Westie

hey guys, would it be possible to make a 1.8ve by using the crank etc etc outa a
sr18de?, iv gt a 16ve and was *** wonderin if this **** be poss, or am i *** talkn
crazy

thoughts and feedback much appreciated

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Taiden

I don't know if you can do that.

I know you can throw in SR20DE crank (need correct rods and pistons ***) to get a 2.0L motor.

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Andreas Miko

SR18DE and SR20DE crank are the same.

SR18DE 82mm pistons and SR20DE 86mm pistons.

Here is the problem the SR18DE piston is to small and the valves of the VE would touch the deck of the block and you would bend the valves

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Westie

hmmm, i thnk i prefer my valves to be un bent lol, o wel, was *** sumthn ta thnk bwt,
cheers for the help

Ricer_X_01

well andreas you said the sr18de uses the same crank as the sr20de, so i would assume the rods are the same as a sr20de also? so he could use his sr18de crank and rods to stroke his sr16ve to a 2.0, i think thats what he was asking, but he assumed the sr18de had a shorter stroke, instead of a smaller bore. not to do a head swap which i think you were thinking?

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SeenSense

If you want an sr18ve yes you can get a bigger crank; but as everyone said the cranks are the same. Andreas said the pistons of the sr18de are smaller therefore the answer to your question is no. If you wanted to make a sr18ve you need 90mm pistons(sleeve block) or a bigger crank(you would need to calculate size)

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Andreas Miko

SR18VE is simple.

Use SR16VE block
Sleeve block for 90mm pistons.
Use SR16VE crank
Use SR16VE rods.

This is a no brain operation. Send out the stock SR16VE piston to J&E, tell them to up size the piston from 86 mm to 90 mm. Make sure to tell them not to change the size of the dome to compensate for the larger piston to keep the same compression. Tell them you know what the compression is with the sock piston which is 11 to 1 compression and you want the piston to be 11.8 to 1 which is about what the compression will be with the upsized SR16VE piston at 90 mm.

Andreas Miko

Below is his question

His title for this thread is SR18VE. He clearly states that he wants to make a SR18VE in his post above not a SR20VE. As stated by me he can not do so by using SR18DE parts as the piston bore is way to small.

A SR18DE head is alot like a SR20DE head with a vew changes.
1. SR18DE head has way smaller valves so not to hit the cylinder walls of the 82mm bore.
2. SR18DE cumbustion chamber is alot smaller to make up for the smaller motor to get the right compreshion.

Westie

hey thanks andreas, man u no a sh*t load bout these engines, nxt question, hw much i gota save up ta aford this lol, thx again man

broke ass SE-R

how about sr18 or sr20 crank, and just keep the stock sr16 pistons, then you would have an sr20ve lemme know if im wrong

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anomaly

probably wouldnt be the greatest idea, compression might be too high for pump gas, when considering the sr16ve pistons with the 86 mm stroke (sr18/20de crank) but it would net you the 2.0ve

Westie

um, do you guys not understand that i was not wanting to make a 2L ve motor, but infact a 1.8L ve, does the title of the thread not indicate this properly??? besides andreas has already answered the question i originally posed. I dnt know *** the highest octane rating of your fuel in the states is anyways but over here in new zealand the highest we can get is 98 octane, which is pretty high for pump gas

McCoy

Westie, how octane is calculated in the US verses most everywhere else is different... just for your reference. I know there are a couple of posts on the forum that talk about it, it would just require a search.

Also, why are you so excited about having an SR18VE, just to be different?

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Andreas Miko

This is in US money

Cost SR16VE engine $1200
90mm CP pistons $500
Sleeved 90mm block $1000


I think this is a great setup and with the quick ration SR16VE gear box this should be one hell of a 9,500-10,000 RPM motor

SeenSense

The problem is finding a SR16VE motor when more money os made parting them out. I feel it would be interesting to rev to 10,000K.

SR20Turbofreak

nevermind

markbuts3

98 RON is not 98 octane.
The MON is probably around 86 so that would give an octane rating of (98+86)/2 = 92.

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Westie

Yes thats exactly y, 2 of my m8s already hav 2l ve motors, one a stock standard 20ve the otha a conversion from a 16ve

haha, this is no problem at all as i already hav a 16ve in my 97 vz-r pulsar, this is the factory engine for that car, straight from japan

hmm, an interesting proposition

DeNismo

Can I increase bore of the sr18de from 82.5 to 90 ? sleeve of course! how abou cooling?

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Andreas Miko

Yes you can. The SR blocks are the same so there is no problem