Kent FR30 Cam and valve springs.
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From: Conor on 4 Nov 2006 09:14 Just got a FR30 cam for my Pinto I'm building up for the Capper. Decided to go with it as it's primarily a torquey cam rather than BHP and there's a lot of hills where I mainly drive so torque is a bit more important as BHP . As well as that, the powerband is from 1000-6000 RPM which is ideal as I'm not building a 9000RPM screamer and I need it to be a daily driver. Got just over 11mm lift which is nearly twice the standard. Do you reckon I'll get away with standard valve springs or am I looking at a set of doubles? -- Conor I'm really a nice guy. If I had friends, they would tell you. Earn commission on online purchases, £2.50 just for signing up: http://www.TopCashBack.co.uk/Conor/ref/index.htm
From: Iridium on 4 Nov 2006 09:17 "Conor" <conor.turton(a)gmail.com> wrote in message news:MPG.1fb6b08de44157b1989caa(a)news.individual.net... Just got a FR30 cam for my Pinto I'm building up for the Capper. Decided to go with it as it's primarily a torquey cam rather than BHP and there's a lot of hills where I mainly drive so torque is a bit more important as BHP . As well as that, the powerband is from 1000-6000 RPM which is ideal as I'm not building a 9000RPM screamer and I need it to be a daily driver. Got just over 11mm lift which is nearly twice the standard. Do you reckon I'll get away with standard valve springs or am I looking at a set of doubles? -- Conor I'm really a nice guy. If I had friends, they would tell you. Earn commission on online purchases, ?2.50 just for signing up: http://www.TopCashBack.co.uk/Conor/ref/index.htm Bet you are going to use std valves and not bother to check spring and piston/valve clearanaces either! k
From: Bob Sherunckle on 4 Nov 2006 09:24 "Conor" <conor.turton(a)gmail.com> wrote in message news:MPG.1fb6b08de44157b1989caa(a)news.individual.net... Just got a FR30 cam for my Pinto I'm building up for the Capper. Decided to go with it as it's primarily a torquey cam rather than BHP and there's a lot of hills where I mainly drive so torque is a bit more important as BHP . As well as that, the powerband is from 1000-6000 RPM which is ideal as I'm not building a 9000RPM screamer and I need it to be a daily driver. Got just over 11mm lift which is nearly twice the standard. Do you reckon I'll get away with standard valve springs or am I looking at a set of doubles? -- Conor I'm really a nice guy. If I had friends, they would tell you. Earn commission on online purchases, ?2.50 just for signing up: http://www.TopCashBack.co.uk/Conor/ref/index.htm Well you're not looking for mega revs, so that's part of the deal for a start off. Second issue would be the actual cam profile and how aggresive the ramps are. Mega lift is good, but if it's a torquey cam rather than a screamer then it may be a bit more forgiving in that respect. What about installed valve length versus spring length. i.e. with virtually twice the lift of standard, are you likely to encounter spring binding at all. (Right enough you're talking about valve lift rather than lift measured at the cam lobe.) Gotta love Pinto valvetrain gemoetry. I think you have to check both issues before prpgressing - double versus single springs / spring binding possibility.
From: Conor on 4 Nov 2006 09:38 In article <454ca0f8(a)212.67.96.135>, Iridium says... > > Bet you are going to use std valves and not bother to check spring and > piston/valve clearanaces either! > I'm going to be using an Injection head from a Sierra and am going to use standard valves. It's not going to be a mega power motor. As for spring and valve to piston clearances, I thought I'd just whack the whole lot together, fire it up and run straight up to the redline. It's not like I've built engines before. -- Conor I'm really a nice guy. If I had friends, they would tell you. Earn commission on online purchases, £2.50 just for signing up: http://www.TopCashBack.co.uk/Conor/ref/index.htm
From: Conor on 4 Nov 2006 09:43
In article <oNOdnVZ-fZ4lP9HYnZ2dnUVZ8sqdnZ2d(a)bt.com>, Bob Sherunckle says... > > Gotta love Pinto valvetrain gemoetry. Aye. Got to keep a close eye on the angle those finger followers are at. > I think you have to check both issues before prpgressing - double versus > single springs / spring binding possibility. Going to try it on the bench with the originals in first and see what happens. Might just say sod it and splash out for some Kent ones anyway. -- Conor I'm really a nice guy. If I had friends, they would tell you. Earn commission on online purchases, ?2.50 just for signing up: http://www.TopCashBack.co.uk/Conor/ref/index.htm |