Tweet
My 200 block has already been re bored to +0.5mm oversize. And now no 3 piston has part melted and scored the bore. So if I get it re bored to +1.0mm oversize woyld this be ok for around 400 bhp?? Cant really afford a new block :-(
-
New project on !! Another Cosworth coming soon!! -
I think folk with have different opinions on this. I had a 1mm overbore on an early 4x4 due to an oval bore, it ran 350ish for many years afterwards with no issues. After I sold it it was upgraded to around 440, and as far as I know (from seeing photos of it) it's still going and it looks to be on the same block. -
I had 1mm over at 580/600bhp for years with no problems until i spun a shell
sigpic
Built by my self dp motorsport 700.6bhp 520ftlb efr9180 2.4bar m.a.d mapped flat out is the only way
Comment
-
If your not happy, get it re lined back to standard bore.
Dave.
Comment
-
Nikasil liners aren't exactly cheap
sigpic
Focus Cosworth Projecthttp://www.escortrscosworth.com/foru...ad.php?t=20575
Focus RS Toyhttp://passionford.com/forum/restora...on-the-go.html
Bought and made BETTERComment
-
Originally posted by Cochyn View PostNikasil liners aren't exactly cheap
I presume Dave meant normal steel liners
Comment
-
Ah gotchya, would just assume Nikasil since most go for big power these days
sigpic
Focus Cosworth Projecthttp://www.escortrscosworth.com/foru...ad.php?t=20575
Focus RS Toyhttp://passionford.com/forum/restora...on-the-go.html
Bought and made BETTERComment
-
Sure Mark Shead does different spec liners. Might be worth a call
sigpic
MAD tuned, DP engine, 530 bhp 480 lbft, autronics, anti lag, EFR 7670,Comment
-
yes, just normal liners would do the job, even maybe just one liner in the one that's fooked to get it to 0.5 to match the others.
Dave.Comment
-
The first engine in my car was 1.0mm over size , was fine for a good few years running 400bhp , eventually the block cracked right down one of the cylinders ,
If it were me I'd fit a set of liners and bring back to std size
Sent from my iPhone using TapatalkComment
-
Exsactly what i saidOriginally posted by dan400 View Postsigpic
Built by my self dp motorsport 700.6bhp 520ftlb efr9180 2.4bar m.a.d mapped flat out is the only wayComment
-
Liner back to standard boreComment
-
Rough cost to drop liners in?
Sent from my iPhone using TapatalkComment
-
Just got a price for adam at £650 to do all fourOriginally posted by Joe-Tait View Postsigpic
Built by my self dp motorsport 700.6bhp 520ftlb efr9180 2.4bar m.a.d mapped flat out is the only wayComment
Comment