Board logo

Zetec Rev Limit
Surrey Dave - 27/10/05 at 10:17 AM

What is the safe rev limit for a Zetec with standard big end bolts?

What is the safe rev limit for a Zetec with arp/raceline big end bolts?

theconrodkid - 27/10/05 at 11:48 AM

just rev it till it goes bang then back off a tad

stevebubs - 27/10/05 at 12:46 PM

Got mine set to 7k with std bolts

Stephen

givemethebighammer - 27/10/05 at 10:13 PM

Mine's set to 7200rpm on ARP bolts. I have been told it will go to 8000rpm on these, however when the engine makes peak BHP at 6800rpm its all a bit pointless really. I only fitted the bolts to protect the engine in the event of a missed downshift.

Just to add I think the 2.0L mondeo limit is set to 7200 rpm (info from Raceline)

[Edited on 27/10/05 by givemethebighammer]

stevebubs - 27/10/05 at 10:52 PM

quote:
Originally posted by givemethebighammer
Mine's set to 7200rpm on ARP bolts. I have been told it will go to 8000rpm on these, however when the engine makes peak BHP at 6800rpm its all a bit pointless really. I only fitted the bolts to protect the engine in the event of a missed downshift.

Just to add I think the 2.0L mondeo limit is set to 7200 rpm (info from Raceline)

[Edited on 27/10/05 by givemethebighammer]


Hammer, are you still on standard cams?

givemethebighammer - 28/10/05 at 10:05 PM

Yup, standard cams, and yes before you asked I remembered the dyno figure wrong it's peak BHP at 6300 rpm. which makes the point about being able to rev the engine to 8000 rpm even more valid. Many people run the standard bolts. I only changed them because the sump had to come off to change the front crankshaft oil seal, so I took the opportunity to fit the Northbridge bolts, these are like ARP but stronger (allegedly) and cheaper - £56 per zetec set.

http://www.northbridgemotorsport.com/