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4-stroke Performance - Tuned Free-Flow Exhaust
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Boy o Boy... So the ball has finally rolled. Joel, feeling really happy for you today. You have come a really looong way. This is your playground and I am sure you are going to do wonders here.
The bike is doing great. Its brilliant in the city. Would be stretching her a bit on the highway comin weekend.
All those who love their bikes more than any body else, take her to Joel for his Magic touch. He is a Magician.
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@Joel bro, thanks for bringing this up to us... as you told me before a performance upgrade for FZ is possible, so my question is how much can i gain the performance from the stock?
can you shed some light on this, as i am not that much familiar with it?
Thanks in advance...
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I for one didnt believe a mere exhaust change can give neck snapping performance, ie., until Frankenstein hooked me up with a hand crafted FFE for my T165. Makes a helluva difference!!
Exhausts from commerical players are generic across a breed of bikes, so power gains if any are not substantial. But getting a one-off custom exhaust tailored for one's bike is something else.
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The p180 can also be worked on. But it will need more work inside the engine than merely an exhaust. Nevertheless the exhaust alone will still give you good gains.Originally posted by anhil8tr View PostPls tell me you can work out something on my p180. I'll be glad to lap it up.
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Thanks for uploading the Video.Originally posted by Joel View PostThere was no time for anything to be done. Hence only a full race exhaust was installed. Later in the day, the set-up was optimised just a bit by doing some external tune-up. Here is a video of the bike beating a fully stripped Comet 250 for the first 100mtrs and later finished the race just 0.8 seconds behind the 250cc v-twin. This is from a 220cc and 25k run stock engine with a rider who has never raced in his life.
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I was the rider.
U can see how I was flying away from the Comet for the initial 100 odd meters.
With the new fully tuned engine I might very well give the Comet a Run for its Money & CC.
Also the Comet was too light with nothing ( Totally Naked
) with very light alternate parts added & the rider also except for basic cloth riding gear.
Being the first time in a drag/race in my life I was in heavy riding gear.
Full Gauntlet Gloves, Fully armed & protected Jacket, Knee pads, Heavy riding shoes, Very heavy helmet, Kidney protector, Spine protector, etc.
Everything taken for touring!!!
My total riding gear was almost 15kg.
Joel went first & then I wore all these.
When I was near the grid he asked what I was doing with so much of gear?
He asked me to lighten myself if possible.
But it was too late as I was next to go.
So continued with the gear.
To top all this I was Using the normal petrol tank with around 5-6 litres of Petrol.
I did not even do the trial run on the trial day as I registered very late on Saturday & bike was having stock exhaust at that time.
In the middle of the night we fixed the exhaust and as it was very late did not even do any checking.
Next day we needed some internal tuning of the ECU but we don't have the FI tool as its a Sunday.
We even tried to swap an ECU & finally Joel made some external Tuneup.
The Results are in the Video.
Not even 100mts of testing was done before the Drag.
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There was no time for anything to be done. Hence only a full race exhaust was installed. Later in the day, the set-up was optimised just a bit by doing some external tune-up. Here is a video of the bike beating a fully stripped Comet 250 for the first 100mtrs and later finished the race just 0.8 seconds behind the 250cc v-twin. This is from a 220cc and 25k run stock engine with a rider who has never raced in his life.Originally posted by anhil8tr View Postall that by just adding the exhaust???


. WTF. Tuned as in had joel worked on other stuff as well or was it just the exhaust
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Joel made all the difference
Well its Exhaust + K&N + Jetting + Sprocketing.Originally posted by anhil8tr View Postall that by just adding the exhaust???


