|
|
|
Dec 24, 2020 21:45:58 GMT
|
|
That's interesting now duratecs are easier and cheaper to get than zetecs, had only seen the complete bellhousings for a type 9 rather than a plate
|
| |
|
|
|
|
|
Dec 24, 2020 21:57:43 GMT
|
|
|
| |
|
|
ChasR
RR Helper
motivation
Posts: 10,189
Club RR Member Number: 170
|
duratec st150 engineChasR
@chasr
Club Retro Rides Member 170
|
Dec 25, 2020 11:16:54 GMT
|
Housing bore ovalling is a concern with ARP bolts in general. Can't do much about it with stock rods any more - there was a supplier of oversize back bearings so the rods can be resized but they don't seem to be available. Because they're cracked rods you can't just machine and hone them like usual. I take it in this instance it's best to stick with OEM if you can get away with it? I know it's easy to say for the M3 as that doesn't really suffer from rod bolt issues. Like the Duratecs, the are also fractured. I need to speak with you about the Mondeo. I may do that via PM. I'm debating changing the bearings in that, at 185k. |
| |
|
|
stealthstylz
Club Retro Rides Member
Posts: 14,829
Club RR Member Number: 174
|
duratec st150 enginestealthstylz
@stealthstylz
Club Retro Rides Member 174
|
Dec 25, 2020 13:23:06 GMT
|
|
In stock ish rev limit engines I've had no problems with OEM rod bolts. Most people who want lots more performance go to aftermarket pistons so you need aftermarket I beam rods anyway. They are less than 200 quid a set though so not too bad.
PM away that's fine.
|
| |
|
|
|
|
|
Dec 25, 2020 14:53:52 GMT
|
|
what is the rev limit of a standard engine? and what can they goto standard reliably?
|
| |
|
|
stealthstylz
Club Retro Rides Member
Posts: 14,829
Club RR Member Number: 174
|
duratec st150 enginestealthstylz
@stealthstylz
Club Retro Rides Member 174
|
Dec 25, 2020 15:42:56 GMT
|
|
I've done a couple on stock rods/bolts that run to 7450rpm and been happy. You'll be way past peak power with stock cams by that point though. Think the stock soft cut on a ST150 is 6750 from memory.
|
| |
|
|
|
|
|
Dec 25, 2020 17:38:53 GMT
|
|
ill set mine to about 7200 then ! thats fantastic!
|
| |
|
|
