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Thread: Ultimate sr20 block

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Posts: 11-20 of 31
2009-04-17 12:47:46
#11
Originally Posted by Andreas
The CM6 has been out for 10 years to the public.


^That's great to know. I just don't know anybody running them. They have a lot of DUR over the C3's, I bet the idle is crazy.
2009-04-17 13:33:05
#12
Originally Posted by Doctor
Hillarious. Clown.

I asked for input on what will make a decent bottom end for an all motor SR20. The only constraint I have is to stay 86mm stroke and I don't want to go over 90mm bore.

If you don't have something constructive to add then rather shut the pie-hole.


Dude, Clown i can be, LOL!!!!!

Ya know what i will keep my keyboard locked...
2009-04-17 14:05:00
#13
Originally Posted by Doctor
Eagle rods?
Any reputable rod will do. Shop around.

Originally Posted by Doctor
AEBS headstuds
Look into the B16a Honda head studs instead. Golden Eagle brand or something. Cheap.

Originally Posted by Doctor
4CW or 8CW crank??????
I like the 8CW but there are arguments both ways.

Originally Posted by Doctor
Custom insert for lower oil pan to allow higher oil capacity?
I wouldn't bother.

Originally Posted by Doctor
Anti-splash plate??
Crank scraper and baffles, yes. See: http://www.crank-scrapers.com/Datsun-Nissan.html

Originally Posted by Doctor
Electric water pump or not????
If not electrical, make sure to under-drive the water pump. Do mechanical for simplicity. Do electric for more power.
2009-04-17 16:03:39
#14
I like eagle rods, cheap and come with arp 2000 hardware.
2009-04-17 18:23:31
#15
eBay Motors: Manley "H-Beam" Connecting Rods SR20DE SR20DET (item 250400508779 end time May-02-09 11:59:48 PDT)

This rod its superior to eagle.
Cheers.
2009-04-17 18:25:47
#16
Originally Posted by Andreas
For a NA SR22DE I would go with parts listed below from what I know now.

90mm 12 to 1 pistons ( I actually would go 91 or 92 mm )
86mm Knife edged crank
Mazwox 92 mm headgasket
O2 induction Manifold with N1 70mm TB
Ported Highport Head and convert to Tomei Solid Lifter
BC valve springs and retainers
JWT CM6 cams
370 cc Injs
Nice 4 into 1 header
3 inch exhaust
Aluminum flywheel
JWT clutch
G spec Pully
Calum Realtime ECU
Maxima MAF
VE oil Pump


When I made 200 WHP in my SR22DE back in 1999 I was running

90mm 12 to 1 pistons
Stock Crank 86mm
Ported head
JWT valve springs and titanium retainers
C3 cams ( Did not get a chance to put CM6 solid lifter cams in )
O2 induction manifold, 64mm bored TB ( If I knew about he N1 TB it would have ben on )
4 into 1 header
2.5 inch exhaust ( If I knew better I would have run 3 inch and picked up 5 more WHP )
JWT ECU
Bored out 54mm MAF ( If I knew better I would have run a Maxima 3in MAF )
Aluminum flywheel
JWT clutch
UR Crank pully

My 2.2L DE setup would have gotten to 220 WHP if like said above, I had

1. 3inch exhaust ( 3-5 WHP )
2. CM6 solid lifter cams ( proven to make 10-13 WHP more than C3 cams )
3. N1 70mm TB instead of bored out stock TB to 64mm ( Who know 1-3 WHP )
4. 3 inch Maxima MAF instead of bored out stock 54 mm MAF. ( 1-3 WHP )



Why wouldnt you use ITB's?
2009-04-17 18:28:30
#17
Originally Posted by L4t3ncy
Why wouldnt you use ITB's?



ITBs are over rated.

and

A set of ITBs and all that come with it will cost way more on a Nissan.

and

It is proven that a proper Intake manifold and large 80-100mm TB setup will outperform ITBs.
2009-04-17 18:32:52
#18
2009-04-18 05:54:02
#19
I already have the underdrive pulleys and ITB's on the VE head. EMS also taken care of already.

Just trying to put some miles on the current 86mmx86mm N1 piston block, then I will have it dyno'd and we can see how the ITB's do on a VE.

This is a good build, but I'm just thinking ahead with this 2.2 block. Would probably just carry over everything from the headgasket up.
2009-04-18 16:00:57
#20
I've seen ITBs on honda F22 SOHC motors make nearly 400hp. I've never seen a plain intake manifold do that.

IT will cost a lot, but will repay the cost in wondrous sounds and high revving power.
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