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Kirkham Motorsports

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  #1 (permalink)  
Old 11-04-2012, 07:31 PM
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Tony,
Let's try this again,
I don't know anyone who is pleased with the Roush injected engines, and very few who are pleased with any aftermarket fuel injection systems used on the street.
J
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Old 11-04-2012, 08:57 PM
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Quote:
Originally Posted by Roush #1 View Post
Tony,
Let's try this again,
I don't know anyone who is pleased with the Roush injected engines, and very few who are pleased with any aftermarket fuel injection systems used on the street.
J
I know plenty of guys who use Fast efi or Big stuff 3 programs that would never touch a carb again for street use, it seems even the bad efi setups are better than the best carbs for street...
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Old 11-05-2012, 09:24 AM
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Quote:
Originally Posted by fordracing65 View Post
I know plenty of guys who use Fast efi or Big stuff 3 programs that would never touch a carb again for street use, it seems even the bad efi setups are better than the best carbs for street...
I think there are plenty here on ClubCobra who would argue that point.

If and when an EFI system is perfected, both installation, setup, tuning, a true plug and play system, I may be a buyer. But I haven't seen anything that folks haven't complained about.

And of course, there are some that are just downright fugly and I wouldn't buy it based on aesthetics.
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Old 11-03-2012, 10:30 AM
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It would appear they are attempting to create (make public aware) of loopholes which they will attempt to dance through if a rod is not hanging out of the block? Above average oil consumption is more of an inconvenience than an out an out reliability or mechanical problem.
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Old 11-03-2012, 07:53 PM
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Quote:
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Above average oil consumption is more of an inconvenience than an out an out reliability or mechanical problem.
B.S. Oil usage is a sign that something is not right. There are many that have the same Roush motors and some use no oil and some are oil drinkers. The ones that are drinkers definitely have something wrong with them. The excuses Roush posted for new engine owners are nothing more than a way to get out of the liability for building junk. Personally, I would be embarrassed to have their valve covers on an engine.
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Old 11-03-2012, 11:34 AM
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Well, maybe their engine issues are why they are devoting so much capacity to the oil and gas industry instead of the aftermarket automotive industry these days?

Unfortunately, the last I had heard, they had scrapped 15 parts all in a row worth about $15k each in just raw material.
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Old 11-03-2012, 12:03 PM
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I've heard about issues with the 427 motor. Any reports from 402 owners? I know I'm going to jinx myself, but my 402 uses little to no oil. I change it annually and can't remember the last time I topped it off.
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Old 11-04-2012, 08:49 AM
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Originally Posted by Got the Bug View Post
I've heard about issues with the 427 motor. Any reports from 402 owners? I know I'm going to jinx myself, but my 402 uses little to no oil. I change it annually and can't remember the last time I topped it off.

same here...13k...uses very little oil...maybe 1/2 quart in between oil changes.
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Old 11-03-2012, 12:33 PM
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Oil consumption is acceptable. The mechanical failures sound expensive.

My warranty is out. I guess I have something new to worry about.

Russell
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Old 11-03-2012, 02:24 PM
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Brent,
Thanks for clarifying for the members . The Windsors, SBC and BBC's were right on your numbers at World.
Agreed about the 'race' myth.
Hope Clayton chimes in too.
Now who's torn down a new Roush and mic'd rods and mains??
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Old 11-03-2012, 03:30 PM
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My 402 goes through a quart of oil in about 2k.
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Old 11-03-2012, 04:52 PM
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I have a feeling they use really low tension rings....9-10 lbs.
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Old 11-03-2012, 05:33 PM
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Maybe a forged aluminum piston with more piston to wall, different from hyperutectic. I'm not getting it either Brent. We did run our drag engines a little on the loose side in the 80s. a little.
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Old 11-04-2012, 08:16 AM
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Quote:
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Maybe a forged aluminum piston with more piston to wall, different from hyperutectic. I'm not getting it either Brent. We did run our drag engines a little on the loose side in the 80s. a little.
Bingo!

When stating your engine uses more oil than a modern day factory car and saying you have looser tolerances, your not talking about bearing clearances. Bearings have nothing to do with oil consumption. Of course they are talking about piston clearances.

Everybody fits forged pistons with more clearance than a hyperutectic piston, because if they don't the piston will swell up (thermal expansion), stick to the cylinder wall, and jerk the top off of the piston.

Someone mentioned their cylinder walls were badly worn. It's possible that there wasn't enough clearance.

To put this warranty into perspective, my 1966 Comet Cyclone GT with 390 Hi Po (a whopping 335 Hp) said in the manual that 1 quart in 500 miles was not to be considered excessive for the 390 Hi Po engine. It used 1 quart in 1000 miles.

My 1992 Crown Vic 4.6 ltr used 2 quarts in 3000 miles early on. Ford dealer showed me in writing that it had to use 1 quart in 1000 mile or more before they would consider it defective and do anything about it. At 155K mile it was burning a quart in 500 miles.

I do not see the warranty that Roush is putting out as way out of line. However all the problems I see people on here reporting scars me away.
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Old 11-03-2012, 05:53 PM
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high oil consumption, out of spec valve guides, cracked pistons, rebuild costs, ya sure! I like spending money on parts that fail. I must call Rousch on the next busines day to order me one of those aaaaaa, what was it now?
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Old 11-03-2012, 07:20 PM
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Don't even get me started on the laundry list of failures with those of us that got the first 511's. at least 5of us in Arizona got the first batch of those motors. And I think everyone has had catastrophic failures if not total rebuilds in the first 1-5k miles
Ron
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Old 11-03-2012, 07:28 PM
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Yeah but you can get polished intakes, chromed coils, efi and black and chrome valve covers and big-ass air cleaners that say 'ROUSH' in big letters on 'em.
Takes a lot of design engineering to make that stuff. So's everybody in the parking lot can get wowed by that. That's what counts-they can see you wrote the big check.
Clearances? Ring tensions? Valve guides? Spare qt of Royal Purple in the trunk?; not to worry. You'll make it home.
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Old 11-03-2012, 07:56 PM
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I hate to spoil your impression but I could of cared less whose name was on the valve cover, I didn't know about Keith craft or kirkham at the time and I simply wanted the most horsepower I could fit under the good.

If I had to do it over I would do a kirkham but why is it everyone craps on the CSX owners about writing a check for their car but not the guys writing bigger checks for their alloy kirkhams or the $175k I am sure the super snake kirkham with twin superchargers cost?
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Old 11-03-2012, 09:24 PM
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Ok, I guess I'm one of the lucky ones only used one qt in and maybe 1/2 at the track in 17000+ miles and that was when the intake gasket went south! Not happy with the scorpion roller rockers, and by the way no cracks in them. Car has been tracked a little and not afraid of the loud pedal! Will probably blow up now! LOL

B i l l
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Old 11-04-2012, 08:36 AM
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Manufacturers always Ok high oil consumption as normal because they don't want to face recall.
I would bet that most of you with high oil consumtion do not run PCV, s ....I am really confused as to how a " new " motor can have worn out valve stems , cylinder walls etc, etc. Are these manufacturers using used parts to start with...?... Someone send me your motor to rebuild......
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