Intake Plenum, Is Bigger Better?

[Twistedturbine]

from my understanding a stock dohc intake will not work with the 2.5l distributor. apparently a status intake will clear but its too long and would end up getting real friendly with the rad. Besides theres nothing cool about the stock intake. And im not really woried about lack of low end power with a 2.5, mabey if it was a 2.2 i'd be concerned. All my 2.5 powered cars got low end power to spare. Well the have torque anyway, a lot of tire roasting torque. I think it might be good to lose a little in the lower rpms, might help me keep the tread on my tires.

[Garret]

the stratus will still clear the rad

[whywoody]

I'm using a stock stratus intake,head,cams,and tb,on a 2.5 in a minivan.
It clears the alternator by about 1" and the stock rad/fan by about the same.The oil filter is in the way,so a relocation kit was used (best to get the type that the lines are at a 90deg to the block).It does clear the distributer,but the manifold's flange needs to be ground to give some adjustment range.Needs extra vac barbs added to help you down the road.I also had to move the map/baro down under the battery tray,close to the tb,as the signal was to slow and kept bringing up codes.
It is very strong down low,which is fine for me,as I think it would still be a great daily driver even with a really large turbo.I don't tend to rev mine real hard,but when needed it still seems to pull better up top than my 8v ever did.
Oh,and it was CHEAP!!!

[turbovanman]

^^^^^^^^Have you dynoed it yet?

Those look like stock cam gears?

[The Pope]

and people say it takes allot more money to do a hybrid hehe

[Wizard]

What did you do to that engine in that caravan? That is very helpful to visiualize what it is like in a caravan because future for DOHC too in my caravan also. Ouch, not much room to stuff long intake style over the head.

I'm curious about that stock, what you have done this way? Cam spockets on that DOHC because this requires modication to rest of
spocket on the block.

[whywoody]

The cam gears are modified '89 Honda accord a20a.Honda seem to make about 4 different gears for what looks to be the same engine,but I found these cast steel ones where easy for me to adapt to the dodge cams.The belt alignment is actually better than in the pictures,I had tensioner problems running the belt into the block.
I re-drilled the locating pin hole to correct the valve timming,so the cams are straight up and the engine is right on TDC.,with the belt tensioned.I have not dynoed it as the turbo is proving to be way to small,making it very difficult to control boost.

[turbovanman]

^^^^^^^^^Thanks, but it looks like TIII for me, just sourced a bunch of crap for mega cheap. All I need now is cams,

[russ jerome]

Quote:

Originally Posted by whywoody The cam gears are modified '89 Honda accord a20a..

So it looks as if you only had to machine one side and make
a bushing for bore? Simply oversizing the keyway and making
little keystock fillers would make them adjustable!

[The Pope]

Hondas are good for something!

[whywoody]

Quote:

Originally Posted by russ jerome So it looks as if you only had to machine one side and make a bushing for bore? Simply oversizing the keyway and making little keystock fillers would make them adjustable!

Yep,I machined the inside back flush with the 'spokes' of the gear,and added a 1mm thick bushing to the centre .The key way was raised slightly on the exhaust cam,as it set this cam in the stock position perfectly,once the belt was tensioned.The intake cam gear ends up 1/2 tooth out,so I re-drilled the key way around further,again timming the cam in the stock position (2.4 stratus)
The gears end up very close to the head,and still leaves some room at the end of the cam,so that the bolt tightens the gear with out bottoming against the cam first.The belt runs on the very inside of the cam gears,which looks a bit odd,but lines up fine with the bottom end.

I am too ashamed to tell you guy's how I machined these pieces (well OK,don't laugh,it involved a die grinder cut-off disc,with 400 grit paper glued to it,and then mounted in a drill press,and lots of measuring/patience...),but I checked them for run out with a dial gauge,and once mounted they are near perfect.They would be perfect if done on a lathe!
I have put this thing together on a banjo string budget,but I don't expect huge power,and so-far it has been very reliable!

[russ jerome]

Quote:

Originally Posted by whywoody The gears end up very close to the head,and still leaves some room at the end of the cam,so that the bolt tightens the gear with out bottoming against the cam first.The belt runs on the very inside of the cam gears,which looks a bit odd,but lines up fine with the bottom end.

Well thats EXACTLY where the big dollar ones sit, on purpose!
Correctly placed as your's are you need to grind just a little
bit of head to clear. Great work Woody hats off to you!

Who/How did you make the spacer?

We need to sticky this gear idea. If a person has the jing
adjustable's from FWD rock but for my daily driver van this looks ideal!

[Garret]

[turbovanman]

Quote:

Originally Posted by russ jerome Well thats EXACTLY where the big dollar ones sit, on purpose! Correctly placed as your's are you need to grind just a little bit of head to clear. Great work Woody hats off to you! Who/How did you make the spacer? We need to sticky this gear idea. If a person has the jing adjustable's from FWD rock but for my daily driver van this looks ideal!

Dude, your a mod, you CAN sticky it,

[russ jerome]

Quote:

Originally Posted by turbovanman Dude, your a mod, you CAN sticky it,

LOL ya I knew that smart butt! Just need all the
info first, in its own blurb Gathering my own info
right now on years and availabilty of the a20a SOHC
gears and applications. Would be nice if we can find
a more popular application, old used ricer upgraded
gears would be cheap but no go on the a20a lemon.