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Showing content with the highest reputation on 09/18/2013 in all areas

  1. Handling "Power is nothing without control". In order to utilize the maximum power the handling department should be improved. The improvements would be based on the requirements,chassis strength and the suspension setup of the car. The basic principle of attaining better handling is lowering the center of gravity which could be done by either lowering springs or Coil overs. The tires too play an important role in handling because they are the things which keep us connected with the road. So lets see what changes could be made Tires Tires govern at least 50% of the handling department. Good tires could improve braking, traction, cornering and ride quality. The quality of rubber, thread pattern, traction rating etc should be taken into consideration when choosing a tire. A tire with soft rubber would provide better grip and braking and also would improve handling but it would be prone to punctures and will wear out easily and for tires with hard rubber it's the other way around. Low profile tires would improve the looks and handling at the cost of ride quality therefore they should be chosen wisely Lowering springs Lowering springs is the cheapest way to lower the car yet it's not the perfect measure cause the lowering springs reduce the suspension travel and would result in a very stiff bone jarring ride on stock shock absorbers But it would improve cornering and the looks and also will provide more traction during a hard launch. Coil over kit Coil over kit consist of sports shock absorber which has adjustable dampening and coil springs with adjustable ride height. This is the perfect setup for someone looking for perfect handling without compromising ride quality greatly. Yet coil overs are very expensive when compared to the lowering springs but would be the ideal setup specially for our roads. Strut bar A strut bar could be used to strengthen the chassis and to reduce body roll. This connects the two strut towers which would provide additional reinforcement and will reduce chassis flexing during hard cornering. It also improves the vehicle stability while speeding. There are 3 types of strut bars, they are 2 point, 3 point and 4 point namely. The commonly used ones are the 2 point and the 3 point strut bars. The 3 point provides additional stiffness by connecting the strut tower to the body of the car. Lower tie bar / Sub frame brace This is used to connect the two lower arm mounting points. It strengthens the subrame and would result in better cornering. The main disadvantage is the reduction of ground clearance and could lead to damage of the sub frame if it hits and object at a high speed Suspension bushes Suspension bushes could be replaced with either polyurethane or hard rubber. Polyurethane could be too stiff for a daily driven car therefore hard rubber is what is recommend. Start off by replacing the front sway bar bushes with Polyurethane / Hard rubber ones if one needs improvement go ahead and replace the rest but not advisable on a daily driven car as it could hinder ride quality.
    3 points
  2. Fuel System It is one of the most important systems in an engine.Modifying it could lead to more power and better throttle response at the cost of mileage.The basic components that could be modified are the Fuel pump, Fuel pressure regulator, Fuel rails and the Injectors. Adjustable Fuel pressure Regulator This component could be used to adjust the fuel pressure in the fuel lines as required. An increase in pressure would lead to better flow specially at a demanding instance (Full throttle). Also it could be used to alter the drop in fuel pressure incurred when opting for higher capacity injectors. This could solve the delay in throttle response which could result in using higher capacity injectors with the stock fuel pump. Very high pressure is not recommended on stock fuel lines. The forced induction engines should have rising rate fuel pressure regulators to vary with boost. Using it on a NA car would lead to the mixture running rich. Injectors The injectors doesn't need changing unless it's being used for a high compression NA motor or else a Forced Induction motor running on high boost. When choosing injectors the spray pattern and the impedance should be taken in to account. The point to change the injectors is when fuel starvage occurs. So it isn't advisable on a daily driven car as the full potential will not be taken use most of the time. Fuel Rail A performance fuel rail will lead to better fuel flow and fuel atomization. Will also improve the throttle response and will lead to a gain in full throttle. The interior of a performance fuel rail is smoother than a stock one which improves flow but some fuel rails have a very large difference in internal diameter to that of the stock one. So this could cause a drop in fuel pressure so the internal diameter should be considered when selecting one. Fuel Pump An uprated fuel pump will definitely lead to better flow. This this upgrade is required only if you are running an aftermarket engine management with higher capacity injectors. When selecting a fuel pump the flow rate should be taken into consideration. The flow rate is measured in liters per hour. Also some of the aftermarket fuel pumps are noisier than the stock ones this too should be taken into account if its a daily driven car. Most of the fuel system modifications are interrelated with each other. Therefore one should select the best combination considering the application. In my point of view for a daily driven car a good quality adjustable fuel pressure regulator would be more than enough to meet the demands.
