Hi,

I've got a few questions regarding these engines as a possible power plant for a kit car. Any help will be appriciated.

Firstly, am I right in saying that the engine fitted to some of the approx 1991 spec CRX is the b16a Vtec engine?

Does this engine have the same engine mounts as the later 1.6 vtec's? What are the main differences in these engines and their tunability?

How heavy is the engine and gearbox? Does it have an iron or alloy block?

What do they rev to as standard and what rpm can the standard engine cope with?

If I wanted to get 200-220bhp out of one, what mods would I require, and what rev limit would be used? I anticipate and wish to use throttle bodies.

Any further info appriciated.

Thanks

 

Anyone?

Is this in the right forum?

Thanks.

 

1. I dont really understand what you're saying. They were in jdm sir's which are crx's.

2. I'm assuming you're talking about a jdm b16a. The differences between the jdm b16a and lets say a b16a2/3 are very minimal. Not sure about the mounts because I'm using hasport mounts.

3. NO clue how heavy it is. You could probably search and find out. It has an aluminum block.

4. I'm pretty sure they rev to 8200 stock.

5. There are so many possible configurations you could use I dont know where to begin. I made 162whp which is probably around 190ish bhp with ctr pistons, skunk2 intake manifold, aem cai, jg (edelbrock) headers, greddy sp2 exhaust. I also completely rebuilt the motor which might have helped. With ITB's, better header, and some cams I'm sure I could hit 200bhp no problem. The ITB's themselves could probably get to 200bhp alone.

 

Thanks for your reply.

The confusion over models is probably something to do with me being in the Uk!

So if I wanted to rev to say, 9000rpm and had the right cams to make power there, would the standard valve train, rods, crank and lubrication system cope?

Whats the advantage of the CTR pistons? Higher CR?

Thanks again.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rustydog &raquo;</TD></TR><TR><TD CLASS="quote">Thanks for your reply.

The confusion over models is probably something to do with me being in the Uk!

So if I wanted to rev to say, 9000rpm and had the right cams to make power there, would the standard valve train, rods, crank and lubrication system cope?

Whats the advantage of the CTR pistons? Higher CR?

Thanks again.</TD></TR></TABLE>

haha if you're in the UK I have no idea about the models of crx's or engines or anything really. I don't know if it would handle a lot of 9k revs without building it up. I know you would definately need a new valvetrain especially with cams that are making power in the 9k range. You probably would want to balance the rotating assembly and shot peen the rods. I'm pretty sure the stock lubrication system would be fine. But on the other hand I have no clue because I have not really researched revving to 9k with my engine since I only make power to about 8000 (stock cams). Another person would have to chime in to tell you more about what you could do.

Yes the ctr pistons raise the compression about a complete point. It is said that a point in compression adds about 10hp. I'm not sure if that's at the wheels or at the crank though.

 

Thanks again for your reply.

What is the compression as standard? Are the pistons a direct fit?

As you say, if you can make approx 190bhp with your spec, by adding ITB's and a pair of cams should see well over 200bhp I would hope.

I'll be rebuilding the motor whatever spec I chose, which would include balancing the bottom end.

Could you point me in the direction of any websites selling performance engine parts?

Thanks

 

Sine I guess I'm the only one helping you I think you should get a helm manual first. Try searching the internet for free downloads of them or else just fork over the $50 for one. I'd suggest getting one for your car and one for your engine. Unless the b16 comes stock in the car you're putting it in.

The ctr pistons are a direct fit or .25 over if your cylinder walls are out of spec. Of course you'd have to hone them to put them in.

Since it's been so long since I bought a performance part for my car I forget any websites for them but just try searching around for the best price. Take in mind however that most performance shops race cars so it usually takes forever for them to get you your parts if you even get them in the end.

The itb's will probably cost you a lot unless you have the ability to make them yourself. Just search around. Good luck on your project.