Honda Engine Boosting...

[A790]

I am thinking of picking up an earlier style civic once my SiR is gone. I was thinking 88-91 CRX (if I can get my hands on a nice one), or a 92-95 hatch.

What motor would be best to boost? I was thinking a ZC would be decent to boost, but I'm not entirely sure. I've ruled out the B16 because of the expense and the compression.

[Superesc]

B18B. Might be a bit tight on the EF but EG should leave you a bit more space.

[A790]

Would I run into compressiosn issues with the B18B?

[Superesc]

B18B are 9.2:1 cr . Pretty low for a honda motor I say.

[7thgenvic]

why worry about boosting then! why not redo the internals and raise the compression to run around a 11.3:1! now that would be a nice jump!
and don't go SOC(single overhead)
ZC is a cheap fix tho!

[A790]

The problem is that I want a CRX, but I also want a turbo.

Put two and two together...

I see a lot of guys running turbo'd CRX', I just want to know which motor is going to respond the best to boost.

[Aleks]

B18B, or B20. These motors boosted give mad torque they are cheap, low compression and lots of guys love them for those reasons.

[Deetz]

To install a 1st gen B16 with 10.2:1 compression is big deal to turbo. I have dyno sheets of that engine running 7 psi on a T3 making 260 hp at the wheels.

The B18A/B or even B20 are also good, but don't have as good parts on them such as water pump, oil pump, oil cooler, and piston lubercation/cooling.

[Scat]

Originally posted by Aleks
B18B, or B20. These motors boosted give mad torque they are cheap, low compression and lots of guys love them for those reasons.

Those are for sure your best options

[A790]

What would I be looking at in terms of cash to put in a B18 or B20 and then boost them (relaibly)?

[Scat]

Originally posted by A790
What would I be looking at in terms of cash to put in a B18 or B20 and then boost them (relaibly)?

If your happy with running fairly low boost you can stick with stock internals and still be quite reliable. You should look into injectors and some ecu tuning though. Just find someone that is willing to make you an exhaust maifold and weld all your piping, and then find a suitable second hand turbo and intercooler. That is if your looking to keep the project on a decently low budget.

[white rice]

okay i have a crx and i put in a b18a and i built a turbo for it as well and ther is lots of room for it you just need to use your head when buiding the thing.

b20 as thin piston sleeves so i say no boost for that motor, and it has a pretty mad r/s ratio.

[youngbex]

Originally posted by Aleks
B18B, or B20. These motors boosted give mad

torque they are cheap, low compression and lots of guys love them for those reasons.

[Promart]

so why not go b18c1 and boost off that motor?

[Aleks]

You can and it will give higher power given similar setups. The thing is it's a lot more expensive to buy that motor. It's all about how much you want to spend.

[A790]

Originally posted by Promart
so why not go b18c1 and boost off that motor?

Mucho dinero!

I'm thinking that the best candidate is a B18a, yes?

[89coupe]

I've got a friend who has a B20 and a B16 for sale. He just finished doing a Dart B20 conversion on his car and has two other blocks that are for sale now.

He goes by turbosir on my boards and I think coolsir on these boards.

[buh_buh]

Originally posted by Deetz@CustomAuto
I have dyno sheets of that engine running 7 psi on a T3 making 260 hp at the wheels.

I'm gonna have to call on that.
I don't think a T3 is even capable of making 260whp let alone at 7psi. I've seen b16s make less than that with bigger turbos at higher boost levels.

[rage2]

Originally posted by buh_buh
I'm gonna have to call on that.
I don't think a T3 is even capable of making 260whp let alone at 7psi. I've seen b16s make less than that with bigger turbos at higher boost levels.

T3 60 trim can do 260whp fine. 7psi is possible, remember, the b16 can rev...

[buh_buh]

yes I'm aware a Super 60 T3 can do 260whp, but the 7psi part is what I don't believe. Just wanted to clarify.