|
|
Joined: Aug 2000
Posts: 926
Member
|
OP
Member
Joined: Aug 2000
Posts: 926 |
Do you guys think that the stock crank and rods can take the burden of 12.5:1 compression or do I need to upgrade via Esslinger??
Ben C
'97 Zetec Sport ATX
Pacific Green
Fog Light Re-wire
Many Mods
My Site
You think you can beat this?.....Well, you probably can
|
|
|
|
|
Joined: Jun 2000
Posts: 3,562
Member
|
|
Member
Joined: Jun 2000
Posts: 3,562 |
Originally posted by Sasmaster6000:
Do you guys think that the stock crank and rods can take the burden of 12.5:1 compression or do I need to upgrade via Esslinger?? I'd check with the Focus guys to see what those cranks have been taking for punishment, but generally speaking, I'd shy away from anything over 11:1, maybe 11.5:1 on a stock crank...
Brad Noon '99 SE MTX 3 point oh my God H.O. 179HP/178TQ BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!bnmotorsports@msn.com
|
|
|
|
|
Joined: May 2001
Posts: 620
Member
|
|
Member
Joined: May 2001
Posts: 620 |
Originally posted by bnoon:
I'd shy away from anything over 11:1, maybe 11.5:1 on a stock crank... Just about what my compression is... Well, if the crank breaks once I get my other mods done, now I'll know why.
96 GL Zetec ATX, white with pinstripe, nickname " Sam Smooth " mods so far: CTA intake with homemade heat shield, KVR drilled front rotors & carbon pads w/ 500° fluid planned mods: exhaust (want to keep it quiet), e-ram (awaiting installation), diablo chip involuntary mods: compression increased after head gasket failure
|
|
|
|
|
Joined: Jan 2002
Posts: 2,143
Member
|
|
Member
Joined: Jan 2002
Posts: 2,143 |
Originally posted by Sasmaster6000: Originally posted by Terry Haines:
[b]If you are considering a full teardown and rebuild with hc pistons,cams etc you will be in the market for some m/c shop work re cylinder rebore/hone,all new followers to go with new cams,maybe even solid lifters to match a hot cam,these need shim adjustment for valve clearences etc.Major engine components(pistons,cams,bearings,rings etc) are not a 'bolt on' to a stock engine.Measurements etc and m/c need to be done for the correct fit.I think you may get in too deep with this unless you have all the equipt to measure and build up a motor ...sorry but just my 2 cents
[/b]Get Terry to rebuild it all, and let him do all the work!!  I am! And yet, I have full confidence, and total ease of mind, that when I get it back, I can do whatever to it, and not worry, and be problem free for a very long time... dont know why, but I just get that feelin :p  thanx again Terry, you are too good!
'95 Tour LX ZETEC MTX TOO MANY MODS TO LIST ANYMORE!! http://www.geocities.com/marine113 Best mod ever to my tour: A Beautiful passenger seat filler, that is my Beautiful Girl!!
|
|
|
|
|
Joined: Aug 2000
Posts: 926
Member
|
|
OP
Member
Joined: Aug 2000
Posts: 926 |
Ok, say I push for 11:1 compression, how do I go about attaining it?
I know that if I install longer rods I will increase the static compression which will lower the chances of detonation (which is a very good thing at 11:1) and lower the octane requirement. To my knowledge no one makes a longer than stock rod for the Zetec, am I right?
Then again, If I do go with the JE 12.5:1 pistons I shouldnt have to worry about CR because when I get the cylinder head honed, valve and CC work done it will lower the overall compression.
Ben C
'97 Zetec Sport ATX
Pacific Green
Fog Light Re-wire
Many Mods
My Site
You think you can beat this?.....Well, you probably can
|
|
|
|
|
Joined: Jul 2001
Posts: 650
Member
|
|
Member
Joined: Jul 2001
Posts: 650 |
Ohsigmachi '96 GL MTX Zetec SS (SuperSleeper)
Suffice it to say my mod list has become so long that it is just ridiculous
|
|
|
|
|
Joined: Jun 2002
Posts: 11
Junior Member
|
|
Junior Member
Joined: Jun 2002
Posts: 11 |
if you take some you may be able to get around 225 to 240hp by doing a 3 or 5 angle valve job on the seats and maybe port and poslish the head to the gasket. You may also get away a lower compression to make power. but also think where are you driving the car.
|
|
|
|
|
