Homebuilt Rb28 Gtr33

[33GTRV]

Thought id do some welsh plugs today, got the water gallery ones, they were in stock at the local Rip Every Poor Cnut Off store, but had to order in the 22mm oil gallery plugs so waiting on them for friday i hope. Gave the thing a new lick of paint too.

Fresh paint, its like a Dulux overhaul

And the mains offered up and torqued down prior to me measuring the tunnel, It is slowly starting to come together!!

Just to change it up a bit, i got creative with the spray can today and grabbed the inlet manifold, cam covers and coil cover and gave them a lick of paint too. Good old wrinkle paint in black, never fails to look good.

Here i was gapping rings, probably the most boring excercise known to man, besides shopping with the missus...

Thats about where im at at the moment, just waiting on brad at spool to send me a crankshaft and some conrods and ill be ready to start dummying and checking clearances on bearings, endplay, crankshaft straightness ect. Hopefully i will have the head back in the first few weeks of january and then its on the blower to PFRE for some under car surge tank and extended sump fabrication and i can start doing the final assembly

[Weapon]

Coming along nicely, Should be a great streeter when completed

[33GTRV]

Hopefully! I was looking into a power figure i want to reach, but it is getting scary with the mods and sods that are adding up. I was going to try for a tough streeter with the ability to go at the goat track we call Benaraby Raceway. Seriously thought about flogging off the T78 i have in my possesion and go for a Journal Bearing Precision turbo, but im still undecided as i have had the fun linear delivery of lowmount twins and now i want the "Kick to the nuts" delivery of a big healthy single to keep me interested in the car. Well, interested enough to keep perservering with it.

Cheers, Allan

[johnbarry88]

sounds like the bundy area is getting some nice cars built. Marty will tell you the precision turbo will be a good investment, looking at one myself. Good luck with it all.

[33GTRV]

Well, got my power figure i want to reach. Mid 400 killerwasps on low, and i want to crack 500 killerwasps on high, Pump 98, thats all we have up here. I have been trying to find if the trust t78-33d's are capable of that, but havnt been able to find alot of info on it. Most of the results ive seen are all on E85

[mico]

nice mate looking good. make sure u change your valve guides

[SHOWOFFR32]

Hey mate, just wondering, is the spool crankshaft your using counter weighted or knife edged? Billet??

Cheers haha

[33GTRV]

i havnt got the crank yet but from what im told its a full counter billet steel crank. As for knife edging, not really needed if you have the correct set up

[Weapon]

I have just put a ball bearing Precision 6262 on my car and have not regretted it one bit. Strong low down response and torque on a bog stock 2.6 so a built 2.8 would be rediculous. You should go the slightly bigger 6265 i think it is to get the mid 400's

[33GTRV]

just got a msg that the crankshaft has arrived! will post pictures for those interested tonight when i get home from work

[copycutter]

Awesome car man, it's going to be great when it's done.

But how did being a mechanic all those years ago teach you how to build something specific like a worked stroker rb26?

Just to change it up a bit, i got creative with the spray can today and grabbed the inlet manifold, cam covers and coil cover and gave them a lick of paint too. Good old wrinkle paint in black, never fails to look good.

Also, how did you get this effect? Did you have to bake the paint or did you just hit it with a wrinkle paint straight from the can?

[33GTRV]

its not hard to build. its just remembering or knowing little tricks and.clearances that arent readily available to me. as for the paint, its wrinkle in a can and a heat gun

[copycutter]

Thanks for that, might give that a try on mine.

Lucky you've got the whole garage to work in and take up space - GL with it!

[33GTRV]

Well, i got the crank in, bearings all guaged up, and come up primo crank run out is spot on and the crank is straight as Measured at #4 main journal it was 0.005mm very happy with that result. The finish of the crankshaft is also good, i went over it with a fine tooth comb and couldnt fault it, bar the one niggling little thing, the oil pump drive. Its not machined into the crankshaft, its a collar on this crankshaft, but i can live with that. Also got out the scales and weighed the rods and dressed pistons, all which came up to within half a gram of each other so im also pleased about that. Now im off to dig out my internals and measure the conrod bush to pin clearances and the big end clearances If all comes up to within spec its time to clean and assemble the bottom end! Pictures will follow tomorrow morning when i wake up and get over the incoming hang over lol

[kungpow]

build looks good.

how far did you port the heads out and why did you decide to do this to the heads??

did you end up rounding off the port deviders fron that sharp finish shown in the pics??

should be an animal when done!

[mico]

imo, a collar is better. it can be made of harder steel than the crank, so the drive spots dont round off and fracture the pump.

[33GTRV]

i did round the.port.divider slightly kungpiw. i only ported the exhaust side after some online research revealed to me that the intake port design of these cylinder heads is actually quiet good. all i did was smooth out some imperfections and blend some small areas. for those interested, i weighed the two cranks and the standard crank come up at 20.21kg versus the stroker crank at 24.41kg

[33GTRV]

So....just hit a MAJOR snag. I was called by the machine shop and told to come and pick up my cylinder head. It was a pretty rude and abrupt phone call so i was worried, and with good reason. I got there and he went out the back, brought it all back in, in boxes and said "Our machinist has quit, we dont know where he was up to, he hasnt given us an installed height and we wont be completing this job, you owe us 585 dollars, pay it now or we will withold all of your items." I was not too impressed, so i have a head, half complete, half assed and nobody in this part of the world wants to go near it. I am pretty shattered. Anyone know anyone with a half decent turnaround time that would take on the job? It looks like it needs to have the installed hieght matched, needs reassembling(springs, retainers, stem seals, shims and buckets) and needs the cam clearances set. I'd do this but i dont have the equiptment to top the valves and do the height, and the shop usually assembles it as part of the deal anyway. Any help is appreciated

Cheers, Allan

[Bsa]

That totally sucks man it's a nice build good job.

[TheGotoGuy]

I have an rb in at Jacobsens engineering shop here in bundaberg, which one were you using?

They have done great work on the 803rwhp supra we built, accuracy was excellent and they did exactly as I asked and price was reasonable too.