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Search: Posts Made By: mountainmotor
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Forum: C6 Corvette General Discussion
10-12-2006, 01:23 PM
Replies: 3
Views: 874
Posted By mountainmotor

GM4718M is a high temp spec thats getting quite...

GM4718M is a high temp spec thats getting quite dated , in that quite a few mere mortal group III based oil synthetics can make the cut and meet it these days .

When the spec was first conceived...
Forum: C6 Tech/Performance
10-12-2006, 12:59 PM
Replies: 9
Views: 2,723
Posted By mountainmotor

Can anyone post the timing event numbers for both...

Can anyone post the timing event numbers for both intake and exhaust for the topic cam ?
Forum: C3 Tech/Performance
07-14-2006, 09:29 AM
Replies: 17
Views: 600
Posted By mountainmotor

1-MORTOY , Both of your 82 models would be...

1-MORTOY ,

Both of your 82 models would be prime candidates for switching to synthetic . Cars with carbs on top often dillute the oil with fuel unlike most of the fuel injected engines that are...
Forum: C3 Tech/Performance
03-06-2006, 09:52 AM
Replies: 3
Views: 358
Posted By mountainmotor

Please post the list number for the carb along...

Please post the list number for the carb along with intake manifold being used .

I recall that there were three different square bore 650's made through the years . Each used different metering...
Forum: C3 Tech/Performance
03-06-2006, 09:34 AM
Replies: 1
Views: 306
Posted By mountainmotor

Not enough info there . What brand and grind...

Not enough info there .

What brand and grind number , rear gear ratio and engine compression and intake manifold and which 650 carb ?

Not only could that cam be single or dual pattern with...
Forum: C3 Tech/Performance
03-05-2006, 08:48 AM
Replies: 36
Views: 3,211
Posted By mountainmotor

Goodness , I had the hardest time finding...

Goodness ,

I had the hardest time finding this thread . Getting old I guess :)

VETEMANIAC ,

Please check your PM box and tell me what you think then we can discuss options here .

I...
Forum: C3 Tech/Performance
03-05-2006, 06:53 AM
Replies: 10
Views: 514
Posted By mountainmotor

Just something to think about is that on the Rat...

Just something to think about is that on the Rat motors two of the head bolts on each head and at the ends up high and under the valve cover are a different length than the others .

If you have a...
Forum: C3 Tech/Performance
03-04-2006, 02:00 PM
Replies: 34
Views: 2,401
Posted By mountainmotor

Hi Paul , the person was incorrect in his...

Hi Paul , the person was incorrect in his statement . Did you see the 3w-30 and 5w-30 Synergyn oils plus the 5w-40 Redline I listed ? Huge amounts of phos/zinc in those .

Here's another example ....
Forum: C3 Tech/Performance
03-04-2006, 08:49 AM
Replies: 39
Views: 2,253
Posted By mountainmotor

Thanks ! I just have been playing with my...

Thanks ! I just have been playing with my motorcycles and horses but Corvettes remain very dear to me .

Corvette ......... that name is iconic :flag:
Forum: C3 Tech/Performance
03-04-2006, 08:36 AM
Replies: 34
Views: 2,401
Posted By mountainmotor

You bet ! With Redline whats lost in total...

You bet ! With Redline whats lost in total zinc/phos amount in their 5w-30 10w-30 and 10w-40 is made up by the ester base oil they use , boron and the oil soluable moly . Myoilshopdotcom is a great...
Forum: C3 Tech/Performance
03-04-2006, 08:21 AM
Replies: 15
Views: 622
Posted By mountainmotor

Are you using PC type seals ? If so , you...

Are you using PC type seals ?

If so , you might want to think about using Clay Smiths dual interference fit springs set at 1.900 . Seat pressure of around 120 after the the springs take their...
Forum: C3 Tech/Performance
03-04-2006, 07:21 AM
Replies: 34
Views: 2,401
Posted By mountainmotor

Last post for awhile . These are current and I'm...

Last post for awhile . These are current and I'm only listing effective anti-wear additives .

Shell Rotella 15w-40

Phos 1101
Zinc 1210 - big whoop ;)

Mystic 15w-40

Moly 130
Forum: C3 Tech/Performance
03-04-2006, 06:51 AM
Replies: 34
Views: 2,401
Posted By mountainmotor

See what I mean ? If true , actual people from a...

See what I mean ? If true , actual people from a cam company seem totally clueless .

