mrwatsonn Posted September 10, 2014 Report Share Posted September 10, 2014 I'm new to datsun. I have a 79 620 fresh rebuild only 2000 miles. I'm looking for the right cam. And if a different head would be worth it. I'v read a little about the U67 head but unsure. Open to any advise to build somewhere around 200whp Has anyone seen or heard of an l20b supercharged? I'v been told I could use a thunderbird supercharger and just cut and tig weld the intake manifold Quote Link to comment
datzenmike Posted September 10, 2014 Report Share Posted September 10, 2014 I've combined your two posts. Where ever possible make use of posts you have already started. Quote Link to comment
laotsu Posted September 10, 2014 Report Share Posted September 10, 2014 from what I've picked up in the realm of cams the further you move from stock the less "streetable" the engine is. What is your desire from the engine? more power for around town? Tow bigger stuff faster? Race up the hill to check your crops? Make it down the quarter mile as fast as possible? Quote Link to comment
banzai510(hainz) Posted September 10, 2014 Report Share Posted September 10, 2014 Most dependable L20 would be stock the real ? You make alot of money? You got enough room to work on this?Dont want to find out you live in a apartment and will do this in the parking lot. You got tools? 200hp is alot for a L20, even turbo Quote Link to comment
Stoffregen Motorsports Posted September 11, 2014 Report Share Posted September 11, 2014 200hp will cost you. If you're building a naturally aspirated L/Z20 based engine, you're looking at $5-6K minimum. A L/Z motor in that horsepower range would barely be streetable. If you wanted a motor with 200hp and did not care if it was a L/Z you could get that for less and have more street minded manners. 1 Quote Link to comment
mrwatsonn Posted September 11, 2014 Author Report Share Posted September 11, 2014 I'm drifting, was looking for more power to get me by until I do an sr20 swap. How about supercharged ? And yes I have the tools and space to tear into it. Quote Link to comment
Nuclear Water Boy Posted September 11, 2014 Report Share Posted September 11, 2014 I'm drifting, was looking for more power to get me by until I do an sr20 swap. How about supercharged ? And yes I have the tools and space to tear into it. Save you money for the SR drive as is seriousely. I'm running a S14 SR20DE with Tomie Poncams and oh boy did those cams seriousely wake up the engine. Stock it's 165hp, current condition I'd say about 175/80 ish. I have a worked over head sitting in a box just screaming for work but the SR runs so nice I don't want to touch it. Ya, save you $$$$ for the SR. Quote Link to comment
banzai510(hainz) Posted September 11, 2014 Report Share Posted September 11, 2014 Supercharged? I dont think I seen one on Ratsun. YOu must want the over 100K a yr crowd. Go to the 510realm Supercharged? sound like you got your mind made up already. Supercharged it is Go for it Quote Link to comment
EastBay521 Posted September 11, 2014 Report Share Posted September 11, 2014 200hp will cost you. If you're building a naturally aspirated L/Z20 based engine, you're looking at $5-6K minimum. A L/Z motor in that horsepower range would barely be streetable. If you wanted a motor with 200hp and did not care if it was a L/Z you could get that for less and have more street minded manners. we have had a LZ24 go on a fun run with us about 250+miles and sitting through some traffic it was fine from what i could tell.i dont think the guy comes on here buti know he spent atleast 4k on it and claims its pushing 240hp at the flywheel and that fucker moved. only thing ive seen keep up head to head like that with a KA until about 4th gear that ka started pulling away Quote Link to comment
mrwatsonn Posted September 11, 2014 Author Report Share Posted September 11, 2014 Well i need some more power to get me to my Sr. Any suggestions on a cam? I might just try a supercharger sense i havent seen any yet. Quote Link to comment
tr8er Posted September 11, 2014 Report Share Posted September 11, 2014 If you are looking for dependable, you should definitely do what you haven't seen anyone else do. That right there is the key. Funnies aside, I can tell dependable is not your goal. You want power, and that's fine. I think a supercharger is a terrible idea personally, and I'd put money on you blowing the engine in trials, but that might get you to the SR in less time (more $ though). I'm running a stage 2 cam, 485 lift - 285 duration, weber 38/38, flat pistons, some other small stuff. I havent dyno'd, but I know I'm nowhere near 200hp. Yet, the car is so light (as is your truck), that it has way more go than is needed. If you gear it right, you should be able to drift just fine with the L20B without a supercharger. And you might even end up dependable. If you are lucky, you might fall in love with the L and never switch. Quote Link to comment
