My Engine Build

[DSMer541]

so after blowing a balance shaft bearing and throwing metal around inside my engine, i decided to tare the whole thing apart and rebuild the engine to handle more power and boost. The block is in the machine shop beeing bored and stuffed with new Wossner pistons from MapPerformance, they are 8:1 compression and just as stong as Wiseco HD pistons. Also some Eagle H-beam rods , ACL race bearings and a balance shaft delete kit from FFWD. This is just the begining as i still have the head, turbo, and tranny to upgrade. As for the head i have planned ,the ports will stay OEM size , im getting behive springs with either kelford 272 cams or Forced Performance cams,S.S valves and bronze guides, sitting on a MLS head gasket. sugestions on valves with these pistons and MLS gasket and 272 cams,do i need oversize?
Im still not sure what turbo to go with yet...i would like to be able to boost in low RPM since this is gonna be a dd with some track use. im thinkin about a 18g,20g or a T04B 50 trim....but im open to sugetions.I have a FMIC from punishment wich i guess is efficient to about 650cfm,whats the biggest turbo i can run on this intercooler? Also i know im gonna get alot of crap about this one but iv decided to keep my SAFC and logger and go with a keydiver chip instead of Link, i know there is no timing control but my compression is gonna be really close to stock and the comp ratio can be added in to chip...i dont know anything about tuning so this route will be easier, and im not gonna be switching fuels or anything so i dont think i need Link.
I should have the block back from the shop soon and will post another pic but this is what I got so far......any feedback on where to go from here? should i pick the turbo before i do the head ? or viseversa.

 

[jwcardy]

The reason I said to get the 1mm is he is planing on getting new valves to begin with. The cost is not any more, so may as well.

NOT all machine shops are equiped the same, I know a few that still use machines made back in the 1960's.
Do you think a machine design back then to mill a head or block for a SBC, will provide the finish needed for a 4G63 with a MLS headgasket?

It is good the shop you chose has a good reputation, Thats always a good start, BUT how familier are they with import blocks?
Did you ask to have the block milled for a MLS head gasket? or the head?
Did you ask if they would toque plate bore/hone your block? Not all shops have the toque plate for every engine. They are rather expensive, most start around $300.00

As far as "being sure its getting built right thats what people at the machine shops do for living"
I would not be so quick to assume that. I have been working in machine shops since 1992, I have met some that are real sharp, and some that are just idiots, but for the most part, they just go stright by the specs, witch is fine for a bone stock rebuild, BUT when you want to hop it up a bit, you have to go past the stock specs, beacuse the engine is not intended for stock use.
If you read the his parts list, Rods, good pistions, a set of cams, and a few other things, this is not a build for Moms GSX to go grab a gallon of milk.
ALso this is not at the other end of the spectrum, some 1200 40psi with a 200 shot of nitrous.
The machine shop that is doing the work has to understand what the engine is going to be used for.
With out that knowlage the machine shop will default to thinking it is just another bone stock rebuild. Some things that need to be checked will not.
You could end up with a bore finish thats a little tight for forged pistions, or a surface finsh for steel rings, and not a crome-moly.

So you have a basic understanding of machine work, Here is a good tech artical written By a DSMT Wiseman Big Woo.

http://www.dsmtuners.com/forums/articles-engine-fuel/303225-engine-machine-work-explained.html

Heres a few links I had posted on machining procudures of machine work....

http://www.dsmtuners.com/forums/new...face-4g63t-cylinder-head-mls-head-gasket.html

http://www.dsmtuners.com/forums/newbie-forum/341218-how-change-valve-guides-4g63t-head.html

http://www.dsmtuners.com/forums/newbie-forum/341288-why-have-your-valves-back-cut.html

http://www.dsmtuners.com/forums/newbie-forum/341209-4g63t-valve-spring-info.html

ha i feel like a stalker following you around reading all of your informative posts
-wes

 

[DSMer541]

Forced Perfomance do a 50 trim in BB - it's an fp3150.

Pricey - nearly as much as a 3052, but bolt on in a good housing..

It's said to match a 3052 in power to 22psi, but with better spool.


thats a nice turbo... but what about tthe one from bullseye that maperformance sells

Bullseye-Power T04B 50 Trim Bolt On Turbocharger (DSM) - Modern Automotive Performance
its alot less money and still a pretty nice turbo.

and i do plan on getting either a fp manifold or a evo III mani. and do an external w.g. off of the 02.
I still have not gotten my block back from the machine shop as i had stnd size bearings and they had to regrind my crank so i had to send them back to get new ones
i think im gonna go with manley .5mm+ valves too....would any one suggest the manely valve locks or is the stock ones fine? ill probably get the manley v.l. just for insurance.