Getting 120whp out of L20B

[Stoffregen Motorsports]

Well I don't want to take shortcuts I would like to do it right, , you guys don't understand, my datsuns are my life, inhave nothin better in my life...

It sounds like you've getten dealt a shitty hand. I went racing instead of college. That's where I learned all my engine skills. It took me until I was 28 to get back in school, but I got a degree, finally. You are not alone. You have a whole bunch of friends here, as long as we're talking about Datsuns, we have something in common.

 

I suggest you go back through and re-read all the comments posted here. We are trying to get you pointed in the right direction, but it doesn't seem like you know what you want yet.

 

If you don't have a budget, per-se, then you should at least think about what you want to do with the car. Go fast? Go really fast? Race? What kind of racing? Are you willing to deal with tuning issues like if you had dual carbs or turbo? How often would you expect to have to work on the engine? If you can answer these questions, the answers may lead us to one motor or another.

[datzenmike]

Also will this car be your transportation???. If so it will have to be reliable and drivable at all times in all weather. A full on race car is undrivable on the street. Decide the end use first and build accordingly.

[scooter]

look for the nasty ass lz23 build on here.

 

it was ALOT of work but its a real stump puller! its cammed a lil wacky for the street, but I like things a little bit wacky.

 

next refresh its getting different cp pistons and 6 inch rods. I have custom pistons in it right now, but just on arp bolted l20b rods. its also completely balanced and feels smooth.

[Z-train]

2003 common rail diesel, no cat, no EGR, 21 mpg.

2000,been out for a visit with Gale Banks. I'm putting the tank pump kit in it today. Similiar MPGs-I just can't keep tires on it.

[tubbedbaggedstockfloored65]

Thanks fellas, and It probably won't be my daily driver, but I would like to be able to get in it and hot rod around town or take the old lady out for drive in movie and a car , meet or two once a week if I wanted to

 

 

 

Tell you truth I don't know enough about turbos to tune one, and u said that's expensive, I'm not rich,

I just want to build a motor that doesn't require any more machining that bored and honed , I' don't want to have custom crank or custom pistons made,

I want the beefiest race motor I can that's somewhat streetable          

 

 

Ill have a nother ride for transportation but I still want to be able to get on it and show up a stock l20b friend in his datsun 620          

 

 

Ill sell my 65 tubbed and stock floored soon to be bagged custom frame datsun 320 and ill sell my 78 kc 620 4x4 and ill sell every th in I own , don't really care, nothin better to do or live for ,

What I need to do is find somone who has a block z22 first so I can go from there         

[datzenmike]

Where are you that you can't find one?

[tubbedbaggedstockfloored65]

I live in ferndale bellingham area

And I just haven't looked for one yet

[Stoffregen Motorsports]

Just to run around town and not a daily driver: Stock Z22 with an L head and a mild cam. Possibly dual carbs or even a Holley 2 barrel.  Weber DGV or DGAS would also be fine. 2" exhaust on a cheapie header with a turbo muffler and  5" exhaust tip (for an extra 10hp).

 

How about a KA swap? You can get a donor truck for around $800 and the swap wouldn't take more than a week. My labor rate is $75/hr which would make it about $3000 to install. Add another $500 or so in parts for odds and ends and you've got a $4300 EFI 2.4L 12 valve that is going to do everything you need it to.

[tubbedbaggedstockfloored65]

I would love a ka swap but dnt no if I could tackle this myself, and are you tellin me I could pay you to help me ?

[tubbedbaggedstockfloored65]

A donor truck ? What kinda trucks ka24de in if I went ka mine as well do double cam

[tubbedbaggedstockfloored65]

Wouldn't the transmission m8unt and crossmember and driveline have to be changed ? ! I no redeye sells ka mounts for engine

[Stoffregen Motorsports]

Why do you need a KA24DE? Why not a KA24E?

 

Yes, donor truck.

 

Yes, I build custom cars and trucks for a living. I could certainly help.

 

Yes, I'm sure there would be some fabrication involved. That's what I call a detail. Don't fret about the details.

[Z-train]

Why do you need a KA24DE? Why not a KA24E?

 

Yes, donor truck.

 

Yes, I build custom cars and trucks for a living. I could certainly help.

 

Yes, I'm sure there would be some fabrication involved. That's what I call a detail. Don't fret about the details.

Pay attention to this.

[Stoffregen Motorsports]

2000,been out for a visit with Gale Banks. I'm putting the tank pump kit in it today. Similiar MPGs-I just can't keep tires on it.

My cousing works for Garrett turbos. They help Banks with the design and application of their kits. I should call my cousin and hit him up for some turbo love...!

 

I run 325/65/18's on mine because I was having the same problem. My last set of tires only lasted 17K miles.

[Z-train]

Have you done the in tank pump yet?

[tubbedbaggedstockfloored65]

A lot of it is just doubt,, don't beleive in my self enough,

[tubbedbaggedstockfloored65]

Well I always said if your going to do it do it, and I wanted to either build a l20 or z22 or ka24 to the hilt

[tubbedbaggedstockfloored65]

I could do single cam but I would much rather do ka24de , especially since I won't get rid of this truck and will end up puttin twin cam in later probably, ,

 

I just wasn't into ka since so many ppl have them, but then again they are good fuel injected little runners,

[tubbedbaggedstockfloored65]

so I need to find a nissan 720 thay have z22s right ? or nissan hardbodys have the ka's does it have to be from truck or car if it is a ka motor ? Truck right?

[tubbedbaggedstockfloored65]

I guess ill start lookin for donor trucks or complete motor and harnes and ecu set

[tubbedbaggedstockfloored65]

And stoffregen yea,I mentioned before you build some truly awesome shit, gotta ask what's the motor cost in your picture,? I no its one of a kind and ill nvr have one close to that but be cool to know what it costed and what it took ti build that

[tubbedbaggedstockfloored65]

Or do you not give away your secrets ?

[tubbedbaggedstockfloored65]

Even then if I put a ka in I'm gonna want to modify it for more performance

I dnt want a stock motor I want a motor built and above stock performance, .

My whole life I've never had anything nice or worth anything more than few hundred bucks,, that's why I wahted to beef up the l20 or z22 so its pushin a little more ooomph , sounds stupid , maybe, but you can't tell me any of you haven't built a motor becuase you wanted something different and a little extreme in some cases

[Z-train]

Even then if I put a ka in I'm gonna want to modify it for more performance

I dnt want a stock motor I want a motor built and above stock performance, .

My whole life I've never had anything nice or worth anything more than few hundred bucks,, that's why I wahted to beef up the l20 or z22 so its pushin a little more ooomph , sounds stupid , maybe, but you can't tell me any of you haven't built a motor becuase you wanted something different and a little extreme in some cases

Now it's time for you to stop posting,make up your mind and do the required research.Your topic title say 120 rear wheel HP.A KA will do this all day long with no drivability issues. I would have went this route but AC compressors won't fit a 620 frame.

[tubbedbaggedstockfloored65]

I have made up my kind that the first motor I get is what I will build ,, this isn't my topic, 120 rwp doesnt seem to be enough for me,,

Alright guys thanks for leads tip hints and knowldge , ill lt you guys know what I find