what kind of gain if any would i expect from putting a b16 head on a gsr block? is the advantage worth taking off the head and getting a new headgasket?

thanx, Devon

 

B16 head= PR3+mild pnp=ITR/CTR mostly.... the valves/cams are a little different and some other small things. But in reality you would have a poor man's ITR motor.


[Modified by advanracing62, 11:15 AM 11/9/2002]

 

A poor man's ITR with lower compression.
Edit: Weaker cams, valve springs, and lost motion assemblies too.


[Modified by b19coupe, 5:43 PM 11/8/2002]

 

depending on the head, the valve springs may not be a huge issue, some did come with dual exhaust springs, so upgrading to dual intake would yeild the same as ITR. LMA well like I said, other small things, I don't think LMAs are a huge issue at this point. The compression is correct, again another small point here.

 

What kind of gain would you see from putting a gsr block on a b16 head (in other words, you already have a b16, but you upgrade to 1.8 vtec block)

 

I answered this question in the Integra Forum, but I'll say it here as well. I did this swap, since I had a B16a to begin with. I got a B18C1 bottom end and left it stock at first. With a straight B16A w/ boltons I made 142hp and 104 torque. Just by changing the block and a little headwork and GSR cams, I made 165hp and 126 torque with the same bolt-ons. I pulled the block and put in PR3 pistons, 11.1:1 CR and ECU upgrade and pulled out 182hp and 134 torque. I also ran a 13.7@99.6 mph in a 2300lb (no driver, I'm 220lbs) 99 Si. My best B16A run was a 15.8.

But to answer the original question, it may not benefit you to bolt a B16A head directly on a stock block. You probably will make the same amount of power, as you are now unless you do headwork and cams. But in an increase of CR, you will see a difference. Ever wonder why ITRs use PR3 heads and not a P72 head? Take a look at Alaniz Technologies website, they have graphs of modified PR3 heads vs. P72, the ported PR3 heads flow better through the midrange and up top. Anyways, it would be best to go with bigger pistons if you have the motor apart, otherwise, if you already have a full GSR, keep what you have and build that.

 

WTF!
I asked this exact question and got no replies. One day later, two topics about the same questions pops up and get replies.
What's wrong people.

 

thanks guys!! yea i have a b16 right now, but i got a really good deal on a full gsr motor. so i guess i'm going to switch the head.

 

don't be an ingrate!

 

I can if I want to.

 

I know!!!! what's wrong with people these days. Every one thinks that this web is for competition. Man I give this web site a

 

AzSi22 or anyone: i'm also starting out with a b16a with bolts on and was thinking to get a gsr block. my question is: can i still use my existing 00 SI tranny or do i have to get a gsr tranny also? is the ratio on the SI tranny better for this setup? this is for all motor application with upgraded cams soon. thx.

 

Your tranny will work great... they are the same as gsr trannies, just diff gears.. yours will be better for allmotor anyway..

 

Id say stick the b16 pistons into the gsr block.. And put the gsr cams into the b16 head like one other person said.. That would be a decently strong setup.. Otherwise just stick with the whole gsr swap, and sell the b16..

 

Imagine if you added CTR/ITR valve train, adj. cam gears, I/H/E, and larger TB. This engine setup with a LSD in say, a crx, would be MOST bitchin'!!!

9,200 rpms with this setup would be a VERY fun canyon run!

 

[QOUTE]
Imagine if you added CTR/ITR valve train, adj. cam gears, I/H/E, and larger TB. This engine setup with a LSD in say, a crx, would be MOST bitchin'!!!

9,200 rpms with this setup would be a VERY fun canyon run! [/QUOTE]

thats my setup waitin to go in my car + a 4.785 final drive+ CTR pistons,int. man.&cams

 

I've just aquired a B18C which I'm planning on running 12.5:1 compression, with JUN head. Now that should be a fun motor. I'm debating about running 84mm pistons and sleeving the motor. We'll have to wait and see.


[Modified by advanracing62, 1:28 PM 11/30/2002]