set up:
jun piston 12.3:1 /87.25 bore
jun rods
jun flywheel
jun header
jun cams
jun springs/ retainers
jun cam gears
jun pcu
jun pp head and intake
aem cai
custom 2.5 exhaust bends from magnaflow, magnaflow resonator, jun ti. muffler
stock fpr but not off of prelude
this dyno is with all belts on and balance belt on(never will take off)
car made 6.8 hp with p/s belt off
waiting on skunk for intake or jg
will most likley be switching to sms header
remember this is a mustang dyno so #'s wiil be lower than dynojet 248c
what you see is what is on the car. nothing else.
stock crank and valves

 

http://www.imagestation.com/my...74011

here is the graph

the engine was built by JUN USA

 

http://www.imagestation.com/my...74011

 

if this will not work see previous post as dyno chart

 

Geeze, not that hard guys.

 

Holy crap! Thats like at least 220-230 hp on a dynojet, maybe 240. Damn!

 

nice job, you ever think of making your prelude look like the jun prelude?

 

or does it?

 

its s2k silver w/ matching 16x7 ssr type r on tanabe coilovers

 

nevermind, all sounds nice

 

http://www.imagestation.com/my...74011

 

But...whats the price?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blake &raquo;</TD></TR><TR><TD CLASS="quote">http://www.imagestation.com/my...74011</TD></TR></TABLE>
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Looks much like my Crower stage 3 dyno.

Hey does JUN sell the 87.25 12.3:1 piston off the shelf or what? It works with FRM we should have been using these a long time ago!

 

yes the pistons work on frm. they have been using them on the nsx for years. find a company who can import them. somthing fishy about the boring process cause the block had to go to japan. but im sure ther is more than a handful of machinist in the states that have bored thase frm walls before

 

another pic of the dyno chart is at the all motor forum. and it will work. much better. big...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blake &raquo;</TD></TR><TR><TD CLASS="quote">yes the pistons work on frm. they have been using them on the nsx for years. find a company who can import them. somthing fishy about the boring process cause the block had to go to japan. but im sure ther is more than a handful of machinist in the states that have bored thase frm walls before</TD></TR></TABLE>

Can you get more info on that? It's possible they redid the sleeves or put in a different liner.

 

no the sleeves are frm. i've seen them. jun usa just did not have the right equipment for boring so the blocks go to japan, i believe all of them even b series. but i am 100% positive that the sleeves are stock. remember the jun/cosworth piston expand 2 microns at 18,000 rpm in a formula 1 engine, so there is no exspansion aka piston slap. so abuse on the frm walls is same as a stock high silicon piston. jun piston is a bad nitrous piston. it is forged but still has high silicon content. works very well with frm, unlike je, weisco ect...

 

Nice numbers for all motor

 

Damn. I was just about to give in to Type S pistons, but where the hell can you get the Jun ones?

Edit :Uhh...WTF! 1200 for just pistons! F*CK that. I'll just sleeve instead.

http://www.takakaira.com/asp/t...cat=2

 

do you have a hook up on these pistons in nc? or anywhere.........ive honestly never heard of or seen and ive followed up on jun for a while.

 

better yet if you ever wanna sell your engine or jun parts, I will pickup.................

 

no i did have a real good hook up w/ jun usa but they nolonger exsist. sorry not selling

 

you guys let me know i can get jun parts for pretty good prices

 

With the 12.3:1 comp ration what kind of fuel are you running? If it's pump gas what octane rating do you get out of the pump?