do i need to tune engine every run?help!!

CHARLYROXS411 · #1 09-01-2005, 12:19 AM

hello i think the title is self explenatory.i want to know,i have heard that you do and stuff.ooohhh yeah i have a revo.if i do can someone tell me how to do it.please help,usally went i post a thread i never get responses.

please help!
peace out
email me at charlyroxs411@yahoo.com
i run blue thunder 20%

Krasi_5000 · #2 09-01-2005, 12:47 AM

you dont have to always tune the engine every run. Usually if the weather is the same as in humidity, temp, and pressure are the same or similar you wont have to do anything but drive. Sometimes if weather is different or you are switching fuels you WILL have to.
Sometimes i run for a month without retuning, sometimes you have to retune same day as it warms up.

So you DO have to retune but usually not everyrun.

quicklimegirl · #3 09-01-2005, 01:42 AM

many 2.5s are too touchy by defect.

savagepicco26 · #4 09-01-2005, 03:51 AM

unless the temperature and humidity outside are the exact same everytime you run, yes you'll have to retune. ESPECIALLY with the traxxas motor. i've got a revo too and that motor is the most finicky motor i've ever tuned. big PITA!!!

MaxxThrasher · #5 09-01-2005, 09:33 AM

Quote:

Originally Posted by Krasi_5000

you dont have to always tune the engine every run. Usually if the weather is the same as in humidity, temp, and pressure are the same or similar you wont have to do anything but drive. Sometimes if weather is different or you are switching fuels you WILL have to.
Sometimes i run for a month without retuning, sometimes you have to retune same day as it warms up.

So you DO have to retune but usually not everyrun.

Just curious as to what engine your running?

RCRevolution · #6 09-01-2005, 11:45 AM

use this, if you can feel a difference in weather, then the engine will deff. need to be tuned.

if you set out and the temp is notciably warmer/cooler, more humid/less humid

stuff liek that then the engine will need t be tuned, if you can't feel the difference, it is safe to run it with out tuning.

sometimes certains engines will always want a slight tiny adjustment

savagemachine · #7 09-01-2005, 01:42 PM

What ever truck,engine you have got a cahnge in humidty you will more than likley find you will have to tweak HSN either leaner/richer but this should not have to be done on every run as unforyunally in the U.K it is not that much change in humidty so all your tunning HSN and Lsn should be untouched in theory.

Hope this helps a little

Savagemachine

LandSharkGT · #8 09-01-2005, 06:52 PM

This is a great TUNING LINK! for weather related tuning tips!

CHARLYROXS411 · #9 09-01-2005, 07:52 PM

ok, but how do you tune it?i live in houston
peace out

savagepicco26 · #10 09-01-2005, 08:13 PM

Quote:

Originally Posted by CHARLYROXS411

ok, but how do you tune it?i live in houston
peace out

look at the post right above yours.

LandSharkGT · #11 09-01-2005, 08:23 PM

Some people just dont read the WHOLE THREAD! LOL!

CHARLYROXS411 · #12 09-01-2005, 10:24 PM

i finally went to that link.it helped alot.but i need some1 from houston to tell me.its easier if talk to him/her if we live in the same enviroment.

peace out

Duster_360 · #13 09-01-2005, 11:13 PM

I live in Houston and I pretty much tune just about every time I run my Tmaxx that still has the 2.5. Its usually little tweaks to the HSN based on what the temp and humidity is doing. I assume you got the same red tuning card I did with my Tmaxx - thats the direction you need to adjust. I wait til its warmed up and usually make about a 1hr (think about a clock face) tweak to the HSN. then run some more and see if it made the diff I thought it was going to and check smoke and sound. If those are ok, then when I check temp, thats usually ok too.

This keeps mine where it will wheelie. If I wasn't making these small tweaks, somedays it would seem like it was running sluggishly and wouldn't wheelie. The 2.5 has a small sweet spot and these little tweaks seem to keep me in the sweet spot. It changes with theconditions. Watch someone like Slayden (with his 2.5s), he gets it hot and then he tunes it for the conditions.

Pay attentionto the weather when you go run and remember them for the next time. Its the diff in the conditions from one time to the next that drive the direction of the changes.

MaxxThrasher · #14 09-02-2005, 01:30 PM

I think it's all in the engine your running. I live in Houston also and now run my HPI Savage exclusively and hardly ever have to fool with tunning. Once in a while if we have a very noticable temperture change I'll have to tweak the HSN, but that's about it.

When I drove my T-Maxx I had to tweak the needles no matter what the temp. was or part of year it was and most times I had to tune it through each tank of fuel every single time I ran it.