Anyone done it..
looks quiet simple and makes sense.. especially with b20
care to share the experience:thumbsup:
Printable View
Anyone done it..
looks quiet simple and makes sense.. especially with b20
care to share the experience:thumbsup:
yes and a many b20 powered touring cars run a method similar to posting. In fact the last generation of mugen b20a uses a similar method
it seems so simple....... hoping to do it with my next build...Quote:
Originally Posted by pornstar
People seem to do it to mainly race cars.. any con's for having it on street cars... like coolant leaks, warping sleeves etcetc
its made to prevent sleeve warping :eek:Quote:
Originally Posted by BlitZ
refer to this thread for a B20 build up and abit of info on posting
http://www.theoldone.com/articles/badtothebone/
Quote:
Originally Posted by bennjamin
it will be fine on a race car where it will be built, dynoed and almost raced immediately but for a motor which will see 150,000kms would it be fine..
Its more of a question of would the force of the thread to sleeve change over time (100,000kms)..
would i start gettting clearence on it after 30,000kms.. (then it would be worthless) or could it expand and warp a sleeve
what is block posting
Yes, we used to do it on the B20A based MF204B Formula 3 engines. We tried two ways, one was welding around the top of the bore to the outer block casting and the other was drilling and tapping down between the sleeve and block casting, then inserting an aluminum bolt and machining it all flat.
Worked great for high comp atmo engines running coolish temps (F3 ran 16:1 and at 55C from memory) but I don't know how round the bore would be under big boost and high temps.
i was talking to dynodave about this a while back, he didn't seem to like the idea -citing heat spots as an issue.Quote:
Originally Posted by BlitZ
block posting has been done for many years, heavliy used in nascar.
i have done it with no drama's, its way better than block gauard, and advise dynodave that you dont get heat spots, if he hasnt ever done it he wont know. my 2 cents
Endyn's product description: http://www.theoldone.com/components/..._post_kits.htmQuote:
Originally Posted by weeman
Googled: http://www.homemadeturbo.com/tech_pr...block_posting/
http://www.muller.net/sonny/crx/engine/posted.html
Enjoy!
So, what your saying is that whatever works on a Nascar V8, is automatically going to work on a b-series I4?Quote:
Originally Posted by pwr2w8
True, and same can be said about block guards.Quote:
Originally Posted by ProECU
Even proof is sometimes confusing with some guys running 20psi through a block guarded block all day long and beating on their cars for 100,000kms+ with no probs - and then you got the guys who are running a mild tuned N/A setup that blame their engine failure on the block guard....
I really think that - like block guards - posting is something that you gotta do right in order for it to work correctly and not screw your block.