ss45466's turbo IX build

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Re: ss45466 turbo IX build

Postby ss45466 » Sun Feb 27, 2011 7:24 pm

I went through the front diff today to replace seals, ect... One of the carrier bearings had some pitting, called the dealer $140 list, pelican $90, bought the race/roller bearing from rock auto for $27 shipped. :D Had to verify the p/n and actual sizes took a little time but it was worth it.

Origional P/N KLM29749 bearing, KLM29710 race.

P/N SKF LM29749 bearing $11.61
P/N SKF LM29710 race $7.38

I also found SKF BR 51 to be the kit for them, not entirely sure on this one tho so I ordered them seperate. The 3.64's will be going in with the engine here in a couple weeks.
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Re: ss45466 turbo IX build

Postby hassmaschine » Mon Feb 28, 2011 3:58 pm

nice, that's good info to have.

if I do a turbo one day I'd like to find a set of 3.73's. they're even rarer than 3.64s though, since they only came on early euro automatics..
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Re: ss45466 turbo IX build

Postby ss45466 » Tue Mar 01, 2011 4:24 pm

Chris, did you have any wear problems with the I.E. beefy rockers on your 288* cam?

VAC said they would be problematic. I don't have $1800 to buy their recommended ones. I will be using redline's break in lube. And I don't plan on revving this thing to the moon, only 6800-7000rpm. I will be using the VAC HD springs and retainers. What are your thoughts?

Cam willl be in on monday!
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Re: ss45466 turbo IX build

Postby hassmaschine » Tue Mar 01, 2011 10:42 pm

I think there were wear problems with their old billet rockers. I think they are often confused with the HD rockers. I don't see there being any problems, the guys in europe love them. ask ixer about them, they're what he's using with a Schrick 304. That's about as nasty as cams come.

revs don't really have anything to do with it either - ZDDP content does. I actually don't have them in the motor now, my 284/272 uses the OE Febi rockers (unmodified). They've taken 7500 with (new) stock valve springs just fine. I run Mobil 1 15w50.

I do have a set of HD rockers sitting in my closet for the next motor though. That one will definitely see 7500, it will be built for it. I just do it with the current motor because it can. :)

IMO, billet rockers are a waste. you could replace many sets of cast rockers with one set of billets. As long as they don't have lots of pores/holes in the casting, they should be fine. Spec racers have been x-raying M20 rockers for years to check for holes in the castings, and sending back the bad ones. I have x-rays of the IE HD rockers in the gallery somewhere, and they are BEEFY.

I'd rather spend $1800 on having somebody who really knows what they are doing port the head. I mean you could basically have anything done to the head for that kind of money, and actually have something to show for it.

x-rays here:
http://www.325ix.com/photos/index.php?d ... F11-25-09/
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Re: ss45466 turbo IX build

Postby ss45466 » Tue Mar 01, 2011 10:57 pm

Yeah I knew that the IE billet rockers were crap, they were anodized red if I remember. They quit selling them as well. I got the ones from the group buy on the tech. Thanks for the info!

I spent a little time massaging the ports, the intake side especially around the floor of the port, it had a real sharp dropoff that I smoothed out and cleaned up all the casting flash. I didn't take a ton of material off or hawg it out just made the transitions really smooth. We'll see how it does. Oh and I got this for break-in:
http://www.redlineoil.com/product.aspx?pid=121&pcid=1
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Re: ss45466 turbo IX build

Postby hassmaschine » Wed Mar 02, 2011 2:07 pm

It seems that's the best thing to do. ixer saw most of his gains I think by careful selection of the valve seat angle. There's plenty of flow, but the stock port & angles get really noisy at high lift.
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Re: ss45466 turbo IX build

Postby ss45466 » Tue Mar 08, 2011 2:59 pm

Well I got the cam in yesterday with the valve springs & retainers. Installed them and set valve lash.
I put the head on and t-belt without the head gasket, no piston to valve contact, yay! :mrgreen: I looked for some silly putty to actually check how close they are but couldn't find any last night.

Image

Yeah it's messy, but I don't want it running dry.
Image

Fabbed up a bracket for my crankcase ventilation:
Image

Tried something new for my valve cover:
Image

Also got the bearing in for the front diff, It fit perfectly! Got it back together and installed. So when I swap engines all I have to do is the rear diff, no sweat.
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Re: ss45466's turbo IX build

Postby ss45466 » Thu Mar 10, 2011 2:47 pm

Well the major work starts tomarrow once I'm off the clock. I'll be dropping it out the bottom and swapping everything over, I just need to get the head studs out first so I can get the long block done. Pics will fallow, maybe if I can a vid...
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Re: ss45466's turbo IX build

Postby hassmaschine » Thu Mar 10, 2011 11:03 pm

Does it run yet? ;)
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Re: ss45466's turbo IX build

Postby ss45466 » Fri Mar 11, 2011 2:36 pm

I wish, I'm quick but not that fast. I drove her to work this morning, knocka-knocka-knocka...Psssshhhh!

Heres my first time trying to make a video with my new phone, you can kind of hear it but it was way,way louder when cold, oh well here goes:
http://s899.photobucket.com/albums/ac19 ... 07_131.mp4
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