banzai510(hainz) Posted September 11, 2014 Report Share Posted September 11, 2014 Drift? just get this and youll be able to slide EZ http://www.phantomgrip.com/category-s/1848.htm Quote Link to comment
67_1600 Posted September 11, 2014 Report Share Posted September 11, 2014 I say just go with a blown 427 and call it good. So many people taking this thread seriously... Quote Link to comment
mrwatsonn Posted September 11, 2014 Author Report Share Posted September 11, 2014 HA! if anything I'll go Nissan not a junk Chevrolet. I was thinking the same thing about the supercharger. Ill probably just throw a cam in and Waite for the Sr. Quote Link to comment
mrwatsonn Posted September 11, 2014 Author Report Share Posted September 11, 2014 That's what I'm looking for! I'v been sliding around on a welded diff. Quote Link to comment
67_1600 Posted September 11, 2014 Report Share Posted September 11, 2014 HA! if anything I'll go Nissan not a junk Chevrolet. Who said anything about Chevy? Screw that pushrod crap, go SOHC... Quote Link to comment
Stoffregen Motorsports Posted September 11, 2014 Report Share Posted September 11, 2014 we have had a LZ24 go on a fun run with us about 250+miles and sitting through some traffic it was fine from what i could tell.i dont think the guy comes on here buti know he spent atleast 4k on it and claims its pushing 240hp at the flywheel and that fucker moved. only thing ive seen keep up head to head like that with a KA until about 4th gear that ka started pulling away Yeah, he spent 4K on the motor. Carbs these days are going to cost another $1-2K. The OP was talking rear wheel horsepower. 200 at the wheels is not a very streetable package. It is totally doable if you're expert at tuning carbs and don't mind adjusting valves and replacing broken valve springs every so often. I have had hig HP street L motors and I love 'em, but they are not easy to own by any means. That is, if you drive the way I do !!!!! Quote Link to comment
mrwatsonn Posted September 11, 2014 Author Report Share Posted September 11, 2014 Who said anything about Chevy? Screw that pushrod crap, go SOHC... there you go. I was contemplating a small block boss 302. Quote Link to comment
datzenmike Posted September 12, 2014 Report Share Posted September 12, 2014 HA! if anything I'll go Nissan not a junk Chevrolet. I was thinking the same thing about the supercharger. Ill probably just throw a cam in and Waite for the Sr. A cam won't get it done. On a small 2 liter you'll make small increases. It's a total package. Head work, lighter valves and springs, porting, gasket matching, exotic ceramic piston and combustion chamber coatings, header/exhaust, multiple carbs and or forced induction, lightened flywheel ... dozens of things that add a couple of hp here and there and work together to make more than separately. And then the other things that allow it to make more than one pass around the track like an oil cooler, deep oil pan with baffles, larger rad, larger oil pump, good set of gauges, tach, EGT gauge..... Just wait. 1 Quote Link to comment
scooter Posted September 12, 2014 Report Share Posted September 12, 2014 See "nasty ass lz23" I'm looking for 200-230 wheel out of that thing, and it comes up short im gonna hit it with the fogger. Now that it's running I can tell you it ain't no tractor like stock l20, I'm not divulging what that thing would cost to build, the parts wernt too bad, as much as any other hot rod 4 banger for say. But there was a HUGE amount of time involved doing everything. For a shop to build you an LZ it ain't gonna be cheap. Hainz is correct, the only reason I built mine is I can run engine machining equipment ;) Datsunmike is also right as usual. You have to do everything. If u have a fresh l20 I'd just put like a stage 2 isky cam and a weber 32/36 or a 38/38. Boost and cast pistons is like a dog fuckin a football imo. If your gonna ditch the l motor my vote is KADE or a ka with side drafts Quote Link to comment
skyshadow Posted May 10, 2016 Report Share Posted May 10, 2016 About that supercharger... 2 Quote Link to comment
racerx Posted May 11, 2016 Report Share Posted May 11, 2016 Either u build the L20 to get 200 hp or just wait for the SR. Either way its going to cost money. I know someone in cali. That can do the ka or sr swap for about 5,500. Then u will have to your brakes, suspension and other things because u will need to be able to stop with the planned 200 hp. If u just put a cam on the L20 then you will have to upped ur carbs so one things affects the other since everything is interconnected. Either way you will spend money and if u dont make a conscious decision then u will base ur decision on pure emotions. Btw, what is your budget? 2 Quote Link to comment
d510addict Posted May 14, 2016 Report Share Posted May 14, 2016 They make super charger kits for KAE's, way more torque than an SR and an easier swap. 1 Quote Link to comment
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