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Old 19th December 2007, 16:39   #1
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Default rev limit for a alto (800cc)-crazy tach

hey people ,

i got question ..wat is tha rev limit for an alto 800 cc. ????

i have installed a autometer 4899 carbon tach . and its showing me some really crazy numbers. the thing is pulling all tha way till 10k's and iam dead sure thats not suppose to happen .

1sly my tach say "operates on 4-6-8 cyl engines"--i got a three cyl !!,so iam not really sure how many wires to clip to get tha right config.

so does any anyone have a clue how to install it correctly....or is my tach jus messed up ( i got frm US, so if its defected, theres nothin much i can do bout it .)
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Old 19th December 2007, 20:28   #2
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800 CC alto is 3 cylinder one. So only a TACHO that supports 3 cylinder will work. I am not sure but i think revlimit of an alto 800 CC is either 6800 or 7000 but sure its not 10K rpm.
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Old 19th December 2007, 21:17   #3
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Quote:
Originally Posted by abhibh View Post
800 CC alto is 3 cylinder one. So only a TACHO that supports 3 cylinder will work. I am not sure but i think revlimit of an alto 800 CC is either 6800 or 7000 but sure its not 10K rpm.
with the first part. A tacho designed for 4 cyl cars and above will definitely not provide accurate or near accurate readings when used on a car its not designed for.

Not sure about the revlimit for the 800/alto. I am curious about it too. Anyone who has a tacho on the 800/alto could shed more light on the same. I doubt it is as high as 6800 or 7000 rpm as, for the esteem, the rev limiter is placed at 6500 RPM. So my guess is that it is lower for the 800cc engine. I may be wrong here though.

Last edited by n_aditya : 19th December 2007 at 21:18.
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Old 19th December 2007, 22:33   #4
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IT redline at around 7000 rpm as shown in speedzaks gallery

http://www.team-bhp.com/forum/indian...?do=big&p=3629
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Old 20th December 2007, 18:35   #5
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Originally Posted by n_aditya View Post
I doubt it is as high as 6800 or 7000 rpm as, for the esteem, the rev limiter is placed at 6500 RPM. So my guess is that it is lower for the 800cc engine.
Esteem Max power - 85 bhp @ 6000 rpm and Rev limiter kicks in at 6500
Alto max power - 47bhp @ 6200 rpm rev limiter kicks in at 6800 - 7000 RPM
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