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New L 28 Goes In The 1970

Diseazd

By Diseazd
in Engine & Drivetrain

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Diseazd GrandMaster Z

Diseazd

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Yesterday we dropped the new L 28 into the 70 Z! It has an F 54 block with the P 79 head.The beast was shaved .080, shimmed with a reground Stage III Isky cam! We used stainless swirl valves and SM needles. When we fired her up with open headers it sounded like Road Atlanta! Can't wait to get the new exhaust hooked up to feel how she runs. Guy

<a href="http://www.flickr.com/photos/14049800@N00/2491514066/" title="IMG_8681 by RVAE34, on Flickr"><img src="http://farm3.static.flickr.com/2339/2491514066_d58c275804_b.jpg" width="683" height="1024" alt="IMG_8681" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2491513550/" title="IMG_8679 by RVAE34, on Flickr"><img src="http://farm4.static.flickr.com/3008/2491513550_4be8d27560_b.jpg" width="1024" height="683" alt="IMG_8679" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2490697391/" title="IMG_8684 by RVAE34, on Flickr"><img src="http://farm3.static.flickr.com/2132/2490697391_5315f7518a_b.jpg" width="1024" height="683" alt="IMG_8684" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2605986529/" title="IMG_9168 by RVAE34, on Flickr"><img src="http://farm4.static.flickr.com/3261/2605986529_7ff1a99409_b.jpg" width="1024" height="683" alt="IMG_9168" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2605986129/" title="IMG_9166 by RVAE34, on Flickr"><img src="http://farm4.static.flickr.com/3213/2605986129_979ed659ec_b.jpg" width="1024" height="683" alt="IMG_9166" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2606814514/" title="IMG_9165 by RVAE34, on Flickr"><img src="http://farm4.static.flickr.com/3017/2606814514_eb2f0b4c31_b.jpg" width="1024" height="683" alt="IMG_9165" /></a>

<a href="http://www.flickr.com/photos/14049800@N00/2606814220/" title="IMG_9163 by RVAE34, on Flickr"><img src="http://farm4.static.flickr.com/3033/2606814220_61fd4d3d7f_b.jpg" width="1024" height="683" alt="IMG_9163" /></a>

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five&dime MenZor

five&dime

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I was over there helping out last night. It fired up on the first key turn!!!!! It sounds like a godzilla on steroids having a bad Monday "Look Look!!!! The creature is attacking" :) The whole car wants to twist when it revs. The revs are so fast as well. Makes me want a Z!!! At idle it lopes like a big block.

I have a feeling this car is really going to wake up now.

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Diseazd GrandMaster Z

Diseazd

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Doc built the head.....I did the engine. I'm also building a hot L24 for the 71 restoration. I've built maybe 15 or so L series motors over the years! I'd love to do a video if my son ZERO Z can do it (I can't) because this motor sounds like a million dollars! I just think the L series motor is awesome! Right Eiji?

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Carl Beck GrandMaster Z

Carl Beck

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It would be very interesting to get a wide-band A/F meter/recorder on that engine - then dyno tune it... Would be interesting to see if the SM's are too rich.... I've seen several reports that they are - but it would be good to see a direct comparison with supporting dyno runs..(on the same engine, same day, same dyno etc).

Everything sure looks great...

FWIW,

Carl B.

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Diseazd GrandMaster Z

Diseazd

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Carl I'm still running the stock needles but Doc says for the L28 the SM's will do better. I'll tinker with the two and post some results. This is the first performance motor I've built and let me tell you........it sounds like a million dollars! I'm modifying the 240z stock (MSA) exhaust by having the machine shop build me a downpipe flange and weld it onto the 240 downpipe (I hope the angle and pickup on the stock manifold are pretty close for the two). When I get it back, I'll be able to put her on the road. You can feel the muscle and rev in this engine........ even in the garage! Doc says it should produce 225 h.p. and be a 13.9 quarter mile. I've been in love with these cars since I got my first Z in 1970 and that certainly ain't going away! Thanks for all your help on the Forum and I'll keep everyone posted on this car and the 71. Guy

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Diseazd GrandMaster Z

Diseazd

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Steve Yes we drilled out the front for the mechanical pump(more reliable). All bolts are Nissan new....at least almost all. All parts are new or remanufactured. It ain't cheap to go that route, but it sure is puuurrrdy! The fuel rail came from Zeddsavers.

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