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Intake manifold work
Posted: Tue Oct 30, 2012 11:15 pm
by Pumpingiron
Posted: Tue Oct 30, 2012 11:27 pm
by NafemanNathan
That looks amazing!
... And now I'm really not satisfied with my ATR IM
What did you use to scalp it with? And then have you just welded it back up?
Posted: Tue Oct 30, 2012 11:40 pm
by Pumpingiron
I suggest you a 80-120 grit sand paper rollers! I´m using specific porting and polishing rollers i bought from us websites! You have some groove patterns to take account but then that´s the Polisher secrets lolll....logic here is a main factor!!
Yes Alluminium Tig welded afterwards!!
Posted: Tue Oct 30, 2012 11:45 pm
by NafemanNathan
Might be one mod I leave for a while... I have too much time allocated to too many other mods and no time to spare for those as it is, but definitely going on the list
Posted: Wed Oct 31, 2012 11:13 am
by nucleustylzlude
Great job!
I started porting out my inlet on my supercharger kit to match my 68mm TB and appreciate how much work goes into this. Still got the lower part of the ludes inlet manifold to tidy up - not looking forward to it.
Posted: Wed Oct 31, 2012 11:59 am
by Lude-dude
is this ok to do without flow bench people go on about?
Posted: Wed Oct 31, 2012 12:08 pm
by nucleustylzlude
Flowbench would be ideal + years of experience in it! But we DIYers don’t have access to these kind of things. But enlarging volumes and ports for greater capacity and removing casting marks is just simple stuff. Beyond this it gets technical, but you can make improvements for the right build. Without the right tools it is very labour intensive though! A good example in my build looking at previous projects in the US is ported and polished inlets and supercharger casings on the Preludes Jackson Racing kit, can improve airflow no end. You actually see a drop in boost but ultimately equates to better airflow and more power. A popular mod in the supercharger world.
I would say though, port and polishing for N/A engines get’s a lot more technical!
Posted: Wed Oct 31, 2012 12:26 pm
by Pumpingiron
You know flow-benchs are as good as it gets for the amount of air volum you getting from that kind of mods! Yeah i wich to have my own flow bench, i´m planing to make one myself but it´s a time consuming project and can be very expensive!
Some times another problem is velocity of air...something that flow bench hardly measures! Wich is very inportante for NA aplications!
What i did is very basic stuff so i don´t think the need of a flow-bench is required, i also did the head as well but is midle stuff...i don´t like to open much in NA aplications unless of changing the rod/stroke ratio...but then a flow bench is mandatory!
