i have an 87 supra(list of mods are on my profile). Whenever i floor it the car goes great for a sec, then starts to accelerate slowly and sputter for alil bit then boost kicks in and pins me 2 the seat. never did that b4. i am thinkin it could b fuel possibly? i have an hks fcd and its set on 3. should it b somewhere else? thanx guys
Supra falls on its face when floored.
- Thread starter SupraDuD3
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Have you checked your plugs and plug wires? Is the timing at stock (10* BTDC)? Have you tried taking off/bypassing the FCD? It's more likely an ignition problem than a fuel problem unless you've got some injector issues.
it looks like bad plugs. my supra did that at the track. i changed the plugs and it was all fixed.
theres a guy selling greddy FCD, or you can buy a hks fcd.
but if your stock then i wouldnt both unless you have the right supporting mods/piggyback/
but if your stock then i wouldnt both unless you have the right supporting mods/piggyback/
i already bought the hks fcd and replaced the wires 2day. they worked great for alil bit but now its worse. almost like a fuel cut feel... boost gauge will bobble up and down between 14 and 5lbs... and car jerks a few times for a second then gets full boost. my friend told me wastegate is sticking. :1zhelp: lol
Lots of members get kind of pissed when you dont research. Not trying to be a dick but its the truth, try and find out somethings besides asking what to do. What mod do you currently have?
SupraDuD3;1502237 said:
yeah its best to remove it if you dont have fuel/piggyback, with it your running a risk of blowing up your motor. cause you wont have anything to control the fuel/ and other things that are a key in adding boost. anything above stock boost you will need to get supporting add ons.
example.
550cc injecters, lex maf, safc1/2, fuel pump, exhaust,
kamikazemkiii;1502280 said:
+1, there is plenty of info in this forum that will help you with this problem.
please add your mods
ya srry i just get freaked out and the first thing i think of it posting my prob instead of looking around so thats my fault and i understand ur not tryin 2 b a dick it really is the truth. my current mods are:
built motor, bored .40", valve job, je pistons, stock rods and head, polished crank, mishimoto FMIC, 2.5 IC pipe, FCD, HKS BOV, 3" full exhaust out an RS*R catback, rear strut bar, turbo timer, short shifter, no EGR, ngk plugs and wires, Stock CT26, shimmed wastegate at 10lbs.
I have ALL the fuel upgrades in my trunk, 550cc injectors, fuel reg, lexi AFM, fuel pump, Apexi safc 1. now i just need the weather 2 get warmer and either i or a local shop will install it.
built motor, bored .40", valve job, je pistons, stock rods and head, polished crank, mishimoto FMIC, 2.5 IC pipe, FCD, HKS BOV, 3" full exhaust out an RS*R catback, rear strut bar, turbo timer, short shifter, no EGR, ngk plugs and wires, Stock CT26, shimmed wastegate at 10lbs.
I have ALL the fuel upgrades in my trunk, 550cc injectors, fuel reg, lexi AFM, fuel pump, Apexi safc 1. now i just need the weather 2 get warmer and either i or a local shop will install it.
Fuel cut is their for a reason, it protects the engine. Not having the EGR is bad i cant think of why off the top of my head though, others will be able to tho.
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