    2 points
  3. MD why trolling.. There are enough threads in the forum that is utter crap and non motoring related at all.. at least this one will gather related info on one segment, performance. I believe that is what OP is trying to do. Although his first sentence may sounds like "Superman march" i dont think that he is trying to be a one. So why don't you just relax a little before jumping in to assumptions Cheers!
    2 points
  4. The main aim in creating this thread is to educate people about performance modifications and to share the knowledge regarding them. And also to build a more performance oriented car community rather than one based on fiberglass and huge spoilers Why do modifications? It's done in order to improve things in various departments of a vehicle such as handling,looks,speed,braking etc. A modification can make or break a car,so it's important to choose them wisely. What to start with? It depends on ones preference and what one really wants from his or her vehicle. If it's just the looks a good body kit and a set of alloys would be more than enough to satisfy ones need.But if you are more of a petrol head and into performance one might take the performance path. Performance path is for those who like to feel,hear the difference and not just see it. In my opinion its the best path to take because you can enjoy it at the end of the day. Where to start? It depends on the vehicle one would select for modifications. To make things better the weaknesses should be treated first."Power is nothing without handling" but to start with handling one should know what the final product would be and what figures he is looking for, so for someone who hasn't got an idea about it, starting with engine modifications would be the wiser thing. But for someone who would feel that stock power is enough the brakes and handling is the way to go. Engine Modifications The extent of the modifications depend on what one is hoping to achieve and the amount of cash allocated. Then one would have to choose whether he is going in the NA route or the Forced Induction route.But if it's someone whose wanting to get more power from an everyday car whilst keeping its drivability and practicality it's better to go in the NA route. Some of you'll might disagree but its cheaper when compared to forced induction. The power of an engine is mostly based on air,fueling and ignition,so in order to improve things these departments need improvements. So lets see what could be done. Intake The intake provides oxygen for the combustion of fuel in the cylinder. Therefore more oxygen leads to complete combustion which leads to more power. Colder air contains more oxygen, one might have realized slightly improved throttle response during a cold day or in a cold area like Nuwara eliya. The EFi engines consist of various sensors located in the intake route in order to measure the flow,Oxygen percentage,Intake temperature etc. The values obtained by these will lead to the performance of the engine. If we could decrease the intake temperature more fuel would be added to the cylinder due to the more oxygen present in the air resulting in more power and vise versa. In order to do this most performance engines come with a cold air intake which manages to keep the intake temperature down most of the time Cold Air Intake (CAI) and performance filters Cold air intake is one which is directed in a manner which sucks in air which is cooler than the air inside the engine bay. Normally these intakes are routed through the front bumper or else below the engine bay. These systems have proved to improve the gains but has their down sides. The increase in pipe length will decrease the throttle response slightly and there are chances of water going into the system due to floods etc. If one has a well ventilated engine bay (preferably one with a large front grille) a performance filter will improve the power slightly. A performance filter is one which has better flow than the stock filter whilst filtering the dust and particles. But most of the time the filtration suffers. So one should consider the filtering property too when choosing a performance filter because it would have adverse effects on engine life specially in a country like ours. Cone intake vs Stock replacement performance filter The cone intake would let in more air leading to a slight power gain and also will produce the induction noise which some prefer. The gains will be mostly in the high rpm range and the low end gain would depend on the car and sometimes might be negligible. Also when fixing a cone intake it should be fitted in a place where it could draw in cool air sometimes placing in the stock location of the air box might lead to a drop in power once the engine heats up due to hot air being drawn in. For better performance a heat shield could be used to prevent it from drawing in heated air. The stock replacement performance filter would improve the low end mostly and is not fancy as a cone intake. It doesn't alter the induction noise either yet quite practical for a daily driven car. The gains from these modifications depends on a lot of factors such as the displacement of the engine,compression,flow rates etc. The gain in figures would be anywhere between 2-5bhp (*subjective) Throttle body and intake manifold modifications Increasing the diameter of the throttle body will lead to a gain in some engines while it would kill the low end in some others. The ones running high compression would gain from this cause of the increased amount of air fed into the engine yet it might lead to a drop in air velocities in the ones with normal compression. Throttle body polishing would increase the air velocity which would lead to a slightly better throttle response. Bigger