1985 maruti advice needed for engine mods

arunkvc · 5th September 2007, 13:37

i am sorry if i am repeting the post if so please help me out.

i have a maruti 800 1985 model i have pit in a headder and high lift cam shaft and going to put in a esteem carborator. the main thing is i need it to pick up fast and do atleast a 150km so please advice.

ps: i have a webber carborater have to try and find out how it works.

Akshay1234 · 5th September 2007, 15:35

put in a zen engine.

on a serious note do you already have a high performance air filter and a free flow exhaust? if not then you can start with those.

pawan · 5th September 2007, 16:17

v1p3r old signature:
ss80+g13/d15+t3/t4=13 sec.

arunkvc · 5th September 2007, 16:44

the engine has been done only the carborater to be fitted. first i have to find one have spoken to some guys have to get a good one.

arunkvc · 6th September 2007, 10:02

what filter shall i put into it any suggestions

Akshay1234 · 6th September 2007, 17:12

get a k&n or ractive conical.

mclaren1885 · 6th September 2007, 18:09

Arun, just by changing the carb, a high lift cam and headers I do not think you will be able to extend your top end by that much unless your engine in itself will produce power at such high rpm's. If you want more power, I suggest you get yourself a 1.1ltr engine or a zen engine. IIRC, even a esteem engine fits into the engine bay of a 800. If speed is what you need then this would be the best option.

Or do an engine overhaul of the existing 3 cyl engine, check if the compression is alright. Change the oil, do some basic mods and see if you are satisfied. Going by the fact that you do rally, I think a esteem engine in the 800 is what will satisfy you the most.

fieroid · 6th September 2007, 23:47

if performance is ur only goal, then plonk the 5-speed 800/alto's 12 valve head. Use the zen or esteem carb, get a hot cam and header and it will be a screamer. Infact it can give complex to some mid-size cars too.
However, u need to work a lot on upping compression and getting the right state of tune. u can also mount a 5-speed gearbox.
The stock 800 bottom can be retained with the exception of only having to change the pistons to the ones with the 4-valve recess.

bablue · 7th April 2009, 12:53

Arun. I have been following your thread. Where is it headed now. Can you please let us know about it. How is your car performing and what all technical modifications you have got done. I am eager for your reply

5th September 2007, 13:37	#1
arunkvc Newbie Join Date: Aug 2007 Location: bangalore Posts: 22 Thanked: 0 Times	1985 maruti advice needed for engine mods i am sorry if i am repeting the post if so please help me out. i have a maruti 800 1985 model i have pit in a headder and high lift cam shaft and going to put in a esteem carborator. the main thing is i need it to pick up fast and do atleast a 150km so please advice. ps: i have a webber carborater have to try and find out how it works.
	() Thanks

5th September 2007, 15:35	#2
Akshay1234 Team-BHP Support Join Date: Dec 2006 Location: Mumbai Posts: 10,265 Thanked: 12,317 Times	put in a zen engine. on a serious note do you already have a high performance air filter and a free flow exhaust? if not then you can start with those.
	() Thanks

5th September 2007, 16:17	#3
pawan BHPian Join Date: Sep 2006 Location: auckland, new zealand Posts: 868 Thanked: 4 Times	v1p3r old signature: ss80+g13/d15+t3/t4=13 sec.
	() Thanks

5th September 2007, 16:44	#4
arunkvc Newbie Join Date: Aug 2007 Location: bangalore Posts: 22 Thanked: 0 Times	the engine has been done only the carborater to be fitted. first i have to find one have spoken to some guys have to get a good one.
	() Thanks

6th September 2007, 10:02	#5
arunkvc Newbie Join Date: Aug 2007 Location: bangalore Posts: 22 Thanked: 0 Times	what filter shall i put into it any suggestions
	() Thanks

6th September 2007, 17:12	#6
Akshay1234 Team-BHP Support Join Date: Dec 2006 Location: Mumbai Posts: 10,265 Thanked: 12,317 Times	get a k&n or ractive conical.
	() Thanks

6th September 2007, 18:09	#7
mclaren1885 BANNED Join Date: Jul 2005 Location: Bangalore (the city of modded cars) !! Posts: 4,820 Thanked: 45 Times View My Garage Infractions: 0/1 (10)	Arun, just by changing the carb, a high lift cam and headers I do not think you will be able to extend your top end by that much unless your engine in itself will produce power at such high rpm's. If you want more power, I suggest you get yourself a 1.1ltr engine or a zen engine. IIRC, even a esteem engine fits into the engine bay of a 800. If speed is what you need then this would be the best option. Or do an engine overhaul of the existing 3 cyl engine, check if the compression is alright. Change the oil, do some basic mods and see if you are satisfied. Going by the fact that you do rally, I think a esteem engine in the 800 is what will satisfy you the most.
	() Thanks

6th September 2007, 23:47	#8
fieroid BHPian Join Date: Mar 2005 Location: bangalore Posts: 706 Thanked: 304 Times	if performance is ur only goal, then plonk the 5-speed 800/alto's 12 valve head. Use the zen or esteem carb, get a hot cam and header and it will be a screamer. Infact it can give complex to some mid-size cars too. However, u need to work a lot on upping compression and getting the right state of tune. u can also mount a 5-speed gearbox. The stock 800 bottom can be retained with the exception of only having to change the pistons to the ones with the 4-valve recess.
	() Thanks

7th April 2009, 12:53	#9
bablue BHPian Join Date: Sep 2006 Location: shimoga Posts: 29 Thanked: Once	Arun. I have been following your thread. Where is it headed now. Can you please let us know about it. How is your car performing and what all technical modifications you have got done. I am eager for your reply
	() Thanks