[TPR] Hydraulic Roller cam thoughts

[Mad Dog Antenucci]

Didn't Dan built Mike Drew's engine?
Okay just kidding


________________________________
 From: David in Durango <adin at frontier.net>
To: Kirby Schrader <kirby.schrader at gmail.com>; Asa Jay Laughton <asajay at asajay.com> 
Cc: tpr at teampanteraracing.com 
Sent: Thursday, March 29, 2012 3:14 PM
Subject: Re: [TPR] Hydraulic Roller cam thoughts
 

  
Aaaaaaaarrrrrrggghhhhhhhhhhha.  Don't want to hear 
all these stories about special bushings and such.
 
Maybe I'll stick with solid rollers - the hydraulics are 
about $400 more.  then I'll need different pushrods?  It never 
ends.
 
BTW, Dan told me the 180s don't give any more 
power.  I AM aware of the pornographic powers they have . . . . 
.
----- Original Message ----- 
>From: Kirby  Schrader 
>To: Asa Jay Laughton 
>Cc: tpr at teampanteraracing.com 
>Sent: Thursday, March 29, 2012 2:39  PM
>Subject: Re: [TPR] Hydraulic Roller cam  thoughts
>
>I just went through this, but Dan is certainly more of an  expert than I. 
>
>
>When I got my Pantera back in 2009, the all iron 377 Cleveland had a  hydraulic roller in it. Decent 470 HP and 448 TQ.
>Trouble is, I was so used to the old flat tappet solid lifter cam that my  brain kept trying to wind it to 7000rpm and then hitting the rev limiter. I  wanted it to keep pulling.
>6200 was about all it was good for with the hydraulic rollers....
>
>
> I had to pull the engine for repair last year (long story, don't  ask, please) and decided I liked the rpm too much, so I went with some Comp  Cams solid rollers. They left less than .050" covering the oil galley holes,  so I had to get the lifter bores bushed. This is expensive, but good because  it allows you to put smaller oiling holes in the bushings. That way, if you do  lose a lifter, you don't lose the engine.
>
>
>I have rebuilt the previous engine (my son is going to use it in his  Pantera) and did a completely new engine for my car.
>After lots of drama and hassle it is running now, but I'm still fine  tuning the EFI. It's nice and strong though. We'll see how it goes.... Desktop  Dyno says it should do 560HP and that's not bad for an all iron Clevleand, I  think.
>
>
>I am running into the exhaust restriction now with the stock GTS mufflers  and the better cam and stuff, so a set of 180's is on order.
>
>
>It never ends....
>
>
>Bottom line: You can get lifters which WILL work in the stock Cleveland  block bores, but you need to check closely.
>And... you may need to bush them.
>
>
>FWIW,
>Kirby
>
>
>
>On Thu, Mar 29, 2012 at 14:41, Asa Jay Laughton <asajay at asajay.com> wrote:
>
>The next build I do will most likely use a mechanical  roller, though a
>>hydraulic isn't out of the question.
>>
>>The last 
    build I did used an off-the-shelf Crane hydraulic roller for
>>a 351C. 
     I think it was one of the first.  I love it actually, 
    being
>>the first one I've ever tried.  It's not very radical though 
    and I'd
>>go for more rumpety the next time.
>>
>>Dan Jones has some 
    great information regarding hydraulic rollers for
>>Clevelands.  Best 
    to give him a shout.  I might be able to dig up his
>>emails on it (I 
    tend to keep nearly everything he writes) but it could
>>be like a doomed 
    Antarctic expedition.  Pay special attention to the
>>lifters. 
     Some Hydraulic roller lifters for the Cleveland are NOT
>>good. 
     Oil hole is too high and will clear the top of the lifter 
    bore.
>> I don't think I'd even talk to a vendor until -after- I 
    talked with
>>Dan.
>>
>>Either way... mechanical or hydraulic, I think 
    you'll love the roller.
>>Asa 
    Jay
>>_______________________________________________
>>TPR mailing 
    list
>>TPR at teampanteraracing.com
>>http://lists.teampanteraracing.com/cgi-bin/mailman/listinfo/tpr
>>
>
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