ok guys here it is proof

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

i will post some more pics tommarrow

Post by **Structure240sx** » Tue Oct 28, 2003 8:55 pm

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

here is some more pics enjoy

an aluminum box, what could that be for ?

this is what its for

those holes in the bottom of the manifold are perfect to tap for nos foggers

Post by **duckman240sx** » Tue Oct 28, 2003 8:55 pm

ok but say u have the time wouldnt it be better to use a de block with new sohc pistons , and instead of milling them becuz thats what i heard u have to do , just put valve reliefs in the pistons and then ur set, wouldnt that be better, whats the advantages of the sohc block, and smug u didnt have ne valve clearence problems with just throwing the de head on , also the earlier de heads should be the same, they would work right

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

the erlier heads should be the same so i dont see a problem , and i didnt have valves in the head whan i did the test fit , but i put the engine at tdc and used a pencil and i put it down the valve guide then marked at the top of the valve guide , then took the pencil and put it next to the valve and it had plenty clearance , it was almost to the groove on the valve where the keepers sit , so the valve would be able to go down as far as the keepers befor hitting the piston , but the valve is bigger on the bottom but it should have plenty of room i would just look out if you have aftermarket cams,

and as far as the advantages of this would be for the inexpeirenced people that dont want to deal with the bearings, rings ,down time , just beable to through a bottomend in and change the timming chain, sounds alot easier to me ,

Post by **Structure240sx** » Tue Oct 28, 2003 8:55 pm

does sound alot better. i will be doing this to a car before or after the winter most likely after. im picking up an 89 240 tomorrow hopefully as my new daily and i have all the dohc parts needed except for the timing chain kit. one thing im wondering is what would have to be done about any fuel and tuning issue if any

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

for the fuel thing i was going to get some stock sr20det injectors off of my friend and just fine tune with the afc

Post by **Structure240sx** » Tue Oct 28, 2003 8:55 pm

i figured that would be enough. what about a walbro pump? and will the stock pistons and rings be able to hold up with 11.7:1 compression for a while?

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

i have an msd in-line fuel pump , and i think the rings would be fine high comp isnt as hard on them as forced induction

Post by **Structure240sx** » Tue Oct 28, 2003 8:55 pm

is there any point to adding a fuel pump with stock injectors and not rasing the fuel pressure?

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

not really thoes injectors maxed out your stock pump should beable to handle just fine , but when you get into the higher inj. sizes you will need to flow more fuel not nesseceraly psi but volume .

Post by **absolute** » Tue Oct 28, 2003 8:55 pm

hey I have a question about the comp ratio, doe sthe ratio just go from 8.5-6 to 11.7:1? how does that happen, excuse my ignorance. See I'm interested in running a turbo setup eventually, but in the mean time I wanted to raise my horse power as much as possible on motor without raising the comp. I have a friend thats giving me a de head and I have an e, but right now im taking the head off to change the headgasket thats why I was asking

Post by **deviousKA** » Tue Oct 28, 2003 8:55 pm

The bore and stroke of the ka's are identical. The reason the compression ratio is raised is because ka24de combustion chamber volume is much less (45cc vs. 60+cc of ka24e). The ka24de pistons have more dish volume than the ka24e.

Post by **duckman240sx** » Tue Oct 28, 2003 8:55 pm

ok just by doing that what u think u should come to around with just the head swap no p&p or custom intakes or h/i work

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

with some good tuning you could almost pull off 190ish , its really depending on fuel octane , injector size , tunning capabilities , i'd bet a bigger maf and throttle body would make a dramatic difference , b/c you can raise the comp , big cams , p&p , but if you dont allow the motor to breath more your not reeping the full benifits of head work , that is why im making a custom intake box so i can slap a monster throttle body and maf on there .

Post by **duckman240sx** » Tue Oct 28, 2003 8:55 pm

190ish to the wheels right, o ya i know, u would have to totallty upgrade the whole intake and exhaust but i was just wondering on what just the higher c.r. would gain, i was looking into it and the q45 mafs looks good they say up to 500hp i think that would help a whole lot, and i like ur custom intake its sweet, but now u need an awesome header since i havent really heard that the hotshot is all that great,

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

what is that ka24e outta the early hardbody? because i know there was no 88 240. It was when you put the DE head on you get 11.7:1 compression?I am really impressed with the work you have done, good job

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

thanks , the motor is out of and early 89 240 but im guessing they are all the same before late 89

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

smug510 wrote:
Originally posted by fogleroller "]Wow, this is great information.

On a SOHC car 89/90, would you have to do any re-wiring or anything?

I am very interested in seeing the finished product.

Hey smug510, do you have a website? [/QUOT

this will only give you 11.7.1 comp if its early 89 , i belive the late 89s came with like 8.6.1 comp , as for the wiring i will have to look into that , i would think you be able to just change injector plugs and the temp sensors plugs and that stuff ,because you can choose which dist to run , its definitly something to look at , well thanks for the replies guys im glad i can open new options for you and i wil see about putting this thing in my car , maybe when i get tired of maintaining a turbo car i will go all motor again ,but good luck with your projects .

Hey you said this will only give you 11.7.1 comp if its early 89 , i belive the late 89s came with like 8.6.1 comp , did nissan change something in 89 i thought all the ka24e's were the same, and do you have a web-site??

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

sorry no website , but they did change pistons in late 89 , instead of having 9.1:1 they changed to 8.6:1 why i dont know but that doesent mean it will not work on thoes late 89 motors , you will just have like 11.2:1 instead of 11.7:1 , but i would really like to put this in my car , i have to do a comp. test on my sohc tomorrow and if there is something wrong im going to put this in, but i need a good deal on another dohc head , i want to finish my p&p job and have this head to build for when i build my dohc block , so if anyone has a head they want to get rid of for a decent price let me know , then we can see what this thing can do

Post by **Structure240sx** » Tue Oct 28, 2003 8:55 pm

i have two heads sittin in my garage. one off my old motor that was in great shape except for the ring lands hehe email me [email protected] i have a great idea for a good deal

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

yeah i def wanna see what up with it, cause when i saw this i was reallly really thinking about it

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

anything new in your swap??

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

sorry bad news kind of , i got my sohc running so the high comp is going to be delayed until i blow up this motor or i get another datsun , so i will keep you guys posted on whats goin on

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

You got it running stock or with the DOHC head??

Post by **smug510** » Tue Oct 28, 2003 8:55 pm

my sohc turbo , i was having ignition problems , so i relaced the wiring harness , ecu , maf, plugs , wires, cap , rotor, and it turns out it was the msd the whole time , instead of the msd just quiting it just sparked whenever it wanted , and it is brand new , so after all of that i decided to run this motor mfor a while

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

oh ok i c

Post by **DbD** » Tue Oct 28, 2003 8:55 pm

well just go and but another 240 and swap in the new hybrid motor hehehehehehehehe

If you want to

Post by **Sil240** » Tue Oct 28, 2003 8:55 pm

i might try it when i get my other chassis and if the bottom end is good

Post by **tapdeznutz** » Tue Oct 28, 2003 8:55 pm

yeah keep up posted. got my attention too

ok guys here it is proof

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