How long does a v spec last?
01-19-2010, 09:09 AM
#17
Suspended
A friend of mine who races with me, had a stock V spec that lasted 8 gal on all stock parts... but others didn't even reach the 4 gal mark.
01-19-2010, 11:20 AM
#24
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We have a local guy who claims to have 20 gallons on his VPSEC. He's relatively fast too.
We suspect it has something to do with the funny burning smell that can be detected coming from his car (real car, not buggy/truggy) between rounds.
01-19-2010, 11:48 AM
#25
11 gallons for me!
Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.
I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
01-19-2010, 12:01 PM
#26
11 gallons for me! Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.
I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
01-19-2010, 12:02 PM
#27
your nuts crazy....
Nova engines don't run hot, that's not true at all. OS engines are good engines no doubt, but anyone can fry an engine. It happens, but some will make em last some won't, If the metal pinch is bad then why do they last 8-12 gallons?
01-19-2010, 12:26 PM
#28
Your post makes alot of sense but, why would I buy a engine that I should replace the rod and bearings after break in. I have never had a bad rod with Nova after break in. I never use the stock bearings anyways. And as far as the fuel there has to be a reason 99% of the Pros run 30% or higher fuel. If you still have the higher oil content with the higher percentage why would it be better.
I have nothing against novarossi. They make great engines that last a long time, but they do have their own issues.
01-19-2010, 01:30 PM
#30
11 gallons for me! Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.
I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
Yes that's right, 11 gallons. I guess I'm lucky, or maybe it's just because I know how to tune and don't abuse my engines. I really don't buy the short lifespan BS because I have seen plenty go as long as mine did when treated right. I do admit I changed bearings to TKO ceramics and the rod to a speed rod at around 3 gallons or so. IMO that is correct procedure for ANY engine. Doing so will save you tons of $$$ in the long run. If you really expect those high wear items to live a long life you are mistaken. Theres no way the rod will survive the harsh break in period and last a long time. Steel bearings can't be expected to last at such high RPM's for a lengthy time period. Change those items after break-in and I promise you, your engines will last longer and run better.I run 20% odonnell race fuel in all of my engines. I really don't understand 30% fuel. I never once have had any lack of power running 20% fuel. It gets better runtimes and is better on your engines not to mention the price difference. The common belief is that you need 30% fuel to be competitive. That is WRONG! In fact most engines are actually designed to run 20-25% nitro.
The thing with OS engines is that they will never hold the compression that the Italian made engines will. People see that as a negative, but it really isn't. They run amazingly with very little compression and continue to get great runtime. The metal pinch that Italian engines have is terrible for them. They take forever to break in fully and are always limited in performance because of the pinch. Metal pinch creates heat and forces you to run a richer setting to keep temps under control. The richer setting required causes a big drop off in runtime and performance. OS engines never have this problem. That to me is one of the main reasons they run so well. IMO even if they last a gallon or two less, they make up for it in performance and runtime. You are also getting more "race" time on them per gallon because of the shorter break-in period and because of the longer runtime.
That's my two cents. Coming from a novarossi die hard who is now a huge OS fan...
Was it a Vspec or a Speed?