My C33 Laurel

[DannyC33]

well laurels been running nicely for a week now. done just over 100ks (i live extremely close to my work haha)

and its gettin tuned tomorrow morning. cant freaking wait to see the results!

[DannyC33]

well friday was a little dissapointing.

ran into a few issues on the dyno.

vct controller was turning on and registered rpm, but it wasnt actually doing anything. next problem was that the tps wasnt getting a signal either. apparently these two problems are linked. the way the 25 has been wired, i apparently missed the part that said i needed to power a wire from the ecu that gives power to the vct solenoid and tps. so i will be fixing that during the week.

next problem and a bigger one is that the bee*r rev limiter isnt letting the engine rev past 6000rpm.

unfortunately they ran outta time to disconnect the bee*r and fix the vct/tps and so the tune has only been partly done, and will require a little touch up once these things have been fixed.

having said that, it made 201.9rwkw on 14.5psi limited to 6krpm.

[DannyC33]

and we have game over....

finally decided to do a compression test on the 25 to see if it would tell me why the cars a pig to start cold, random idles on 5 cylinders (but will rev and drive on 6) and why from time to time itll just blow a massive cloud of blue smoke as i pull up to a set of lights/stop (never does it driving or under boost).

so compression test results returned this

cold

80

80

110

120

80

120

warm

140

120

145

145

100

135

i wasnt to worried till i got to number 5 on the warm test.

put a little oil in the bore to see if itd bring compression up a bit but it still only read 100psi.

so im assuming rings are real happy in general but somethin else. maybe head gasket/head is the cause of the low readings on 2 and especially 5.

[DannyC33]

got bored.

decided i should paint my wheels.

original

first idea

final product

plastidip is amazing shit. so easy to work with.

[DannyC33]

have neglected this thread as much as the laurel lately.

after the comp test i got a leak down test done on it.

which confirmed the valves are f**ked in number 5. 75% leak trough the exhaust valves.

ive since sold my statesman and bought an r31 as a daily.

so the money from the statesman is gettin dumped on the laurel.

have bought a recon head for it. and this weekend ill hopefully find the motivation to pull the engine out.

then its time to pull it down. measure up and buy parts.

will be gettin forged pistons and new bearings and as i got the recon head for half the price of havin mine done ill likely slap some pon cams in it also.

[DannyC33]

Well I just bought a new engine. Picking it up next week.

Recon head. New bearings. Waterpump. Timing belt.

Which means ill have a series 2 rb25 long block for sale with a spare recon head. Paid $600for the head on sunday... found the full motor yesturday. Always the way. Haha

[DannyC33]

Picking up new engine on thursday night.

Picking up some 850cc denso injectors tonight. And have got a tomei fpr and top feed rail ordered from fleabay.

Gonna run it on e85 this time.

Just need to get manifold gaskets and studs. And then start swinging them spanners again. Eta 2 weeks.

[RBC33]

Should make bulk power for skids on e85

[DannyC33]

Its goin to be very mildly tuned to start with. Goin from 180rwkw rb20. Ill be more then happy with a measly 220rwkw for now. Need to try and prolong the life of the rb20 box till I can afford an rb25 box and tail shaft

[DannyC33]

Picked up my recon long block last night.

Time to start the tear down of the laurel.

[DannyC33]

engine came out on thursday night.

stripped down the block friday night.

spent saturday morning fitting the exhaust side to the new block, then attempted to fit my top feed injectors and fuel rail to my inlet manifold.....

....thats where everything went to shit.

the rail doesnt fit. at all.

was going to make up some brackets to make it fit, but then I found a greddy copy front facing plenum on gumtree for $200 so grabbed that today.

I know they aren't the best things in the world, but this ones been cleaned up and faced so should be all sweet.

[RBC33]

I made the exact same mistake dude. Apparently there are sime rails made that fit the stock holes with top feeds. Might lose a bit of midrange with the freddy but f**k it. Looks sexy haha

[DannyC33]

haha yeah as far i was aware they were all made to fit stock manifold....

but thats right. will look sexy and lets face it, the stock manifold and piping isnt exactly the nicest thing to look at.

as for the loss in midrange, im sure i wont even notice it. coming from a 20. everything gonna feel torquey as hell haha.

and for a "freddy" manifold it looks pretty good, to be honest.

[RBC33]

Is it one of the raw look or polished look ones. im spewing, didnt realise we had a sand blasting cabinet at work or I would of blasted mine and painted it black

[DannyC33]

Mines raw finished. And yeah im gonna be painting it satin black.

[RBC33]

Lucky I wish mine was raw. Check all your threads aswell before you go bolting it on. Mine had a few dodgy threads which I just ran a tap through. Will be a pain to get to some when its on. And if you have access to one, die grind the water jackets out a bit bigger, to match your gasket, same with your ports. I through my gasket on mine and got a paint pen to mark out the overlap and just ground it out and smoothed it so it matched the ports. Wasnt much to come off but may aswell.

[DannyC33]

Yeah mine has already had the ports cleaned up. And its been fitted to another engine. But im gonna check it before install

[DannyC33]

so manifold is on,

bypassed the heater as the core leaks and the oil warmer.

next problem. is that my injectors dont fit my rail because its so badly made that the ports the injectors fit into are different depths ranging from 8.4m to 11.9mm.

so gotta get another rail,

and i have to do somethin about the dowel thats in my crank. for some reason my flywheel doesn't have the hole to accept said dowel..

anyways. no one really reads this crap, so here's some pictures

[RBC33]

Oh man id piss that oil warmer off. If it shits itself youll get water and oil mixing... just get an rb30 stud for like 9 bucks from nissan and filter goes straight on or better yet oil cooler and relocation plate

[DannyC33]

I've bypassed it. So no water can get to it anyway.