Prawns 1380 trackday Toy: on the rollers at Slark today
Turbo Mini Forums

Just watched you video It is running way two much ignition retard swing the dizzy about 5 to 10 deg clockwise and retry

are the pops in the video from the car? i would say very retarded too

Yes i moved to the darkside

Instagram @jdm_brett

Haha, yea they are from the car! Going to check for a tight tappet tonight, advance the ignition slightly, plumb in a rad, and fire it up properly and see what happens. Will take a look at the plugs too and see if it needs richening up a tad

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

OK, got a bit more done tonight:

Being an SPi head I was using, I had to drill and tap the heater take off at no4, and also found it didn't have a water temp sender thread or hole either, so I had to drill and tap that. Was surprised how long it took to tap out the 5/8ths UNF thread for teh temp sender.



Also, figured out the crazy timming. MASSIVE schoolboy error on my part I'm afraid.

Being a civil engineer, it's logical to me that all things which turn MUST turn anti clockwise.

Of course, the dizzy doesn't!

When I setup the static timming, rather than advancing it to a static figure of 8 degrees BTDC, I mananged to retart it to 8 degrees ATDC.

What a tool I am.....

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Great to see it back up and running so soon, and good luck getting the new motor on the road its looking good, should do the job till it gets a turbo. :)

Edited by george91 on 15th Jul, 2010.

Thanks George. Going on what Paul has told me it could see up to 120bhp.....
If it makes anything over 115 I'll be very happy!

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

that altanator belt looks nearl crapped out

nice car though

belt is indeed pretty shagged Benross!

It's only a temp I threw on to get the water pump spinning though, I probably won't be driving the car on this setup at all (Dizzy and front rad), I just chucked it on to get the engine fired up so I know it's a goodun. Before it hits the road it'll be getting a nippon denso alternator, and a front mounted rad, so I'll need a shorter fan belt :)

Just plumbed in the rad and reset the timing. Eating tea now, then going to fire it up again

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

it's alive!!!

Sorted the timing out tonight, and stuck a rad on it temporarily to get it up and running before I 'Jolt it, and it's running really nicely.

Much to my surprise it's still starting really easily, and idles and revs cleanly. I ran it up to temperature tonight, but havn't yet ventured out onto the road as I'm missing a few bolts to put the front back on.

Dead chuffed all in all though!

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Prawn what head is on this engine then, another MED? 115 would be a nice figure.

also what cage have you got?

Edited by george91 on 15th Jul, 2010.

Hi George. The head on this now is a med road comp, 36x30 valves. The old head was a "full race" 37x30 med head, but that's pretty dead now!
Roll cage is annold roll centre one. Not particularly great, but it does the job!

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Nice one thanks for the reply, i was looking at there rally special head as i'm thinking of building a nice n/a motor soon.

And the cage just looked good.

Edited by george91 on 15th Jul, 2010.

Dont Bother going to MED for the Head Get Turbo Phil off this forum to do the head it will be every bit as good if not better at a much better price, Phil has done me N/A heads which have produced the goods on my engines cant Recommed him Highly Enough

+1 for Turbo Phil

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

thanks for the info guys its hard to find a company you can trust these days, so many horror stories going around. sorry for the hijack prawn. :)

well it's working. actually driving now, and I'm chuffed to bits.

Bolted the front on today, and set off for a test drive.

made it a whole 200 yards in 1st, before changing to second and it dying a complete death.
It seemed ignition related, so a quick check later showed it had no spark.

I had used an old coil I found, as I'm waiting for my megajolt to arrive so didn't fancy buying a new coil for a few days use.

Got a new coil from a friend, and it's running perfectly now.
Feels really good, I set the timing at 10 degrees at 2000rpm.

Drives well, pulls harder than the old engine for sure. I'm going with the moderately controversial hard break in method, whereby you give it a fair amount of throttle up to around 75% RPM, I'm currently taking it to about 5k RPM, although not at full throttle until I can confirm the fuelling is OK.

Really happy with it though so far, need to get the megajolt on it asap, then start work on a front mount rad setup

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Hey hey welldone !
+ 1 for the hard run-in method BTW

"So wat we gonna do tonight Brain?"
"Same thing we do evernight Pinky!"
"Try to take over the world!"

another update.....

After the success of saturdays first test run, I've taken it out again tonight, and I'm planning to take it to work tomorow to get a few more miles on it, it's a nice cross country route, so plenty of up and down through the revs.

Before I left tonight, I whipped the plugs out. On saturday, I'd not driven it TOO hard, using maybe 60-70% throttle in very short bursts, letting it rev freely between 3 and 5k.

THe plugs looked like this after the run:



All 4 looked pretty identical.

Tonight, I let it warm up fully, then took it for another blast, this time pushing it a bit more, using 80-100% throttle between 4 and 6k, only when it was able to pull cleanly (no steep hills), with one single burst up to 6500rpm in 2nd at full throttle.

The plugs now look like this:





This pic shows the pugs from 1-4, left to right. All running fairly similar.



What would you guys say about the colour? is it verging on the lean side?

my old engine ran 12:1 AFR at the top end, and the plugs were always a sooty black colour like the first pic. I knew it was rich, but it was safe!

Does it look like it's running lean, or is it fairly safe still?

No pinking to be heard, running 10 degrees advance at 2k RPM on an aldon yellow

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Oh, and I got a new toy this morning :)

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Lean to me ...

Rusty by nature

A little on the lean side,
dont worry about the advanced at 2000rpm set it to 28deg at 4000rpm and make sure its no more than 30 deg at 5000 rpm.
Are you runing octane booster this needs 98 with at least 3 ron points add to run right.

What temp's are you seeing

ah, cheers guys.

Paul, I'm running V power 99 RON currently with no addative.

it's running fairly hot too, 74 degree stat, running around 85ish when driving around, if I slow down in town it's creeping up to 90-95 with the kenlow 11'' fan running all the time. that's on a 2 core side mount rad currently. Will be getting a front rad very soon

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

I taught it might be runing a tad hot those plugs look like there tip temp is to hot are the 6es or 7s

Theyre 7's Paul.

Ran with the choke out 10mm all the way to work this morning, and it's pulling a bit cleaner, and running around 80-85 degrees. whipped the plugs out when I arrived at work and they're a bit darker again, so I think I'll keep with that for now.

One odd thing:

I've got a small oil leak from around the crank pulley area. I can't see where it's leaking from, but it's getting sprayed about by either the fan or the bottom pulley, as there's oil residue on teh underside of my top hose, and the front left corner of my bonnet inside.

Any suggestions as to what could be leaking? I've got a minispares belt drive kit on there. if oil is leaking into the belt chamber, could this be dangerous? (with regards to possible belt slip)

I've got some spare seals to go behind the cam pulleys, but I'd rather not pull it all out again!

Edited by Prawn on 20th Jul, 2010.

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Maybe it's leaning at high revs ?

Too hot a plug can make the engine run hotter maybe ?

Lean burn is much hotter for sure !

Rusty by nature