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Discussion Starter · #1 · (Edited)
I'm building a motor and trans from a 1999 s80 to go in my 2001
the motor/trans had 130k on it when i took it out.

Goals:
new rod bearings
all new rubber
cyl. head porting
valve lapping
turbo rebuild
trans. rebuild from triple edge.
transfer all the new stuff i have i currently have(tb, injectors, ect.)
new style oil pick up never made one for the 6
tune hilton??

275 whp

Things i need to know:
are all s80 t6 rn motors? Block is, but has ext. oil squrters
whats the bore/stroke?? 81mm/90mm
diff in valve stems, when did they go to the 6mm valve stem? mid 1999 I am using a early 99 head
how strong are the internals same p# as t5
 

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There is a link to the engine spec answers that you are looking for in my thread on VS. VS is offline right now, otherwise I'd just copy and post the info here.
When they are back online, simply search "this is my brain" for the thread... iirc, the info is somewhere on the 1st two pages.

As for the RN question, I've never seen confirmation from a reputable source - but I do have a spare T6 from a 99 S80 on an engine stand in my garage and it does have windows in the block (which is a clear indicator of a RN motor). However, the head from that 99 motor differed from that of my 2000. For example, the 99' used hydraulic lifters vs the solid lifters in my 2000; The 99' TB tensioner was hydraulic vs mechanical in the 2000; and the exhaust port of the 99' head was shrouded compared to that of the 2000 head. (see my thread on VS for pics). So my theory is that in 99' the bottom end was RN but the top-end wasn't necessarily.

According to the VIDA the T6 rods are the same part number as the T5 rods - so one can assume that the rods are good for 6/5s of 300hp that the T5s can make with a tune and supporting mods. In reality, nobody has ever bothered to find out the limits (or if they did, they didn't post the results online). With just a set of aftermarket rods, the motor has been proven to hold over 500whp by one of the fellows over on turbo-bricks.

If you're planning to keep the stock sized turbo, then I highly recommend that you invest in WI. Injecting a 50/50 mixture will reduce the effects of heat-soak and allow the ECU to run a more advanced timing curve.

You didn't mention a tune... you'll never see 275whp without one
 

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Discussion Starter · #4 · (Edited)
I got the motor down to a short block today. Everything looks clean. crosshatching in the piston liners are beautiful. the pcv system was all clogged up though
The head is an early block acording to fcp's part numbers, it does have hyd. lifters/7mm valve stems. But do these motors have the longer rods??
http://forums.turbobricks.com/showthread.php?t=40511
http://forums.turbobricks.com/showthread.php?t=127133
and does any one know which cams do what? I know that the later camshave a higher lift, but what about duration?

it looks like i can put a t5 thermostat on here, so im gonna go see if it fits
i also broke a head bolt :mad:
 

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Discussion Starter · #8 ·
I have a set of OEM pistons that are OS2 if you're looking for factory pistons.
mine look OK so far. and i would only be doing pistons if i found 6 forged 143 rods......... and i don't plan on doing that. it would be cool though.
 

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Discussion Starter · #11 ·
its been a while, sorry guys.

I've ported the cyl. head


<a href="http://s173.photobucket.com/user/donster242/media/Mobile%20Uploads/Snapchat-8743195019976195128_zpsyudzk3qg.jpg.html" target="_blank"><img src="http://i173.photobucket.com/albums/w77/donster242/Mobile%20Uploads/Snapchat-8743195019976195128_zpsyudzk3qg.jpg~original" border="0" alt=" photo Snapchat-8743195019976195128_zpsyudzk3qg.jpg"/></a>

shimmed my block


lapped valves

made oil pressure and temp adapters.

and new rod bearings.
 
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