Stroking my E15

Dean GXE · Apr 24th, 2003, 06:27 AM

Stroking my E15
This is a great forum. Reading these posts make my sentra a lot more fun.

I own a 1988 Sports coupe fitted with an E15 engine. The original E16 broke a timing belt and had to be scraped. Here in South Africa the Sports coupe is quite a rarity and turns quite a few heads.

I have heard that the E15 can be stroked to 1700cc using an E16 crank and pistons. I would like to do this conversion but I cannot figure out which conrods to use. Any advice?

Also what does a stroked E engine perform like. Fast acelaration? Increased top end ? Noisier? (I love my noisy Nissan)

I also have set of side draught webers waiting to be fitted.

Cya

Myetball · Apr 24th, 2003, 07:16 AM

I believe you would use the E16 rods, check out this thread.

http://www.nissanforums.com/showthre...threadid=20570

fastpakr · Apr 24th, 2003, 08:21 AM

You'd have to modify the E16 crank or also bore the block - the crank throw is the only thing that affects stroke so if you swapped in an E16 crank you'd only have enough stroke increase to turn it into a 1.6, not a 1.7. I hope that made sense...

RiceBox · Apr 24th, 2003, 08:28 AM

E16 crank and pistons would make your engine an E16, not E17. The only difference between the e15 and e16 is the crank. I'm not sure but the pistons might even be the same.

SuperSentra4203 · Apr 24th, 2003, 09:24 AM

Why is it the only newer motors you can find for the E16 or GA16i are a 1.5L format?

Dean GXE · Apr 24th, 2003, 09:28 AM

"1680CC Stroke Job
The crankshaft from this E16 engine will fit with standard E15ET rods and custom pistons. These pistons are required to prevent travel of the piston beyond deck height at top dead centre, an effect which will occur if standard E15ET pistons are fitted to the long-throw crank assembly.

Alternatively the standard E15ET pistons can be used with E16 crank and rods. E15ET pistons in this application will require a crown shaving to shorten the distance from crank centre to TDC, again to prevent deck height penetration."

I got this info here :http://www.n12turbo.com/mods/e16stroke.htm

Myetball · Apr 24th, 2003, 03:46 PM

I think what that one is talking about is stroking the E15ET with E16 crank/rods. Basically the E15ET and E16 share the same rods. So basically that is just using the longer stroke E16 crank.

As for the non-turbo E15, the rods are longer than the E16 and E15ET so using the E16 rods, crank, and pistons should work.

We really need blownb310 to jump in here with his expertise.

Crazy-Mart · Apr 24th, 2003, 05:13 PM

here you go with the actual Specs taken from the nismo catalogue....

E15(t) crankshaft 3.23"
E16 crank 3.46"

Conrod E15 5.53"
Conrod E15et/E16 5.41"

As for piston size they should be the same.... if you want to perform with those thing i would suggest using the e15 bottom and getting yourself a good camshaft youll have a happy rev engine !!

As for getting a miss match of piston i wouldnt because the pin changes position from a model to another EG:
e16 crank e15 long rod + e15 piston (deck height problem)

the only one i could think that could do somethin is the e16 crank and rod with e15et piston with sahving of the crown... about 8 mm and some valve relief on the top than and really mild cam if not stock, will get you high compression (???numbers wich i dont know ?? makes me think of the E16 though...) and nice bottom end...

maybe higher with the E15 with the E16 crank with some nice forgies... custom of course...

fastpakr · Apr 25th, 2003, 09:44 AM

I still don't see how we're getting more displacement than any stock E16. No matter what piston you're using (as long as the diameter is the same) or what rod you're using, the displacement doesn't change as long as the crank throw is the same.

Crazy-Mart · Apr 25th, 2003, 05:35 PM

displacement wont change but the comp ratio will.... the only way to change the displacement is longer stroke and larger piston...

fastpakr · Apr 25th, 2003, 05:36 PM

So where is 1680cc coming from? I agree about the C/R BTW.

Crazy-Mart · Apr 25th, 2003, 05:39 PM

the crank.... when you start from an E15et.... you have the short rod and short crank.... wich isnt the same as the E15 (short crank and long rod) wich here would probably change the comp ratio.... you need the short rod, long crank + costom piston (pin higher) to get the 1680cc stroker

fastpakr · Apr 25th, 2003, 05:40 PM

Maybe I'm missing something... I thought all of this was in reference to using a stock E16 crank with the short rods and custom pistons?

Crazy-Mart · Apr 25th, 2003, 05:41 PM

ya think of it.... its still a 1600cc....... the piston must be oversized unit !

Crazy-Mart · Apr 25th, 2003, 05:42 PM

your right the E16 is the combination of the long crank and short rod already.... the thing missing is the forged piston....oversized...