What L series is this?

[WishN4DaZ]

when you say bored over what do you mean?

What is actually involved in boring over a motor?

The only way i can see to turn an L24 into a 2.8L is by putting L28 crank and rods, and then "over boring" .12 inches.

that leaves the displacment at 2753 and with flat-top pistons and an E31 head your compression is left at 10.5 ( which is as high as you can go on pump gas 10.1 is fine just so you know )

with the more comman E88 head your compression goes to a 10.06:1 which is more workable and easier to maintain.

Matt

[240znz]

Over bore means taking your block to the machine shop and they will take money off you for enlarging the cylinder bores by a fraction. The result also means that you will need to buy matching pistons and a ring set to fit the new diameter.

Have you looked at doing the obvious??? Get a L28 block, fit a E88 head, mild cam, 6-2-1 or 6-1 header, 2 1/2" exhaust, EI, bigger jets for those great SU's and a ZX 5 speed box This is a very popular mod that many have tried and tested. Check out http://geocities.com/zgarage2001/engine.html

In reply to one of your first questions. A FJ20 engine was a demon 4 cylinder 2000 16v engine that was in the early Skylines. They made two variations... a NA version and a EFI Turbo version....a very strong engine that can be easily modded up to give impressive HP. But if you are thinking of this type of engine...then you may be better off going for a RB donk.

All in all...get a Z...drive it loads so you can get used to it and then as time goes by start to collect the bits you want...once you have it all then start your build. That is my intention.

A good place to start would be to overhaul the brakes, then suspension. More HP will not help your Z cane other cars around corners nor will it help you stop...build a good foundation first.

Just my 2p worth:rolleyes:

[WishN4DaZ]

i think im just going to leave it with the L24, i was thinkingf about the head mod he had on that site, cept doing it with an E88 head on an L24 motor, might be intersting.

I was trying to keep from doing an engine swap, internals were ok but im tossing ideas.

here is my plans so far.

L24 Block with L24 flat top pistons

E88 head with the mod described on a P79 head here (original compression 8.8 final compression 10.06 raise of 1.26 done to an E88 head on L24 with flats [ ESTIMATED! 1.26 increase also ] 8.76 + 1.26 10.02 ) with 1mm HKS gasket for a CR of 10.24

headers, exhaust, maybe a 5-Spd and Diff swap

but i guess time will tell.

Matt