intake manifolds will make a difference in a high compression NA engine or one which is having forced induction but will not be ideal to be used one cars with normal compression ratios. Exhaust The Exhaust system consist of many parts namely the Exhaust manifold,down pipe, catalytic converter,muffler. Exhaust Modifications Before doing an exhaust modification one should know what he wants from it. If it's just the sound a free flow muffler a.k.a Beat barell would do. But if it's performance one would have to modify the components of the exhaust. The exhaust system is based on the backpressure which is needed to some extent for a daily driven car but too much of it will hinder the performance. So the the extent of the modification depends on which rev band power is needed. If one wants to squeeze a bit of power with a tight budget a Cat back system would be ideal. Cat back exhaust It is a system consisting of piping with larger diameter and a performance muffler. But the changes are done after the catalytic converter. This would lead to a better mid and high end whilst keeping the stock low end power. But when choosing the pipe diameter bigger isn't always better. Therefore the piping with the correct diameter should be selected. Exhaust manifold (Headers) These would be changed according to the gain expected. If its a turbo conversion these would definitely need changing. The pipe diameter depends on the application its being used on but they have a gain over the stock manifold which sometimes reduces the velocity of the exhaust gas due to its size and construction. So for someone looking for more power the headers would be a good option. But they should be fabricated by professionals and also it's better to use thermal insulation to keep the engine bay temperature low. Muffler The muffler is used to muffle the sound of the exhaust. The choice depends on the owners preference but most of the time a proper performance muffler which is made by a reputed company sounds better than a Beat barell which is made in Sri Lanka. The free flow is said to reduce the back pressure slightly but the gain in negligible in some cases. The sound it makes depends on the size of the internal pipe of the muffler, The amount of glass wool, the size of the tip etc. A small muffler on a large engine will make is sound real bad while the other way around will hinder the performance of a small engine. There are two types of exhaust setups that could be used in a conventional 4 cylinder engine. First one is known as a 4-1 and the other is known as 4-2-1 4-1 Exhaust Here the 4 pipes on the exhaust manifold is fitted to one exhaust pipe which is known as the down pipe. The gains of this kind of system is mostly on the mid and top end. It is an ideal set up for racing because the engine is running in the high rev range most of the time. 4-2-1 exhaust Here two pipes from the exhaust manifold is joined to a single pipe. This setup improves the mid and low end gain and most suited for street use. Please feel free to share your views regarding these and to correct me if I'm wrong. More information to be posted soon Drive Safe
    1 point
  5. You know while I have the utmost respect for WEPR and Sacha... their services might be a little overkill for the job you require.I'm sure you can find many silencer joints than can do your job at a fraction of the cost....Please bare in mind that It is so easy for 'online experts' to reccomend expensive places because it is not their money being spent...Good Luck!
    1 point
  6. I admire Kalum for being a gentleman and carrying on what he originally intended to do. Kudos for you man. I don't really care whether you copy it from google or not but end of the day it is interesting to read. We all learn from somewhere and nobody wants to reinvent the wheel. By the way Kalum seems to have hit a nerve here. I wonder why??
    1 point
  7. Coming soon!!! How to modify your Maruti 800 to a "Pocket Rocket" and make yourself believe it's a fast car(but in reality getting your ass handed to you by tuk tuks)
    1 point
  8. Another popular car design company is M****d car styling.Although they are relatively new to the mod scene yet they have captured our attention with their radical designs,top notch quality and attention to detail. Here are some of their work....
    1 point
  9. MPs play havoc on expressway MONDAY, 16 SEPTEMBER 2013 23:12 Two parliamentarians, who had tried to show their high-handedness on the Katunayake Expressway, were forced to withdraw following interventions by the security forces personnel. The parliamentarians who entered the expressway violating the restrictions were from the Western and North Western provinces, sources said. One MP had removed road barriers and entered the expressway, but after the police were alerted the moving vehicle was brought to a halt and sent back. The other MP had entered his vehicle to the expressway insulting security officers and not heeding their orders. However his vehicle was also taken out of the expressway after security forces personnel intervened. The Transport Ministry said this kind of irresponsible acts resulted in hampering the progress of work on the expressway which it hoped to complete swiftly. The ministry said nobody was permitted to use the expressway which is due to be declared open next month. Source: http://www.dailymirror.lk/top-story/35518-mps-play-havoc-on-expressway.html Both are my relatives
    1 point
  10. As I said, my choice was purely cosmetic. I am fond of cars with amber lenses (which is a thing of the past, sadly) and the pre facelift has them. Cosmetics aside, you should go for one that has been maintained well. A nice car won't look quite so nice when it's spending time at a mechanic's!
