Converting 1.8 to 2.0, need some help... Options

[dlo914]

for this process what will i be needing to do and get? so far i only know the following: get a hold of 2L pistons, crank, rods, brain, and cylinders. or maybe bore out the existing cylinders to 2L specs, but then again this is my first ever engine rebuild/upgrade type of thing so bring on the help! cuz this noobie is open for help (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

[SLITS]

Rods, Crank, P&Cs, Heads, Complete 2.0 FI System (or change to Carbs).

or

Rods, Crank, P&C, use your heads with larger valves and use your FI system (prolly won't make same HP stock for stock due to the heads).

[qa1142]

I can tell you I am planning same conversion. I went a got a running 2.0L with wiring harness, EFI (LJet), and full block, exaust, everything.

I plan to go through motor (unless leakdown is really good. and then drop the whole thing in.

(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

[tat2dphreak]

something to consider... 96mm pistons can be had for about the same price or less, you can still use your existing 1.8 cylinders, this will make a 2056, and can still run on the stock Djet FI

one more thing... if you have the stock 1.8 FI(Ljet) you will need the WHOLE 2.0(Djet) FI setup, not just the brain.

you can use 1.8 heads that are opened up, but that will make fitting 2.0 FI tougher, personally, if you can find good 2.0 heads, it will be easier...

get Jake's VIdeo!! period, end of story... get it.

[Mueller]

QUOTE (dlo914 @ Jul 11 2005, 12:35 PM)

so then boring out the 1.8 cylinders shouldnt be done?

you can have the 1.8 bored to 96's, then you'd have a 1911...no need for new crank or rods...nice engine, had an L-Jet one and then converted it to megasquirt

[tat2dphreak]

QUOTE (dlo914 @ Jul 11 2005, 02:35 PM)

so then boring out the 1.8 cylinders shouldnt be done?

you can use 1,8 Cylinders, not 1.7 cyls though...

up to 96mm I have heard from Jake and many others the stock jugs are the way to go (other than Nickie$)

[dlo914]

what's the measurements on stock 2.0L pistons?

[Mueller]

QUOTE (dlo914 @ Jul 11 2005, 12:40 PM)

what's the measurements on stock 2.0L pistons?

94mm bore, 71mm stroke

[dlo914]

k now im confused one is saying i dont need 2L crank n rods and others say i do.... (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) would be nice for Jake to poke into the conversation... (IMG:http://www.914world.com/bbs2/html/emoticons/pray.gif)

[MartyYeoman]

Mike is right!!
I've got a 1911 engine with L-Jet in my car right now.
Lots of fun to be had.

[andys]

QUOTE (dlo914 @ Jul 11 2005, 11:27 AM)

for this process what will i be needing to do and get? so far i only know the following: get a hold of 2L pistons, crank, rods, brain, and cylinders. or maybe bore out the existing cylinders to 2L specs, but then again this is my first ever engine rebuild/upgrade type of thing so bring on the help! cuz this noobie is open for help (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

Can't say which way would be cheaper, but I have a *complete*, high mileage 2.0 for sale. That way, you'd have all the parts you need.....PM if you're interested in going that route.

Andy

[SLITS]

QUOTE (qa1142 @ Jul 11 2005, 12:33 PM)

I can tell you I am planning same conversion. I went a got a running 2.0L with wiring harness, EFI (LJet), and full block, exaust, everything. I plan to go through motor (unless leakdown is really good. and then drop the whole thing in. (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

You have D-Jet not L-Jet on that 2.0 (unless it was a 912E engine)

[anthony]

QUOTE

k now im confused one is saying i dont need 2L crank n rods and others say i do.... wacko.gif would be nice for Jake to poke

A 2L crank isn't required but it's cheap enough if you are tearing down the bottom end anyway. Here's what I'd do assuming a full rebuild:

Your cylinders bored out to 96mm
Keith Black 96mm pistons
2L crank and rods
heads done by Len Hoffman with the spark plug relocated to the 2L position.
One of Raby's split duration cams if L-Jet can handle it or a stock cam if it can't.
This will make a 2056cc engine.


If you aren't tearing apart the bottom end then just for 96mm cylinders, KB pistons, and having your heads done. That will yield a 1911cc engine.

[tat2dphreak]

QUOTE (andys @ Jul 11 2005, 02:46 PM)

QUOTE (dlo914 @ Jul 11 2005, 11:27 AM) for this process what will i be needing to do and get? so far i only know the following: get a hold of 2L pistons, crank, rods, brain, and cylinders. or maybe bore out the existing cylinders to 2L specs, but then again this is my first ever engine rebuild/upgrade type of thing so bring on the help! cuz this noobie is open for help  :) Can't say which way would be cheaper, but I have a *complete*, high mileage 2.0 for sale. That way, you'd have all the parts you need.....PM if you're interested in going that route. Andy

that would be smart... like a 'parts engine'...

1911 is not exactly a 2.0, which is why you are getting the different advice, I *think* a 2.0 is 1976(I can't remember the formula right off the bat)...

[dlo914]

QUOTE (tat2dphreak @ Jul 11 2005, 11:33 AM)

something to consider... 96mm pistons can be had for about the same price or less, you can still use your existing 1.8 cylinders, this will make a 2056, and can still run on the stock Djet FI one more thing... if you have the stock 1.8 FI(Ljet) you will need the WHOLE 2.0(Djet) FI setup, not just the brain. you can use 1.8 heads that are opened up, but that will make fitting 2.0 FI tougher, personally, if you can find good 2.0 heads, it will be easier... get Jake's VIdeo!! period, end of story... get it.

going w/ larger valves, how much would that range? say for the machine work n valves...

[dlo914]

at the moment ive got a line on a set of 2L pistons for free, 2L crank n rods for $150, machine work on the heads and rehone the cylinders.....but right now my budget is prolly around $500

[dlo914]

just to get this straight....i can just rehone the existing 1.8 cylinders and throw in the 2L pistons w/ new rings, and this will yield me a 1911?

[Mueller]

stock 2.0 = longer stroke, which has more torque

a 1.8 with larger pistons will be a shorter stroke motor and will have less torque (10ftlb's ???) but it should rev up a little quicker and have a slightly higer rpm (in theory)

both are nice motors, a "true" 2.0 will be more expensive since you have to buy parts you don't already have....

You can run the stock 1.8 L-Jet on a 2.0

done it twice...no problems at all.......

[Mueller]

QUOTE (dlo914 @ Jul 11 2005, 01:05 PM)

just to get this straight....i can just rehone the existing 1.8 cylinders and throw in the 2L pistons w/ new rings, and this will yield me a 1911?

no, you cannot use 2.0 pistons with that combo, you need the correct pistons to match the stroke of the crank and rods

[dlo914]

QUOTE (Mueller @ Jul 11 2005, 12:07 PM)

QUOTE (dlo914 @ Jul 11 2005, 01:05 PM) just to get this straight....i can just rehone the existing 1.8 cylinders and throw in the 2L pistons w/ new rings, and this will yield me a 1911? no, you cannot use 2.0 pistons with that combo, you need the correct pistons to match the stroke of the crank and rods

thanks for clearing that up, mike! (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) k for sure now im gonna go w/ the 2L piston, crank n rod, have the heads machined and refitted w/ larger valves, run the stock 1.8 FI system, and if i have any money left over get a cam...am i missing something?