Club126UK

Fiat 126 Chat => Tuning & Customising 126 Models => Topic started by: ntniki on August 13, 2008, 09:55:14 PM

Title: Increasing performance
Post by: ntniki on August 13, 2008, 09:55:14 PM
In everybodies opinion what is the best way to get a bit of extra power from the 650 motor?
theres a stretch of highway where the speed limit is 100kmh and while i was driving the niki to work she would sit just north of 80-85kmhs, what could i do to make it easier to just cruise along.
Any ideas?
Title: Increasing performance
Post by: stuey on August 13, 2008, 10:49:20 PM
replace the mechanical fuel pump with an electrical one=less frictional loss

performence air filter/exhaust

chuck the back seat out..

loose the side mirrors

perspex side+rears window

and have a big dump....
Title: Increasing performance
Post by: Pete126 on August 13, 2008, 11:58:22 PM
The 650 aircooled should be good for 65-70+mph on a flat road with no strong head winds.
assuming the engines in good condition try re-setting/replacing the points > then the plugs > then the ignition timing and see if that improves the performance.
Theres lots of performance bits available but the cost outways the performance and usually makes the engine more un-reliable, as Stuey said fit an electric pump makes the car easier to start. but each to there own.
Title: Increasing performance
Post by: ntniki on August 14, 2008, 12:25:38 AM
Dont mind spending a bit of beer money on it, will get prices on the exhaust though
Title: Increasing performance
Post by: 126dave on August 30, 2008, 07:30:00 AM
be carefull with modding for performance....the aircooled is a rattly little thing and anything fitted as an aftermarket mod will usually sucumb to the vibrations of the engine......its an expensive never ending quest,and you end up with an unreliable and at the most 40bhp toy.....

keep it standerd and well serviced....thats my advice....
Title: Increasing performance
Post by: Dom on August 30, 2008, 11:52:09 AM
Welcome back Dave! How are things where you are now? Where is the original Buzzbomb residing nowadays?
Title: Increasing performance
Post by: 126dave on August 30, 2008, 02:23:26 PM
hey thanks dom !!....the original buzzbomb was sold with buzz 2...i dunno whats happened to either of them.....the yellow one was aparently going to be fitted with a bike engin and raced....the blue i heard last was being stripped and rebuilt with leather interiour etc.....

over here(malaysia) there are no 126's very very few 500's, more 600 and 850 sports etc.....at the moment im after 1974 124 special t twin cam 1600....


hows your 500 going?
Title: Increasing performance
Post by: dajwid on August 30, 2008, 08:21:42 PM
Welcome back, you were missed.
Title: Increasing performance
Post by: Pete126 on August 30, 2008, 09:44:10 PM
:smt006 :smt039  :smt041
Title: Increasing performance
Post by: 126dave on August 31, 2008, 05:13:45 AM
:D  thanks guys......
Title: Increasing performance
Post by: Dom on September 01, 2008, 10:40:10 AM
500 is going pretty good. Still shabby bodywork, but engine has been a steady upgrading exercise and as you say its an expensive never ending quest!

126 not so good - has still been sat in drive for nearly 2 years now!  :oops:

Rally spec 124s are gorgeous cars - good luck in your quest
Title: Increasing performance
Post by: 126dave on September 01, 2008, 11:37:08 AM
ah this 124 isnt in rally spec its a one owner minter with the 1600 twin cam motor....one old man owner......
Title: Increasing performance
Post by: Si599 on September 01, 2008, 05:36:09 PM
Where can u get performance exhaust for a 126 in the uk & also what Air Filters fit, could u just modify a K&N Filter to fit?
Title: Increasing performance
Post by: Dom on September 02, 2008, 11:05:48 AM
In the UK, performance (and parts in general) are way overpriced, but you can get performance exhausts from places like

www.fiat500.cc
Ricambio
Ricambi (on ebay)

They are primarily Fiat 500 specialists, but the exhaust would be the same for an air cooled 126. Bis tuning parts are harder to source.

If you do not want to order from Italy, Germany or Poland I'd recommend checking eBay regularly. Though i wouldn't even think about buying my parts from the UK, unless I need a small part urgently (I.e. a brake cylinder for MOT) I always use the foreign companies and order through their websites - very simple and far cheaper than UK prices.  

Regarding the air filter, you could modify a K&N style filter. There wouldn't be too much gain from this however as you would still be running the stock carb. Many people do mount a small K&N style filter directly to the top of the carb, this does benefit from being freer flowing, but at the cost of hotter air.

