back!! i have checked all the boost pipes which are samco,ive checked the three pipes from the amal valve and all appear to be fine.Could this possibly be a faulty throttle housing gasket or poss intercooler which is oe??any advice would be appreciated.....

 

It sounds a bit like turbo surge

 

as above, check i/c isnt cracked on the plastic pipe at the top or bottom,

also the gaskets between the inlet and head

 

thanks for replying i am gonna check them today....

 

does the car idle ok? if the whistle is REALLY loud...could be a cracked turbo housing

bassboy

 

whistle could be a small hole somewhere in the boost pipework/ic/inlet etc spray WD 40 over all of it and check to see if the revs rise, if they do then you know where the leak is roughly

 

Or simply a Magnex exhaust

Mine did it loads, never did it when swapped to a Mongoose

 

i had the intercooler off toady and got it pressure tested and was fine,i have ordered a throttle/inlet gasket today and will be replacing it tomorrow.i will try the wd40 once gasket is replaced and i can run the engine up.( oh car has got full mongoose system....)

 

is it possible that an air leak could get worse as the engine gets warmer?