From: Willem-Jan Markerink To: "Bullfrog" Subject: Re: [FJ55] Mysterious cam clues Reply-to: w.j.markerink@a1.nl Date: Mon, 05 Jul 2004 20:55:37 +0200 On 5 Jul 2004 at 11:00, Bullfrog wrote: > Well, as far as the cam goes, s/s billet is a desired upgrade, > stronger than OEM, best compromise between offroad torque and highway > power is 250 deg. grind, I have a rebuilt 2F in my 40, head milled > .050 inches [1.27 mm]; cylinders bored 0394 inches [1 mm], with > Speedpro s/s billet cam [but with stock grind cause I got talked out > of the 250 deg. grind, which I think Speedpro didn't offer, Chevy > tulip style valve stems, which means better exhaust flow and you just > drill out the valve seats rather than having to replace them if they > are worn. Bumped up the pressure on the new oil pump as well. It > makes a good 40 hp more than stock, plenty of power and will git down > the highway, but I wish I had done the cam the way I planned, cause I > do a lot of highway driving... > > I have the 250 deg cam specs [compliments of Gary Breitbach] if anyone > wants them. Yes Sir, please!....:)) Will add it to my file of 2F-tuning. > Bullfrog > > and yes, I am not a V8 fan, absolutely no need to go that route to get > plenty of additional power. BTDT. Nothing beats the inherent balance & low end torque of an inline 6....only a V12 or V18 would be an alternative....;)) (a few lunatics have done that with a Range Rover, mounting a 5.3 Jaguar V12....:)) (good thing Toyota only sells a V12 limousine in Japan, to keep the temptation at bay....;)))) From: "Mike Fahey" To: Subject: Re: [FJ55] Mysterious cam clues Date: Mon, 5 Jul 2004 17:50:34 -0400 ----- Original Message ----- From: "Willem-Jan Markerink" To: "Bullfrog" Sent: Monday, July 05, 2004 2:55 PM Subject: Re: [FJ55] Mysterious cam clues > On 5 Jul 2004 at 11:00, Bullfrog wrote: > > > > > I have the 250 deg cam specs [compliments of Gary Breitbach] if anyone > > wants them. > > Yes Sir, please!....:)) > Will add it to my file of 2F-tuning. > Bye, > > Willem-Jan Markerink > > The desire to understand > is sometimes far less intelligent than > the inability to understand > > > [note: 'a-one' & 'en-el'!] Here's Gary's post...I might add that he is a very knowledgeable about cruisers and has made many useful contributions on tech issues on the LCML over the years. Bullfrog > I use mine under 4000, rarely over 3000, but my freeway driving is held at > about 3000, and it will accelerate from there. I've accidentally squawked > my 35s, once in second gear. A month ago, I pulled out from a side street > (angled in, almost straight) in second, gave a good amount of peddle, > heard a good squeal behind me, tensed up to be rear ended thinking I did not > look well enough before pulling out and some one was skidding into me. But > no one was in the rear view. Took a minute to realize it was me :-). > I have an H41 and 4:10s. I've been running this cam for about 8 years now. It > is no V8, but I have good usable power from about 200 to 4000 RPMs (when > all else is working right). > > Anyway, if you find it useful, the cam specs are as follows: > > Delta Camshaft Inc > App. Perf 250 S grind > dur int 250 dur exh 254 > int opens 17 closes 58 > exh opens 60 closes 14 > cam rise .255 l/c 108 deg. > lash int .014 exh .014 > > Gary Breitbach / KD7TGF > breitbach@attbi.com > TLCA# 6227 > '76 FJ40 > > Portland (Cedar Mill), Oregon