    1 point
  11. 6. Might use a fart cannon on a Maruti.
    0 points
  12. Ok I'll edit my posts...Thank you Since i have received services from all the companies I've mentioned.It is sort of a personal reccomendation.You can see on other project threads people raving about certain garages and stereo companies repeatedly and at length...
    0 points
  13. I always do Don...I just cannot stand people ridiculing other people's tastes and likes and acting in a biggoted manner...Anyway that is why I have started posting the other side of modification just to even out this thread and I shall try to enrich this thread the best I can...Thank you for understanding as always.-MD
    0 points
  14. No trolling cus,everything posted here 100% truthful and honest. BTW the mutual ass kissing society might recognise one of the cars I posted earlier...Kindly reffered to me by an interested party.You have a traitor in you midst gentlemen...Have a nice day! Looooollll
    0 points
  15. Sri Lanka's premier cosmetic modifier is undoubtedly Dumi##a international.It comes with a rich racing heritage too.Dumi##a's father S.A Amarasiri and my dad even used to race together at Katu... so please check out these videos from the popular TV program Autovision featuring Dumi##a...His advice is truly priceless. http://www.youtube.com/watch?v=eO-wQtph7Oc
    -1 points
  16. Dear Kelum_Wj I have heard your Maruti 800 is very fast...Please let us know what performance modifications you've done to it so we can all learn.Thx
    -1 points
  17. WOW Mrcat.. U made my day.. thanx..
    -1 points
  18. Oh yes...With platinum you can have more enjoyment at the end of the day... Iridium is not much enjoyment
    -2 points
  19. ROFL how many hours of Wikipedia did it take to come up with this?.....platinum good enjoyment neda ah ...at the end of the day! ...LOL god help the poor saps who take the advice from these internet heroes...aney hukey BTW I see you and your mutual ass kissing society have taken to de-repping my posts...not that I give a damn but take it like a man bro.I pointed out a flaw in your posts and this is how you respond?...typical internet poser BS...what next?t your gonna tell to mommy on me?
    -2 points
  20. I'd like to know the answer to that also please.... LOL...Noted
    -2 points
  21. Oh no dear...According to my sources I seem to be the one hitting all the nerves.Chaos seems to have broken among the mutual a$$ kissing society....People calling up people trying to make sense of what's going,and people telling people to calm down and not pay attention to me and offering them a shoulder to cry on...All the while wondering how the hell I found out OP has a pimped out Maruti 800.
    -2 points
  22. Kelum WJ I'm still waiting for my reply sunshine! Oh please oh please let us know what'll make our cars "more enjoyable at the end of the day"...I never knew we were not enjoying our cars with the fiber and spoilers...but then again we are the poor stupid uneducated "eg/ek/lancer" crowd no... Also I am wondering what makes your holiness so entitled to grant us your wisdom so generously?...Are you a professional race car tuner?What do you drive anyway? From my point of all this "advice for beginners" looks like a load claptrap mixed with almost word for word quotes from Wikipedia...Is this a pathetic attempt at getting cyber high fives and pats on your back?
    -3 points
  23. Another popular mod house is Nilakto at Boralesgamuwa.Over the years I have found it's owner ,Samarakoon, a very easy man to work with and capable of producing my vision exactly on to any car I presented him with... Now I don't have to scour the internet and break forum rules posting pics of Nilakto's work cos I have some of their work right here at home with me... So here's Sol...Bodykitted.new front facelift.18" OZ Fittipaldi rims and rubber...It is ofcourse very slow carrying all this weight around,but it still would be able to beat any performance enthusiast's Maruti 800 like OP's car quite easily...pics of my old cars crx,rx7 and pajero to come...enjoy!
    -3 points
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