Hi!
okay, I managed to size my old style gen 1 blower (OD25% TB 20psi 315 whp) and bought a good set off -98 gtp rotors..
Sanded the rear of the case flat so I managed to save the ported case and snout from the old unit.
(Same blower that I did the rotor pack bearing rebuild years ago and it was my own stupidy that it went now..temps got too high this time, 15+kmiles and really abusing it meantime, drag race+street etc. not bad)
Then the questions:
I have some rubbing occurring when I assemble the unit. The front end off the rotors rubs the case the whole circle.
What could cause this?
It´s really heavy to turn and I think I have to remove the coating from the edges on this part anyhow!!!
Anyone else had some clearance issues with GTP coated rotors???
I´m still using this set cause the gtp:s have lower mileage rotor bearings ( Not rebuilding a pack anymore )
Other question:
Should I peel/use some acid to take off the coating allready since With my setup I think I will get into trouble with the intercooler( As I read today..wish that I´ve knowed that before)
I could use some thin piston coating instead to keep the temps low and coat rear of the case too at the same time to prevent sticky effect? This would only be made to keep the rotor from sizing so badly/keep rotors cooler..not for tight clearance..
(This new blower will anyhow have at least 0.015" back clearance..just in case.)
When the edges wear off because the high temps+boost I think the rest off the coating flyes to my IC!!
What do you think and what would dissolve the cotaing ones and for all so I could get easily bare aluminium rotors?
thank you advance
Sami
Finland
PS: not needing the extra 1-3psi since I´m doing sc+turbo setup now..turbo will take over after 3500-4000rpm.
okay, I managed to size my old style gen 1 blower (OD25% TB 20psi 315 whp) and bought a good set off -98 gtp rotors..
Sanded the rear of the case flat so I managed to save the ported case and snout from the old unit.
(Same blower that I did the rotor pack bearing rebuild years ago and it was my own stupidy that it went now..temps got too high this time, 15+kmiles and really abusing it meantime, drag race+street etc. not bad)
Then the questions:
I have some rubbing occurring when I assemble the unit. The front end off the rotors rubs the case the whole circle.
What could cause this?
It´s really heavy to turn and I think I have to remove the coating from the edges on this part anyhow!!!
Anyone else had some clearance issues with GTP coated rotors???
I´m still using this set cause the gtp:s have lower mileage rotor bearings ( Not rebuilding a pack anymore )
Other question:
Should I peel/use some acid to take off the coating allready since With my setup I think I will get into trouble with the intercooler( As I read today..wish that I´ve knowed that before)
I could use some thin piston coating instead to keep the temps low and coat rear of the case too at the same time to prevent sticky effect? This would only be made to keep the rotor from sizing so badly/keep rotors cooler..not for tight clearance..
(This new blower will anyhow have at least 0.015" back clearance..just in case.)
When the edges wear off because the high temps+boost I think the rest off the coating flyes to my IC!!
What do you think and what would dissolve the cotaing ones and for all so I could get easily bare aluminium rotors?
thank you advance
Sami
Finland
PS: not needing the extra 1-3psi since I´m doing sc+turbo setup now..turbo will take over after 3500-4000rpm.
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