new motor - how long before i can do some dyno pulls?
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Re: new motor - how long before i can do some dyno pulls? (BluByU)
That's a tough one. If you've already made your transition to synthetic oil some could argue that it's ready to go. I would like to think that I would wait till at least 5000 miles, but I'd probably give in before then.
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Re: new motor - how long before i can do some dyno pulls? (BluByU)
Well it's just me really, I like overkill. If you figure that you've already broken it in on dino oil and you've already switched it over. You're probably on your first change of synthetic oil? I like to think that I would wait until my first "real" oil change before I did any serious pounding on the motor.
Just to be safe you know, make sure everything still looks good, give it a little more time to let everything settle down. That'll give you time to correct any minor issues that might come up, like a loose rocker, etc.
Like I said, I would like to think I would wait that long. I probably wouldn't though. I've got very cheap access to a dyno just about any time I want. The dyno operator is a good freind of mine and I'm sure he'd be anxious to see the results and do some tuning etc. I'd really be lucky if I made it 500 miles.
Just to be safe you know, make sure everything still looks good, give it a little more time to let everything settle down. That'll give you time to correct any minor issues that might come up, like a loose rocker, etc.
Like I said, I would like to think I would wait that long. I probably wouldn't though. I've got very cheap access to a dyno just about any time I want. The dyno operator is a good freind of mine and I'm sure he'd be anxious to see the results and do some tuning etc. I'd really be lucky if I made it 500 miles.
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Re: new motor - how long before i can do some dyno pulls? (BluByU)
I would err on the safe side too, but i wouldnt wait 5K. Probably 3-4K for me.
Burning Brakes
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From: Cleveland OH
Re: new motor - how long before i can do some dyno pulls? (vader86)
I've got to wonder about this one. I've got my car down at MORE now for the 396 and Mike Osucha is going to burn a chip for the new engine on his dyno well before these mileage levels are met. I know that LPE offers dyno sheets with their packages as well.
I would suspect that this subject would be one that is considered highly debateable.
Ron
I would suspect that this subject would be one that is considered highly debateable.
Ron
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Re: new motor - how long before i can do some dyno pulls? (BluByU)
This is a very good thread. I have 0 miles on my new 391. Only about 20 minutes running time w/ car on jackstands + new clutch.
I thought I would dyno it immediately to get the WBO2 readings, adjust the tune and break in w/ the more correct calibrations? I didn't want to drive hundreds or thousands of miles running very lean or pig rich.
??????????
What should I do?
I thought I would dyno it immediately to get the WBO2 readings, adjust the tune and break in w/ the more correct calibrations? I didn't want to drive hundreds or thousands of miles running very lean or pig rich.
??????????
What should I do?
Pro
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Re: new motor - how long before i can do some dyno pulls? (89 Paul in Cal)
Callaway, Lingenfelter & Rippie all dyno their fresh builds so they can show you on paper what you paid for. No problems. So what are you waiting for?
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Re: new motor - how long before i can do some dyno pulls? (BluByU)
I would say you are fine to do it now... :cheers: If something goes bang you know there was something wrong.. :) Just my two cent, I think you switched over to synthetic to soon..
[Modified by Corvette0096, 6:46 AM 9/7/2003]
[Modified by Corvette0096, 6:46 AM 9/7/2003]
Burning Brakes
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From: Cleveland OH
Re: new motor - how long before i can do some dyno pulls? (89 Paul in Cal)
This is a very good thread. I have 0 miles on my new 391. Only about 20 minutes running time w/ car on jackstands + new clutch.
Good luck with your new setup.
