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Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 1:48 pm
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.
Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 2:04 pm
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 .
Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 3:04 pm
by rob...
looks a bit rich on the A/F, theres another couple of ponies in there with some more dyno time....
Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 3:36 pm
by Snoogle
Good work mate!!
Looks nice too
![Thumbup :thumbup:](./images/smilies/icon_thumbup.gif)
Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 9:39 pm
by VTRDark
Good day at the dyno then. At least you came out with an improvement.
![Thumbup :thumbup:](./images/smilies/icon_thumbup.gif)
RESULT. Can sounds good mate, pop pop pop pop pop pop pop pop pop....... or is that POP POP POP POP POP POP POP ....
(:-})
Re: My 2 into 1 project now with dyno print out
Posted: Sat May 12, 2012 11:18 pm
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)
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 13, 2012 10:55 am
by lloydie
The only down side to it now is its a little bit more lumpy below 3.5k
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 13, 2012 11:06 am
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........
and your video made me laugh YEAH!!!!!!!!
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 13, 2012 7:11 pm
by sirch345
Very interesting results Lloydie, much better than I had first thought
Chris.
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 13, 2012 9:51 pm
by lloydie
sirch345 wrote:Very interesting results Lloydie, much better than I had first thought
Chris.
(interesting) dont you mean shocked because i was
![Laughing :lol:](./images/smilies/icon_lol.gif)
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 13, 2012 10:02 pm
by AMCQ46
It's going to run well when you get the jetting fixed
![Thumbup :thumbup:](./images/smilies/icon_thumbup.gif)
Re: My 2 into 1 project now with dyno print out
Posted: Mon May 14, 2012 6:10 pm
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?
My 2 into 1 project now with dyno print out
Posted: Mon May 14, 2012 6:55 pm
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
Re: My 2 into 1 project now with dyno print out
Posted: Sun May 20, 2012 9:21 pm
by sirch345
lloydiecbr wrote:sirch345 wrote:Very interesting results Lloydie, much better than I had first thought
Chris.
(interesting) dont you mean shocked because i was
![Laughing :lol:](./images/smilies/icon_lol.gif)
![Laughing :lol:](./images/smilies/icon_lol.gif)
yes that as well
Chris.
My 2 into 1 project now with dyno print out
Posted: Wed May 23, 2012 11:18 am
by lloydie
Modified my other headers today in to a 2-1
![Smile :)](./images/smilies/icon_smile.gif)
.i just need to get a new rear down pipe to collector gasket before I can fit them .
![Image](http://img.tapatalk.com/02d8233d-b6dc-7bbc.jpg)
![Image](http://img.tapatalk.com/02d8233d-b6eb-ca19.jpg)
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
![Image](http://img.tapatalk.com/02d8233d-b811-8227.jpg)
![Image](http://img.tapatalk.com/02d8233d-b840-85f0.jpg)
![Image](http://img.tapatalk.com/02d8233d-b868-72b8.jpg)
now 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
![Smile :)](./images/smilies/icon_smile.gif)
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
![Smile :)](./images/smilies/icon_smile.gif)