Lykins Motorsports 496FE Build...

[blykins]

Originally Posted by philminotti

Good grief, Brent. My cam is 248/252, .633 lift and I have little vacuum and a VERY lopey idle. That cam redefines radical street cam, IMO.

phil

Phil, for a 482, 248 at .050" is a pretty mild cam. I use similar grinds in my 482 stuff and they have a nice lope but also have good vacuum.

The cam for this one is a hoss-cat, but it needs to be to put the hp peak where we want it.

[RodKnock]

Originally Posted by blykins

Phil, for a 482, 248 at .050" is a pretty mild cam. I use similar grinds in my 482 stuff and they have a nice lope but also have good vacuum.

The cam for this one is a hoss-cat, but it needs to be to put the hp peak where we want it.

My cam is very much like Phil's (245/252, .631/.650 lift), popular middle of the road cam for a 482. I've always maintained that it's just about perfect for me, but I've always thought maybe just a touch more would have been even better.

The cam chosen for this 496 project should be nearing the radical side of the scale with almost .800 lift. What is the intended use of this engine and Cobra?

[blykins]

Originally Posted by RodKnock

My cam is very much like Phil's (245/252, .631/.650 lift), popular middle of the road cam for a 482. I've always maintained that it's just about perfect for me, but I've always thought maybe just a touch more would have been even better.

The cam chosen for this 496 project should be nearing the radical side of the scale with almost .800 lift. What is the intended use of this engine and Cobra?

Heads help a lot, Rod. A higher flowing head makes it easier for the cam to work. So if you have an existing setup, then add head flow (better flow/velocity), the engine will generally peak a little higher. May be an option for you down the road.

Your cam and Phil's cams are pretty moderate, I use those specs quite a bit for hydraulic roller 482's with CNC'd Edelbrock heads, and they generally give a 5500-6000 rpm hp peak. Should be very streetable. I did a 487 with basically stock performing Edelbrocks, used a 244/248 @ .050" cam with .620-ish lift on a 112 LSA, and the customer was very happy....had more than enough vacuum to run power brakes, etc.

The cam for this engine is .775" gross lift. You lose about .020" of that to lash, so you end up at about .750" net lift, which will work well with the cylinder heads.

The engine is going in a Cobra designed for weekend fun. Customer is very well acquainted with higher revving, higher horsepower engines, and he wanted to up the ante over his existing mill.

[cobrakiwi]

Pictures, Pictures please, this one should sound sweet!

[blykins]

Diamond pistons came today....

Only 518g, very light for a 4.310" bore.

[ERA Chas]

Do they come with DFL on the skirts or did you send out?

[blykins]

It's an option that diamond provides.

[cobrakiwi]

Nice, I need a set of those for my Shelby block.
What's the guess on HP with this one?

[blykins]

Up towards 700...

[Dimis]

Originally Posted by blykins

Up towards 700...

You can't foresee a problem with that?
Identity crisis perhaps?

[blykins]

I just build 'em.

[601HP]

Originally Posted by Dimis

You can't foresee a problem with that?
Identity crisis perhaps?

Did someone hand off the psychological profiler baton to you?

[cobrakiwi]

Wow, that's just crazy!

[rodneym]

601HP,
Your build? I noticed in your profile it says, 'No engine for a while'.
That's gonna be a sweet motor.

[601HP]

Originally Posted by rodneym

601HP,
Your build? I noticed in your profile it says, 'No engine for a while'.
That's gonna be a sweet motor.

I do have a horse in this race, as many as Brent can fabricate.

David

[rodneym]

Nice!
Shame we never got the mags going, huh?
Would've looked great with your paint scheme.

[blykins]

I knew you couldn't stay anonymous for long....

[601HP]

Originally Posted by blykins

I knew you couldn't stay anonymous for long....

Well...... I planned for it to be your prime-time show during the build of the engine. After the build, it would become my show. However, I allowed a flippant left-field comment from Oz-land to irritate me.

So Brent, it's still your show! Go make some horsepower.

David

[Dimis]

Originally Posted by 601HP

Well...... I planned for it to be your prime-time show during the build of the engine. After the build, it would become my show. However, I allowed a flippant left-field comment from Oz-land to irritate me.

So Brent, it's still your show! Go make some horsepower.

David

My sincerest apologies.
I meant no ill.

I've have your tunnel wedge K&N filter thread open on permanent view for quick referencing. I like how you've set them up.
I noticed the change in your details as per rodneym.

I put 2 & 2 together... And took a blindish stab...
Normally when I do this, I get 5... Not 4.
So I thought, rather than blatantly asking, I'd go fish...

Sorry.

FWIW - killer build!

[601HP]

Originally Posted by Dimis

My sincerest apologies.
I meant no ill.

I've have your tunnel wedge K&N filter thread open on permanent view for quick referencing. I like how you've set them up.
I noticed the change in your details as per rodneym.

I put 2 & 2 together... And took a blindish stab...
Normally when I do this, I get 5... Not 4.
So I thought, rather than blatantly asking, I'd go fish...

Sorry.

FWIW - killer build!

Dimis,
Thank you for the apology.

Regarding the build; it will be an engine I've wanted for a number of years for a number of reasons.

I remember the first time I hit WOT in my Cobra back in 1994. Although the engine dynoed at 411 horsepower, the performance was less than I anticipated. Gradually I upgraded engine parts to increase power. At the 4th cam, a roller, I found I enjoyed spinning the engine way above 6,000 rpm, and an FE at 7,000 rpm is an incredible sound. However, some of the parts I chose over the years weren't quite matched to my driving style and I had some mechanical failures. Road racing will help you find an engine's weak point. Ask me how I know.

In May of this year I found a minor mechanical issue that could have become a big problem had I not discovered it early. It was at this time I considered retirement of the existing engine and replacement with a new 'moder'. Subsequently I removed a lot of exterior engine pieces from the 20 year old engine and forwarded those to Brent for use on the new engine. I sold the old engine as a short block.

Brent was a good sounding board during my several talks with him. I've asked him to construct a 'purpose-built' engine that will handle my occasional foray into the 7,500 rpm range. I am looking forward to the new one.

I think a 496 FE needs a good exhaust so I found an excellent craftsman and now a friend, who modified my old side pipes. He installed Classic Chambered 3" i.d. powersticks. My neighbors probably won't send me Thank You notes.

David