Ron
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Re: new motor - how long before i can do some dyno pulls? (RonRed89)
3000, 4000, 5000 miles are you guys crazy as soon as its broken its ready 50-100 miles is more than enough
do you think nascar guys wait for 5000 miles come on do you think lingenfelter, billy mitchell or mallet wait 2000,3000,or more miles these cars are ready to be hammered as soon as possible jeezz if i waited 5000 miles i would be still waiting to go to the track since last year instead of putting hundruds of full power 1/4 mile passes on my car in the past 2 years since the motor was put in i am lucky i drive my car 3500 miles a year
and this car is pounded weekly look at the sig
[Modified by CORKVETTE1, 2:35 PM 9/7/2003]
do you think nascar guys wait for 5000 miles come on do you think lingenfelter, billy mitchell or mallet wait 2000,3000,or more miles these cars are ready to be hammered as soon as possible jeezz if i waited 5000 miles i would be still waiting to go to the track since last year instead of putting hundruds of full power 1/4 mile passes on my car in the past 2 years since the motor was put in i am lucky i drive my car 3500 miles a year
and this car is pounded weekly look at the sig
[Modified by CORKVETTE1, 2:35 PM 9/7/2003]
Melting Slicks
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Re: new motor - how long before i can do some dyno pulls? (CORKVETTE1)
i had to reply again i am sorry 5000 miles 5000 miles are you guys on crack or something :cheers:
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From: Somers NY
Re: new motor - how long before i can do some dyno pulls? (CORKVETTE1)
3000, 4000, 5000 miles are you guys crazy as soon as its broken its ready 50-100 miles is more than enough
do you think nascar guys wait for 5000 miles come on do you think lingenfelter, billy mitchell or mallet wait 2000,3000,or more miles these cars are ready to be hammered as soon as possible
do you think nascar guys wait for 5000 miles come on do you think lingenfelter, billy mitchell or mallet wait 2000,3000,or more miles these cars are ready to be hammered as soon as possible
Look at all the race cars, weather 1/4 mile motors, or NASCAR, etc.. they are running FULL BORE almost as soon as they are put together.
I've had many cars I've bought NEW from the dealer, from a 66 Chevelle SS396 to a 97 Camaro Z28.. & I did not dyno them, but had them on the race track with less than 1000 miles on em..
The Vette I'm now racing was on the track with 1100 miles on it, & I personally think its one of the quickest (ET) and fastest (MPH) STOCK LT1 Automatic Vettes out there..
I was at Bob Ingles shop last week, & while we were talking he said, I'll have this motor together this week, & have to dyno it .. I'm assuming its not gonna get 5000 miles break in :)
Corky.. I have a question... why do people say break it in on Dino oil, then switch to Syn. What about all the GM cars.. my 96 came with Syn. & all the LS1's come from the factory with Syn..
I dont believe GM runs all the LS1 motors on Dino, & then changes it ?
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From: Somers NY
Re: new motor - how long before i can do some dyno pulls? (CORKVETTE1)
i had to reply again i am sorry 5000 miles 5000 miles are you guys on crack or something :cheers:
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Re: new motor - how long before i can do some dyno pulls? (CORKVETTE1)
Ok, perhaps but look at the applications that you just pointed out.
Nascar that will be REBUILT after a 500 mile race.
NHRA will be REBUILT after 2 miles tops!
If you're going to have a very long life street motor it would be wise to break it in properly. My question is this:
Before you go and call everybody stupid for being cautioius, ask yourself. Question - What do I have to loose if I wait and properly break in the motor.
Answer - nothing!
Question What do I have to loose if I immediately wail on my motor?
Answer - potentially everything! What if your oil pump quits after 5 minutes? Happened to a friend of mine on his brand new motor. Had he noticed the oil pressure fall while driving around the street he could have shut it down quickly and been fine. Instead he noticed that it quit while he was turning 7000 rpm's. Now he's rebuilding it again.
Nascar that will be REBUILT after a 500 mile race.
NHRA will be REBUILT after 2 miles tops!
If you're going to have a very long life street motor it would be wise to break it in properly. My question is this:
Before you go and call everybody stupid for being cautioius, ask yourself. Question - What do I have to loose if I wait and properly break in the motor.
Answer - nothing!
Question What do I have to loose if I immediately wail on my motor?
Answer - potentially everything! What if your oil pump quits after 5 minutes? Happened to a friend of mine on his brand new motor. Had he noticed the oil pressure fall while driving around the street he could have shut it down quickly and been fine. Instead he noticed that it quit while he was turning 7000 rpm's. Now he's rebuilding it again.
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Re: new motor - how long before i can do some dyno pulls? (Nathan Plemons)
nathan that could have happened to your buddy going down the street trying to get to his 5000 mile mark and goosed it a little it can happen at any time :cheers:
