[DeTomaso] efi vs Weber respondents

[asajay at asajay.com]

In my case, I used all the valve train components recommended by the  
manufacturer, based on the cam I purchased.  I selected the rocker  
arms, but kept the indicated ratio.  So I figure the reason I smacked  
a valve at 7K was the fact the valve springs aren't stiff enough to  
take it.  But that's okay, I don't want to spend much time at 6,500  
either.

As for oiling, that is a concern.  Right now I have good pressure at  
idle and freeway speeds.  At Silver State speeds, it might be  
something totally different.  I have a stock pump driven off the  
distributor gear/cam.

Asa Jay

Quoting Dave Londry <davel at emspace.com>:

> Right - It wasn't the question of getting it to breathe up to 6500,
> but what the oiling and stiffness mods are that keep it spinning up there.
> dave
>
> asajay at asajay.com wrote:
>> My last build revs beautifully to 7,000 rpm...
>> ... but tends to bend valves at that point (trust me on this, I know).
>>
>> The specs are for a max RPM of 6,500.  I do not have a rev limiter
>> built in, so I have to use my personal built in rev limiter, often
>> call a "right foot" in order to keep the r's down.
>>
>> I do -not- know how long the engine would -last- at that rpm (6,500)
>> though, so I'm not claiming to have the greatest build ever, but it
>> does got that high.
>>
>> Asa Jay
>>
>> Quoting Charles McCall <charlesmccall at gmail.com>:
>>
>>
>>> I, too, would be interested in hearing Chuck's magic recipe because it
>>> sounds like he's onto something!
>>>
>>> My two cents is that my engine will happily rev to 6500 rpm when the
>>> rev-limiter kicks in. It's a compltely different engine to any other I've
>>> had (5 different Clevelands in two different Panteras). I followed Dan
>>> Jones' recipe to the letter, and am unsure whether it is the intake (Weiand
>>> Xcelerator), the cam with its solid lifters (Compcams 282S) or what.
>>>
>>> -----Mensaje original-----
>>> De: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] En
>>> nombre de Dave Londry
>>> Enviado el: viernes, 31 de octubre de 2008 19:40
>>> Para: cengles at cox.net
>>> CC: detomaso at realbig.com
>>> Asunto: Re: [DeTomaso] efi vs Weber respondents
>>>
>>> Very nice Chuck.
>>> What mods allow the 6500 rpm?
>>> dave
>>>
>>> cengles at cox.net wrote:
>>>
>>>> Dear Will,
>>>>
>>>> You wrote:
>>>>
>>>>
>>>> "I don't even think it would look cool. The Holley TBI looks like an EFI
>>>>
>>> smog contraption typical of the EFI's available in the early 80's. Holleys
>>> look great. Carters look great. The Holley TBI doesn't look bad, but it
>>> isn't a carburetor, and it isn't an elegant looking EFI. It just looks like
>>> a wad of crap. It may run great, though. '
>>>
>>>> "If I did the Holley injection, I'd make sure it was covered with a nice
>>>>
>>> looking air filter. Then, who cares what it looks like?"
>>>
>>>> Egad. You have a gift for succinct commentary! I like it.
>>>>
>>>> Warmest regards, Chuck Engles
>>>>
>>>> PS: I have thought about the Holley EFI after Paul Rimov's comments about
>>>>
>>> EFI and Clevelands. I will equal thought to a functional and stylish air
>>> filter to cover it up should I ever take the plunge.
>>>
>>>> PSS: Newest engine just freshly dynoed with a boring ol' Holley 4150 carb
>>>>
>>> tweaked by Chuck Nuytten Carbs in Texas with iron heads, hydraulic cam and
>>> pump gas 483 HP at 6500 rpm and 436 ft-lbs of torque at 5800 rpm   
>>> with a nice
>>> torque curve. I am thrilled. Do I really need EFI? I am not sure.........
>>>
>>>> _______________________________________________
>>>>
>
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