Not only are there more brands and better viscosity choices , try running that thick goo in a hotrod OHC Honda...
Forum: C3 Tech/Performance
03-04-2006, 06:34 AM
Replies: 43
Views: 1,511
Posted By mountainmotor

Thats debatable depending on usage , trans type...

Thats debatable depending on usage , trans type and rear gear .

That set-up does work very well in 355ci engines w/ 4spd and 3.55 gear , 10.08:1 with a cam as small as the older single pattern...
Forum: C3 Tech/Performance
03-04-2006, 06:16 AM
Replies: 39
Views: 2,253
Posted By mountainmotor

For a street rod it's a anything goes type deal ....

For a street rod it's a anything goes type deal . It don't have to pick up alot of power as long as it don't kill off a bunch :lol:

Sometimes really bitchin can outweigh really fast .

Is this...
Forum: C3 Tech/Performance
03-04-2006, 06:02 AM
Replies: 34
Views: 2,401
Posted By mountainmotor

The API and or ISLAC upped the average cam and...

The API and or ISLAC upped the average cam and lifter wear allowance of the GM dyno mule engine from 20 μm maximum for the SL 30wts to 60 μm maximum for the SM-GF-4 30wts .

Sequence IIIF...
Forum: C3 Tech/Performance
03-04-2006, 05:33 AM
Replies: 34
Views: 2,401
Posted By mountainmotor

Hi Bob . The oil list there is already outdated ....

Hi Bob . The oil list there is already outdated . Yep , things can happen quick in that oil industry to include that the Mobil Extended Performance 30wts have been reformulated , thanks to Katrina so...
Forum: C5 Tech
01-11-2006, 05:09 PM
Replies: 22
Views: 1,405
Posted By mountainmotor

I googled and came up with this for Autozone...

I googled and came up with this for Autozone which carries the Mobil 0w-40

Autozone: Raleigh - 4.9 miles NE - 3524 Capital Blvd, Raleigh, 27604 - (919) 876-1670
Autozone: Raleigh - 1.8 miles E...
Forum: C3 Tech/Performance
01-11-2006, 10:21 AM
Replies: 39
Views: 2,790
Posted By mountainmotor

I had these oils tested a while back so I thought...

I had these oils tested a while back so I thought I'd post for comparisons sakes .

Citgo Ultra Life HM Oil - this oil does not have an API donut on the bottle so it's not capped in amounts of phos...
Forum: C3 Tech/Performance
01-11-2006, 10:07 AM
Replies: 39
Views: 2,790
Posted By mountainmotor

The Valvoline VR1 has the potential to out...

The Valvoline VR1 has the potential to out perform the Rotella diesel oil only because it has additional friction modifiers . Both oils are pretty thick for most uses especially when cold .

Take...
Forum: C3 Tech/Performance
01-10-2006, 10:48 AM
Replies: 10
Views: 7,116
Posted By mountainmotor

There are two 650's , the one w/o a power valve...

There are two 650's , the one w/o a power valve in the rear metering block will jet larger in the secondary to make up for it . Find out what you have and post .

Probably will need a 6.5 power...
Forum: C3 General
01-10-2006, 10:31 AM
Replies: 73
Views: 4,292
Posted By mountainmotor

Kowalski on a Prozac / Zanex cocktail driving in...

Kowalski on a Prozac / Zanex cocktail driving in the right lane at 50mph .

Here's another link for the new Camaro .

http://www.chevrolet.com/performance/
Forum: C3 Tech/Performance
01-10-2006, 09:41 AM
Replies: 39
Views: 2,790
Posted By mountainmotor

It is not zinc that worries the EPA in terms of...

It is not zinc that worries the EPA in terms of emission systems longetivety . It is the phosforus .

API SL GF-3 30wts had the phos capped at .09% by weight which was around 1000ppm when looking...
Forum: C3 Tech/Performance
10-31-2005, 11:13 AM
Replies: 13
Views: 1,147
Posted By mountainmotor

If you buying a new crank , I'd build a 383 for...

If you buying a new crank , I'd build a 383 for the money . At the mild HP your wanting these Speedpro's will hold up .

Look here for other piston selections . Click applications , then Speedpro...
Forum: C3 Tech/Performance
10-31-2005, 10:59 AM
Replies: 17
Views: 672
Posted By mountainmotor

Don't worry about trying to obtain that piston...

Don't worry about trying to obtain that piston w/o the skirt coating .

Swaintech only coats the piston skirts with a exact or similar coating and applies the ceramic thermal barrier to the piston...
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