B-Man's Excellent Engine Adventures

[MRK25T]

Looks very close to what precision did when they high flowed mine.

what makes it a 500hp unit compared to the 450hp (or whatever the lower one is)?

Mark

[B-Man]

Good question Mark - I'm buggered if I know !!!

BTW - I got the intake manifold off - what a job !!!! Ahhh !

I've been having a look at how to take the head off - Looks like you have to take the cam pulleys off, (which you prolly need a puller to do) Then looks like you have to take both cams out , then undo the allen bolts under the cams - Hmmmm - might leave this job to the professionals.....

cya

[Cubes]

I would leave the cam belt & cam gears on. Turn the car over until the notches in the cam allow access to the head bolts on one side, then turn the car over again until the other cam's notches allow access to the head bolts.

Its a dodgy situation as I know the RB20DET is an interference motor and if you remove the cam belt then turn the cam there is a possibility of the valves touching the pistons.

Am I on the right track or is there another way to do it?

[red900ss]

Originally posted by B-Man

Can anyone identify this label ? ie what does it mean ?

 

...

It means it's Made in Japan by Garrett a company owned by Allied Signal.

Hope it helps B-Man.

[fatz]

working it

beer makes everything enjoyable

pete

[fatz]

good to c you have some pic of the old corroler in there

just let the poor thing rust it wants too

pete

[Cubes]

B-Man..

Could you slap a ruler across the inlet snout of the turbo and measure the diamater?

[B-Man]

Joel - 56mm inside diameter.. (oh and it's a RB25DET). Not sure about turning the engine over ATM- not much oil left in it. I spose it's rooted anyway.....

Dino - thanks Smartarse :shake:

Pete - I've done the bodgyist bog job on the Corolla. Rego in 2 weeks dude - What are we gonna do ? You gonna send me the papers or do I just dump it somehwere ? BTW, headlights permantantly on high beam after I tried to fix them, forgot to connect the horn back up so it doesn't work, steering wheel on upside down, tyres won't get thu rego - Anyone got a shotgun and I'll put it out of it's misery ! I think I'll sell it for $50 before rego expires - caviat that the new owner has to get the rego papers from Fatz. :shake:

[fatz]

m8 i have em rite here in front of me

lol

maybe i should give you my misss's number cause she might remeber to send themto you

lol

ill send em i swear

pete

[fatz]

m8 i got a new car for ya now

1990 dihatsu charade ful sik bro

[Cubes]

B-Man.. You have the 1 bar wastegate on that turbz as well don't you?

[B-Man]

Yup - that's what I was told !

[BOOSTD]

B-man: what sort of boost response did your turbo give?? would be interested to know what rpm it made 15psi. I can tell you if it makes 15psi b4 3500rpm It is a to4 S trim compressor and after 4000rpm it is a To4 Vtrim. hope that helps

[B-Man]

Well, the car is the shop now. And I went round there today to see them take the head and pistons out so we could assess the damage.

Results: 5 busted pistons - Ringlands. Bits and chunks going everywhere when the pistons were removed. (See pic).

The good news was that there was no bore damage and the bearings looked good. (But these will be replaced anyhow).

Interestingly - the timing belt that was meant to have been replaced 5000kms ago looked very similar to a worn orginial timing belt. I wonder what else we will find.

So the Block is off to get decked, prepped , painted, etc. The conrods are off to get measured, balanced, shotpeened, linished and cryo hardened. The head is off for a port and polish.

Should be on the road in a number of weeks - Yay !

[B-Man]

Oh, Boostd - as I recall , I think I was making full boost by 3300-3500. So yeah, thanks for that !

Cheers,

[Steve]

Good luck - will be better than a new one.

5 out of 6 ringlands - thats gotta be one of the better efforts around;) did you find the fault/s? have you checked the flow of the injectors yet?

[B-Man]

Injectors are being checked - if good I will sell them and replace with Sards what ever the results.

Fuel pump (044) will be tested too - If farked, new 044 goes in

Engine Munching Systems (EMS) computer is being replaced by PFC and Q45 AFM.

Tomei 256 Cams going in

Turbosmart E-Boost - Electronic Boost control

Oil Cooler, Larger baffled sump

Nismo Engine mounts

HKS 1.6 mm composite head gasket

--><-- this far from ordering a Trust plenum from Nengun

Yep - I set a record - 5 out of 6 is a pretty good effort ! !

I'm thiking new turbo now - since I'm doing everything else. How's the 3037 Steve ?

Cheers,

[Steve]

The 3037 is pretty sweet:D Cant really say too much from an alrounder package until I have done head gasket and wound up the boost (when my trust plenum gets here:D).

Summary, for a street/strip car - awesome, absolutely awesome. I cant wait to get the traction side of things sorted better though:)

To drive, boost builds alot slower than the stock turbo at first, but doesnt start alot later in the rev range - once around 8lbs comes up (a bit under 3000rpm) all hell brakes loose, just like hitting a nos button.

Goes from around 8lbs to 15 in 2-300rpm or so I guess. Bit hard to tell when you are driving. With 1.2bar dialed in its alot worse - 120odd kph in 4th, 1/4 - 1/3 throttle (what I thought was gentle accelleration) and sideways:). So, until I get this traction sorted a bit better, the boost is staying down unless there is no traffic around. It just hits sooo hard sooo quickly.

The power band is great, can stay on boost through the gears no probs - that is running a 7200 redline. Just traction that is a problem.

[R31 POWER]

Sounds like it's going to be a monster.

[GTS20X]

It's interesting that the bearings are good as the detanation also pounds the upper conrod bearing.