a lil project this week...
 

Well i'm doing a mpfi swap on my crx dx and was not very impressed with the size of the stock D16A6 intake manifold. sence the car will be boosted in the next few days i thought i would take anvantage of a few parts i had laying around.

plans: weld a stock b16 intake plenum to the runners of the d16a6 IM.

stock a6 IM
Attachment 28262

stock b16 plenum
Attachment 28263

fitment
Attachment 28264

all done and welded up
Attachment 28265

Attachment 28266

Now no making fun of my shitty welds... first time trying aluminum and i have to say it is deffanetly weird....

port matching will be done here shortly...

so how do you think this will help flow? sence it has a bigger plenum and shorter runners?

Re: a lil project this week...
 

i have no clue but that looks tits! id rock it :y

Re: a lil project this week...
 

less torque low end more high end flow

Re: a lil project this week...
 

the head will have to be port mached as well other wise there will be a "lip" that will create flow restriction :y

but if everything is port mached it should be a very good improvement

Re: a lil project this week...
 

Looks pretty sweet. Just a lil portin' and that ---- will be good. Were the ID of the runners the same?

Re: a lil project this week...
 

no the d16 runners were about a 1/8" smaller... so i need to port match to even the flow.

so i plan on only smoothing the transition from the b16 runners to the d16 runners will it hurt the flow if i keep the lil bit of d16 runners the stock sizeing?

Re: a lil project this week...
 

you should have done your port matching before you welded it up! it would have been much easier. it looks good for your first aluminum welding... cast is never fun.

Re: a lil project this week...
 

Yea now that you said it and after taking a look at it i should have ported before i welded it.... oh well there is always next time.

Re: a lil project this week...
 

The head? The only change is in the runners.

Re: a lil project this week...
 

he'll have to port match the d16 runners to b16 ones then he'll have to match the ported d runner piece to the head or it'll all be for nothing.