Terrible performance very slow

Hi I am in desperate need of your help!!

It’s a 2jzgte Toyota supra auto now converted to manual (R154)

The Modifications Full Decat, I’m not proud but a eBay special exhaust middle and rear (which I hate) HKS fuel cut defender, blitz dump valve, front mount intercooler, electronic boost controller, induction kit and a lightened flywheel with a standard clutch with a R154 transmission.

The way it drives, after doing the conversion (which was a while ago and tbh I can’t remember it running great back then) to get the car started I had to trick it in to thinking it’s in neutral and connected the two necessary wires together (as I’m sure your aware)so whilst its stood still if i put my foot flat to the floor it will only rev up to approx. 3000 to 4000RPM unless if I press the accelerator on off on off quickly then it will redline. Accelerating say in 2nd gear first turbo is there pulling not amazing but pulling whilst whistling etc. and it will only rev up to about 5000RPM it sounds like its hitting the limiter (I think as its difficult to concentrate) the second turbo will not come online.

I’ve replaced a couple of pipes going to the solenoids (4mm internal depth pipe) in hope that there split and that hasn’t made any difference. One of my thoughts is whilst driving does the car still think it’s in neutral so its limiting the running? I hope I have put in enough info to help the situation and thanks everyone in advance for the help (alternator has also just died id thought I mention that)

I bet it's just battery and Alternator seen as it's been sat for so long

Sounds like a coil pack clip to me , but must be something to do with the trans change as thats whats been changed

I have one on the way so its certainly worth a go :-) I hope its as simple as that.

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excuse my ignorance coil pack clip?

Can get them from Whifbitz http://www.garagewhifbitz.co.uk/toyota-878.html?___SID=U

Need replacing when old as get really brittle and end up causing a Misfire.

OK thanks for you help I will try to get one sorted

I would remove the HKS FCD and see what happens if the coil connectors are OK. I would also be SURE to sort the charging issues before doing anything else.

Thought this was a piss take on NA's.

ahh thanks I will do this tomorrow and see how it goes, the alternator has been replaced and now charging which is great thanks for your help

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lol nope

ahh thanks I will do this tomorrow and see how it goes, the alternator has been replaced and now charging which is great thanks for your help

 

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lol nope

Are you still having issues m8

The charging is all sorted now thanks it's just the performance did you get back OK?

The charging is all sorted now thanks it's just the performance did you get back OK?

Yeah bud got bk ok but i think I need to check plugs glad it was that simple for the charging problem and performance wise just on the off chance have you checked your earth my old white supra had that lack of power and earth was loose [emoji106]

Ah that's good I'm pleased you got back OK and ohh I haven't which earth is it?

Ah that's good I'm pleased you got back OK and ohh I haven't which earth is it?

The one straight from the battery .. myn went bk under my battery tray

Awsom cheers will I'm going to be busy tomorrow morning lol

Awsom cheers will I'm going to be busy tomorrow morning lol

Good lol and you have a pm m8

Pm?

Pm?

I've private messaged you bud

I thought that's what you meant I haven't had a message through though?

I thought that's what you meant I haven't had a message through though?

Pm me bud I've sent you my number

It won't let me grrrr are you on Facebook?

It won't let me grrrr are you on Facebook?

No m8 txt malcom he will give you my number lol

Lol will do