My 2 into 1 project now with dyno print out

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mik_str
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Re: My 2 into 1 project now with dyno print out

Post by mik_str »

Nicely done :)

Just curious as to what you ended up doing with the collector and diameter of the link pipe and can you used.

FWIW, I ran a similar set-up (link mated up to collector cut shortly after where pipes join) up. I used a 98 R1 Blue Flame twin-port high-mount can and link pipe (52mm IIRC). The results I got were a very, very slight increase in peak power (@ 0.5 bhp) but a drop in overall torque (@ 2 lb-ft ) with a significant dip in the curve between 4800-6500 rpm.
99 VTR1000F Firestorm, a.k.a. The Carbon Express
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lloydie
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Re: My 2 into 1 project now with dyno print out

Post by lloydie »

the link pipe is 48mm in side and 52mm od so the pipes is 2mm thick .
the can is a 52mm in and 52mm out , the can is a scorpion race can and is 50mm longer than the other cans i had ..
all i did to the headers is remove the out lets section . this gave me a nice big 48mm od pipe to connect my link pipe up to.
and i cleaned up the welds on the in side of the collects where it meets the engine , but i havent fitted the modified rear down pipe so the welds are still there on the fitted one .
rob...
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Re: My 2 into 1 project now with dyno print out

Post by rob... »

looks a bit rich on the A/F, theres another couple of ponies in there with some more dyno time....
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Snoogle
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Re: My 2 into 1 project now with dyno print out

Post by Snoogle »

Good work mate!!

Looks nice too :thumbup:
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VTRDark
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Re: My 2 into 1 project now with dyno print out

Post by VTRDark »

Good day at the dyno then. At least you came out with an improvement. :thumbup: RESULT. Can sounds good mate, pop pop pop pop pop pop pop pop pop....... or is that POP POP POP POP POP POP POP .... :lol:

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lloydie
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Re: My 2 into 1 project now with dyno print out

Post by lloydie »

thanks guys it was a good day as i was expecting a loss and a big flat spot .
ignition advancer next and then im taking to j38 dyno to be setup properly (later this year i hope)
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lloydie
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Re: My 2 into 1 project now with dyno print out

Post by lloydie »

The only down side to it now is its a little bit more lumpy below 3.5k
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agentpineapple
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Re: My 2 into 1 project now with dyno print out

Post by agentpineapple »

its looking and sounding really good lloydie, you make me wish i'd kept to my original idea of a single exit exhaust........ :thumbup:
and your video made me laugh YEAH!!!!!!!!
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sirch345
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Re: My 2 into 1 project now with dyno print out

Post by sirch345 »

Very interesting results Lloydie, much better than I had first thought :thumbup:

Chris.
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lloydie
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Re: My 2 into 1 project now with dyno print out

Post by lloydie »

sirch345 wrote:Very interesting results Lloydie, much better than I had first thought :thumbup:

Chris.
(interesting) dont you mean shocked because i was :lol:
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AMCQ46
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Re: My 2 into 1 project now with dyno print out

Post by AMCQ46 »

It's going to run well when you get the jetting fixed :thumbup:
AMcQ
tony.mon
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Re: My 2 into 1 project now with dyno print out

Post by tony.mon »

Seems that the restriction in the standard system is from the collector back....
Which is very good news, as a big bore exhaust will give good results.......
Mind you, doesn't the printout show 136Bhp at 10,002 rpm?
What on earth happened there?
It's not falling off, it's an upgrade opportunity.
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lloydie
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My 2 into 1 project now with dyno print out

Post by lloydie »

When he hit the limiter it spiked lol .
Yep the rear splitter is very restrictive .
I was thinking about making a bigger bore split link pipe to fit on to the 2-1 headers so to turn it back into a 2-1-2 but without the restriction . But that can wait till next year
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sirch345
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Re: My 2 into 1 project now with dyno print out

Post by sirch345 »

lloydiecbr wrote:
sirch345 wrote:Very interesting results Lloydie, much better than I had first thought :thumbup:

Chris.
(interesting) dont you mean shocked because i was :lol:
:lol: yes that as well :thumbup:

Chris.
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lloydie
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My 2 into 1 project now with dyno print out

Post by lloydie »

Modified my other headers today in to a 2-1 :) .i just need to get a new rear down pipe to collector gasket before I can fit them .
ImageImage
And when I modified these I got a nice clean cut with a smaller cutting disc .
So now I have the rear collector in one piece ImageImageImagenow I can take that to the exhaust shop (when funds are better) to use as a template for a bigger bore section . But have it removable :) so I swap and change between the two .

The other 2-1 headers will be up for sale next week after they have been sand blasted :)
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