. WTF. Tuned as in had joel worked on other stuff as well or was it just the exhaust
Only Exhaust was doing well in low revs but in higher revs it was completely losing out in the 220 FI(Very Lean - no option to make it richer as we were not having the DTSFI Tool from Bajaj - Sunday).
Joel made it slightly richer by some means.
Then it was ahead of the comet for about hundred mts or so in the Deccan Quarter mile Drag.
Will upload a video soon.
So on the 220 DTS-i went for the whole setup as we can make the AFR rich.
It took lot of time for setting up everything properly.
The exhaust works brilliantly due to Joel's calculations he made to fabricate it.
The Exhaust needs to be tuned for performance.
It made a huge difference once the engine was tuned.
The Current set up is without opening the engine.
I'm sure if he rips the engine & changes the CDI (220DTS-i) the Bike will hit 160+ & much quicker.
I'm waiting for him to do it by opening the engine now.
Coming to this Bikes power - Only guys who rode the bike in HYD can tell U more about it.
Some of the xBhp members did ride it.
I'll ask them to give their feedback here.
Forgot to mention about the weight.
It was very light when compared to the stock.
Did not weigh either so no clue about exact weights but I can lift the complete exhaust with ease.
The Stock is quite heavy to lift.
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Originally posted by Prabhakar View PostThe Tuned 220DTS-i with joel's Exhaust is Hitting 157kmph on Speedo with a Speed of 151.8 on Nokia N82 GPS.
Some of the Hyd xBhp Members rode it & I believe they can say more about its Pick up & riding characteristics.
all that by just adding the exhaust???


. WTF. Tuned as in had joel worked on other stuff as well or was it just the exhaust
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EDIT: Finally something for the P200.. Thanx Joel. will mail you soon about this.Last edited by MotorBreath!; 01-27-2010, 11:12 PM.
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The Snaps of the Exhaust
The Snaps of the Exhaust in Black finish on a P220.
The Timing in the DQMD is 17.3sec for the Quarter mile.
This was when the Bike was not properly tuned - read very lean.
Now it is Running fine when it did the 151.8 on GPS.
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Congrats Joel.
I always had this intuiton that you wud come up with something rece-performance derived.
Expect to hear from me pretty soon. There are a few issues with my ZMA after which I will contact you..
My ZMa is badly in need of another can and probably a new Carb as well.
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That's exactly what has been missing all these yearsOriginally posted by Joel View PostThanks for the replies.
Yes, will post pictures of the exhaust in about 2 days. I'm building the prototype canister on my R15 and will also try to load a video clip.
@prabhakar - Great to hear the P220 clocked 151kph with the exhaust. Thats some news. I remember the race at Hyd when you beat a comet 250 for the first 100m odd mtrs. A well designed pipe can do a lot to an engine
@satyen - Yes man, the posers will have a hard time now. lol
Yes, the P200 will benefit the same way as the p220 and it can be produced.
The details of the exhaust will be explained over a mail.
Just a thought, Yamaha sells their exhaust for 17.4k with power gains of under 1bhp till 9000rpm. Most of the aftermarket stuffs are again around the 10k ball-park and there is nothing that is performance oriented about it. The Two Brothers pipe costs 20k with again gains quite funny.
Most performance stuffs sold in the aftermarket are more garnished than the real deal it can offer. In most cases striking the balance of aesthetics and no-compromise on performance is very hard to achieve. The effort here is to strike the balance.
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Thanks for the replies.
Yes, will post pictures of the exhaust in about 2 days. I'm building the prototype canister on my R15 and will also try to load a video clip.
@prabhakar - Great to hear the P220 clocked 151kph with the exhaust. Thats some news. I remember the race at Hyd when you beat a comet 250 for the first 100m odd mtrs. A well designed pipe can do a lot to an engine
@satyen - Yes man, the posers will have a hard time now. lol
Yes, the P200 will benefit the same way as the p220 and it can be produced.
The details of the exhaust will be explained over a mail.
Just a thought, Yamaha sells their exhaust for 17.4k with power gains of under 1bhp till 9000rpm. Most of the aftermarket stuffs are again around the 10k ball-park and there is nothing that is performance oriented about it. The Two Brothers pipe costs 20k with again gains quite funny.
Most performance stuffs sold in the aftermarket are more garnished than the real deal it can offer. In most cases striking the balance of aesthetics and no-compromise on performance is very hard to achieve. The effort here is to strike the balance.
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