10-20-2007, 05:37 PM
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3" Exhaust
Join Date: Apr 2007
Location: tiffin ohio
Posts: 76
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Help...Turbo Problems
so i searched around the site but i couldn't find any posts that ansured my Q. so
here is my problem i rebuilt my top end and fixed a Blown head gasket. i used arp studs and cometic MLS HG, i have oversized valves and some bolt- ons. When i put it all together i was hitting what felt like fuel cut,but was not, at 3,000 rpm so i tightend some vacuum hoed the boost leaks. I think i blew out my turbo? but why, it was at stock psi (i did install a MBC) please help. -the turbo was leaking from the feed line so i bought a new gasket and fixed it, now when i pull off the intake i notice a little oil.. please help i need it to run soon.. Thanks in advance, Nick
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My 1989 toyota supra mods:83.5 mm bore, ARP main studs, ARP rod bolts,rings, Cometic .060" headgasket, ARP head Studs, Ferra 1 mm oversized valves, port work, Rc 550cc injectors, Walbro 255hp Turbo: 1.15 A/R T4 twin Scroll turbin - journal .60 A/R compressor, Hallman Pro MBC, Turbo XS Blow-off Valve, 50mm wastegate, hks fcd Intercooler: 32x12x3 core, 3 inch piping, with clampco t-bolt clamps Exhaust:Exhaust manifold T4 twin scroll,2JZ 3 inch downpipe Fabed up to fit, Mandrell bent 3in back Last edited by Supra_87_mk3; 10-23-2007 at 04:18 AM. |
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10-29-2007, 12:14 AM
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#2 |
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3" Exhaust
Join Date: Apr 2007
Location: tiffin ohio
Posts: 76
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well thankyou for your help
 , i pulled the turbo and the shaft is bent turbo's junk.
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My 1989 toyota supra mods:83.5 mm bore, ARP main studs, ARP rod bolts,rings, Cometic .060" headgasket, ARP head Studs, Ferra 1 mm oversized valves, port work, Rc 550cc injectors, Walbro 255hp Turbo: 1.15 A/R T4 twin Scroll turbin - journal .60 A/R compressor, Hallman Pro MBC, Turbo XS Blow-off Valve, 50mm wastegate, hks fcd Intercooler: 32x12x3 core, 3 inch piping, with clampco t-bolt clamps Exhaust:Exhaust manifold T4 twin scroll,2JZ 3 inch downpipe Fabed up to fit, Mandrell bent 3in back Last edited by Supra_87_mk3; 10-30-2007 at 03:02 PM. |
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10-31-2007, 01:23 AM
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#3 |
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12psi boost
Join Date: Oct 2005
Location: georgia,usa
Posts: 338
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how did it happen?
post pictures dude... |
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11-10-2007, 07:51 AM
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#4 |
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3" Exhaust
Join Date: Apr 2007
Location: tiffin ohio
Posts: 76
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every turbo has a speed that it can spin w/o damaging it's self and if it free spins faster than that speed the shaft will flex cousing it to hit the wall of the turbo.... thus a bent shaft...i think when i was hitting what felt like fuel cut. it must have free spun...
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My 1989 toyota supra mods:83.5 mm bore, ARP main studs, ARP rod bolts,rings, Cometic .060" headgasket, ARP head Studs, Ferra 1 mm oversized valves, port work, Rc 550cc injectors, Walbro 255hp Turbo: 1.15 A/R T4 twin Scroll turbin - journal .60 A/R compressor, Hallman Pro MBC, Turbo XS Blow-off Valve, 50mm wastegate, hks fcd Intercooler: 32x12x3 core, 3 inch piping, with clampco t-bolt clamps Exhaust:Exhaust manifold T4 twin scroll,2JZ 3 inch downpipe Fabed up to fit, Mandrell bent 3in back |
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