James Z31 Engine Blueprinting

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z181200
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by z181200 »

Good for you mate. Theres an easy fix to that flatspot on the tyre though. :burnout:
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85_Z31
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by 85_Z31 »

Video's maybe tomorrow guys

Got a timing light and set timing as per FSM to 20deg BTDC

and found I was a tooth off on the dizzy , timing was like 35deg out!

No wonder it was running like a bad of assholes, idle shot up from 1000rpm to 1800rpm so I turned that back down and now she's absolutely PURRRRRRRING :D

Only its pissing down with rain and I'm not taking it out in the rain Untuned on OLD tires with average wheel alignment

Safety first guys!
The Answer to your Question is NEEDS MORE VG30
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gingofthesouth
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by gingofthesouth »

85_Z31 wrote:Video's maybe tomorrow guys

Got a timing light and set timing as per FSM to 20deg BTDC

and found I was a tooth off on the dizzy , timing was like 35deg out!

No wonder it was running like a bad of assholes, idle shot up from 1000rpm to 1800rpm so I turned that back down and now she's absolutely PURRRRRRRING :D

Only its pissing down with rain and I'm not taking it out in the rain Untuned on OLD tires with average wheel alignment

Safety first guys!
To hell with that. It deserves to perform a stationary or two outside the family home to announce its arrival, wet with old tyres etc or not!
My orangatang 510 here.
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DylPhil7
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by DylPhil7 »

haha!! Agreed
when your putting the 'cooler in are you going to keep it subtle or cut the shit out of the bumper??
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85_Z31
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by 85_Z31 »

Water to air intercooler, keep it stealty as

I will be using the Factory AC condensor as a radiator for the water as its quite big for the job and obviousy bolts in as a factory part.

I will be using a water pump from a 1997 GRP A Celica GT4 as it has a massive pump and there good value at $118

and for the Core probally a 250x250 with 3" inlet and outlet

This will keep temps down , piping short and have practically zero LAG
The Answer to your Question is NEEDS MORE VG30
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85_Z31
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by 85_Z31 »

To hell with that. It deserves to perform a stationary or two outside the family home to announce its arrival, wet with old tyres etc or not!
hahaha, Family home is shingle driveway and roads , mud and shit everywhere don't think it would work quite the same

so here is what the cooler will look like

Image

this is from another Z31 in the USA
The Answer to your Question is NEEDS MORE VG30
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85_Z31
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by 85_Z31 »

Ok stopped raining so i went for a drive from Rangioa to Brooklands and back

fuck it goes good, been waiting for this for so long.

No more bucking and farting and spitting and stalling, Temp holds steady at 80 deg
every gear boost builds quickly and you hardly squeeze the pedal and your doing 170.

Clutch needs bleeding more

Desperately needs wheel alignment, when you hit 100 this massive shudder occurs which isn't fun.

My welding the exhaust underneath the car at 11pm the night before the WOF check has a small leak so i might get that one tidied by the PRO's since its in a place where you can't actually see where the hell the MIG wire is going


but these are stupid small things easily solved.

you guys will love the sound of it, mixture of even fire v6 with the Hot cams thrown in + the sound of boost = epic

Pulls so hard, and yes it lights up pretty easy in first and 2nd ( shame its a single spinner )
The Answer to your Question is NEEDS MORE VG30
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Re: James 85 Z31 300zx - Fully Road Legal , 1st WOF since 20

Post by Bartman »

85_Z31 wrote: ( shame its a single spinner )

Thats easily enough fixed!
They don't call me the man with the rubber arm for nothing you know.............
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85_Z31
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Re: James 85 Z31 300zx - Oficially Running well & Tuned

Post by 85_Z31 »

I already have the Guts of a Short Nose R200 to put into the Long nose housing.

and I have already made up one of the two custom half shafts by swapping odds and ends of different CV's around to get the correct length.

all these "mini" projects I was sitting on are now going to come to light and finally make it onto the car.

Hah paint and bodywork is last I want LSD and Big brakes first
The Answer to your Question is NEEDS MORE VG30
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Re: James 85 Z31 300zx - Oficially Running well & Tuned

Post by Bartman »

if you need adapter bushes to make the short LSD center fit the long LSD crownwheel bolts sing out. I can hook you up.
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