See link below for previous discussion on this topic.

http://club126uk.co.uk/forum/viewtopic.php?t=2632&highlight=air+filter
Title: Increasing performance
Post by: GTMaster on September 15, 2008, 04:06:06 PM
Axel Gerstl has good performance parts. Though a tad far away. And expensive for europeans too i'd imagine (just check out some of the prices: yikes).
Ignition timing,spark plugs, exhaust, air filter, sports cam, performance carb, upping the compression (though more work and costs more). Don't know.
Though has anyone thought of turbocharging a 650 engine? That would be mad...
Title: Increasing performance
Post by: phreak97 on September 18, 2008, 01:00:48 PM
if all youre getting is 85km/h then you need to sort out your current setup before looking at performance parts, you should be able to clear 100km/h quite easily. check the points (and point gap), timing, spark plugs (and gap), and fuel mixture. you could also make sure the fuel pump is working properly.
it might be worth doing a compression test if none of that helps.. you could also check the coil, do you have an original duel coil setup?
hopefully just adjusting things up will fix it for you.

my friend and i drove a niki from adelaide to surfers paradise, we did between 90 and 120km/h most of the way.

something else that improves top speed but will lower acceleration, is oversize tires.. the niki we drove had them on it, mine doesnt, mine does about 110 before it starts to rev a bit high for comfort, his does about 120+

it depends what youre after. i prefer low speed agility.
Title: Increasing performance
Post by: GTMaster on September 18, 2008, 05:57:41 PM
Well, i was thinking of performance parts as tuning, but as you stated, getting the car backs to it's original form does help performance (breaker points, spark plugs, carb etc) and checking the compression really does tell alot about the engine.
A budget tune would be e.g. putting more air in the tyres, taking out the rear seats and passenger seat, stripping the bumpers. A bit empty but it would add to performance :)
Title: Increasing performance
Post by: dajwid on September 18, 2008, 08:38:43 PM
I am suprised, very suprised that you have not tried the Hungarian 126 sites that cover tons more about 126 tuning. Most tuning parts are even easier to find than in the UK.

http://fiat126.hu

Not that you are not welcome of course, but the tuning scene in your country is huge compared to the UK.
Title: Increasing performance
Post by: phreak97 on September 19, 2008, 03:23:22 AM
doing anything at all to a car can be a problem in australia.. if you take the rear seats out (i use my rear seats though) then you have to tell the registrar of motor vehicles.. youre not allowed to take the bumpers off, theyre a legal requirement.. i think the side mirrors are aswel.
Title: Increasing performance
Post by: Gordan on September 19, 2008, 06:56:50 AM
ive jeust recently found a new and revolutionary method of increasing performance  :lol:  , its really quite simple, newer fill your fuel tank to the top, why drive around fuel which you can put in later, and drive faster, ive found that going 60kmh up a hill in third is much easier with a 1/3 of gas than with a full tank....  :D  :D  :D
Title: Increasing performance
Post by: stuey on September 19, 2008, 02:45:47 PM
Ive managed to get an electric fuel pump for a 126 recently Im gonna do a gps based before and after test to see if losing the frictional loss of the fuel pump makes a difference to the alans performence I'll post some results in my thread...
Title: Increasing performance
Post by: dajwid on September 19, 2008, 04:13:17 PM
Should be interesting, keep us posted. What pump are you using?
Title: Increasing performance
Post by: GTMaster on September 19, 2008, 05:34:55 PM
Well i haven't really bothered with Hungarian tuning sites, cos the ones i've seen are mainly about optical tuning, rather than mechanical tuning. Also, you've probably heard and seen the Polski Fiat with the diesel engine doing drag races. To me, putting in a different engine isn't tuning, nor is nitro. Use what you have to get the maximum. That takes talent :)
Title: Increasing performance
Post by: GTMaster on September 19, 2008, 05:38:08 PM
Yeah, that's right! Use F1 tactics: play with your fuel :)
Title: Increasing performance
Post by: Gordan on September 19, 2008, 05:54:44 PM
:D  :wink:
Title: Increasing performance
Post by: stuey on September 29, 2008, 05:22:50 PM
Quote from: "dajwid"
Should be interesting, keep us posted. What pump are you using?


its one of these- was fitted to a bis I got it second hand..

http://www.fuelflow.co.nz/pump.htm

updates to follow soon