rpm wont go past 4

swied · 04-17-2007, 02:56 AM

Hey guys, my buddy and I just got my 88 Supra Turbo running and moving!!! We took it out and the only problem is that once it hits 4,000 rpm it wont go no more and really bogs down, spits and sputters. What should we try and what should we fix?

IHateHacks · 04-17-2007, 01:48 PM

Ok I saw your no start post and now this one. This has happened to me once before on an 85 Monte carlo SS years ago. I had just got done putting headers on it, but forgot to tighten the nut holding the wire on the starter, car would start but only rev to 3k rpm.

Try tightening the cable that is held on by the 12mm nut on your starter and make sure the little clip connector wire is on the starter tight.

ddmcse · 04-18-2007, 01:17 AM

massive boost leak
prolly blow off one of the hoses on the accordian type 4 inch hose on the intake

White87Turbo · 05-08-2007, 02:04 AM

I agree its either a massive boost leak or you have a broken wire from one of your knock sensors.

Supra_87_mk3 · 05-08-2007, 04:34 PM

again, i have had this prob. b4 and it could also be the TPS.

04-17-2007, 02:56 AM	#1
swied Stock Join Date: Apr 2007 Location: usa Posts: 9	rpm wont go past 4 Hey guys, my buddy and I just got my 88 Supra Turbo running and moving!!! We took it out and the only problem is that once it hits 4,000 rpm it wont go no more and really bogs down, spits and sputters. What should we try and what should we fix?

04-18-2007, 01:17 AM	#3
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	massive boost leak prolly blow off one of the hoses on the accordian type 4 inch hose on the intake __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

05-08-2007, 04:34 PM	#5
Supra_87_mk3 3" Exhaust Join Date: Apr 2007 Location: tiffin ohio Posts: 76	again, i have had this prob. b4 and it could also be the TPS. __________________ 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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04-17-2007, 01:48 PM	#2
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Ok I saw your no start post and now this one. This has happened to me once before on an 85 Monte carlo SS years ago. I had just got done putting headers on it, but forgot to tighten the nut holding the wire on the starter, car would start but only rev to 3k rpm. Try tightening the cable that is held on by the 12mm nut on your starter and make sure the little clip connector wire is on the starter tight.

05-08-2007, 02:04 AM	#4
White87Turbo Intake Join Date: May 2006 Location: Lexington, KY Posts: 41	I agree its either a massive boost leak or you have a broken wire from one of your knock sensors.