Honda Prelude Forum - PreludeDriver.com

I've been looking thru Ebay with no luck, Is there a place on the web that has performance products for Gen3 Preludes w/ B21A1 engines? I'm starting to get the things I need for my build, and I am in need of alot of parts.

There's more stuff available than you probably think, it's just hard to find.

For OEM parts, I highly suggest using www.hondaautomotiveparts.com. Hopefully you're in the US as they only ship to US addresses. They are by far the cheapest source of OEM parts for Honda I have ever found, and they're great to work with too.

For other parts, let us know exactly what you're looking for and we can help. There are good sites out there.

The other thing you need to know is that there are certain parts that are interchangeable from other Honda models. Pistons and rods from other Honda engines for example will fit in your motor, and often these are much easier to find.

So would a Exhaust manifold from a H22 fit on the B21A1, because there are so many available for the H22, seems nothing is available until the 92 or 4th Gen Ludes. I would like to find a turbo manifold ( I would like to find a whole turbo kit) but have yet to find anything for my 3rd Gen B21A1.

You know, I could really use the driver's side (Left?) fog light, I have the turn signal. I bid on a pair on ebay but was out bid. I'm only missing the left one do you know where I can find one? I have yet to find one, can you help?

90Luder2.05 wrote:You know, I could really use the driver's side (Left?) fog light, I have the turn signal. I bid on a pair on ebay but was out bid. I'm only missing the left one do you know where I can find one? I have yet to find one, can you help?

Fog Light at Honda Automotive Parts

It's the left on you need, number 23 on the diagram if just your lense is bad.

90Luder2.05 wrote:So would a Exhaust manifold from a H22 fit on the B21A1, because there are so many available for the H22, seems nothing is available until the 92 or 4th Gen Ludes. I would like to find a turbo manifold ( I would like to find a whole turbo kit) but have yet to find anything for my 3rd Gen B21A1.

A turbo manifold from an H22A will absolutely not fit.

I don't know of any complete turbo kits for 3rd generation preludes, you have to make your own. If you watch eBay long enough, you'll see a turbo manifold come up for sale eventually. In the meantime, start getting your other parts. The manifold should really be the least of your worries because it isn't too hard to make one if you absolutely have to.

spiffyguido wrote:
Fog Light at Honda Automotive Parts

It's the left on you need, number 23 on the diagram if just your lense is bad.

No its the Light assembly that I need, I have the back part that it bolts to. WOW! $122.98 or something like that. OUCH!

Thanks, I think I will try and find it at a salvage yard.

spiffyguido wrote:
A turbo manifold from an H22A will absolutely not fit.

I don't know of any complete turbo kits for 3rd generation preludes, you have to make your own. If you watch eBay long enough, you'll see a turbo manifold come up for sale eventually. In the meantime, start getting your other parts.

So go ahead and buy the tubing and elbows and things for a H22? If so, I'll probably have to fabricate them a bit to fit once I find the turbo manifold for the B21A1

If I were you, I wouldn't try to make any part of an H22 kit fit into your car. Kits are usually highly application specific, and you're bound to end up wasting some material or needed more material that way.

If I were you, plan out how you're going to fit the turbo system into your car and then buy just loose parts to make it work. Buying turbo piping, elbows and clasps is not hard. The basics of a turbo kit are for sale all over the place. Most speedshops will carry lots of piping and elbows that you can figure out how to fit into your engine bay the way you want it.

There are lots of different ways that you can fit the piping and elbows into you car, but no matter what way you do it the fit will be tight (there's not a lot of room under there, remember), so plan carefully. Use lower diameter piping if you have to. Not all turbos have to be run on 3" piping to work. 2.5, or even 2" piping is fine for some applications.

Planning out the piping yourself will likely be cheaper than buying a kit that isn't meant for your car in the first place.

If you're thinking you'd like to have an intercooler, be sure to factor that into your calculations right from the start as they take up a lot of space.

I have, I am buying a body kit that will give me a little extra room, plus I will be moving my battery to the trunk. I may be removing my air conditioning from the car to gain extra room plus I don't need it drawing down my engine performance.

Thanks again for all the advice.

Rob

You may also need to do away with the front motor mount. If so, be sure to make the rear one 'solid' so that the motor doesn't jump around too much.

Really? Wow wouldn't that be kind of a bad idea due to having more horsepower and with that I am sure more torque?


Also, I have been doing a little bit of research on turbos to see how they work. Do you know of a good site that kind of illustrates a turbo system and shows how they work.

I've been told the best system for my 3rd Gen would be a T4. I am upgrading the lower half of the motor pistons and rods, so I can deal with a bit more horsepower. So would 15 pounds of boost be a reachable goal?

If you can keep the motor mount and still have the turbo fit, great, keep it in there. Otherwise, you should be fine with just the rear and side ones.

Both wikipedia and howstuffworks have good descriptions of Turbo functionality.

I've heard of guys going with both a T3 system and a T4 system on a Prelude for their turbo. It's good that you're upgrading the internals. 15 pounds is a lot of boost. The higher the boost, the more you'll have to tune very carefully to avoid detonation. I have heard of people getting 15 pounds of boost into a Prelude, but it's not easy. A car running that much boost will have horrid lag as well, and will really only be practical for use on a drag strip. If I were you, I would try for a well tuned 7 to 10 pounds so that you don't sacrifice reliability as much. At 7 pounds, you'll still make a lot more power.

Yeah thats sounds like what I want to gain from adding a turbo. I still want this car to be an everyday driver. Thanks again

LSD Motorsports makes turbo manifolds for 3rd gens. You have to call them.