Alfaworks 2.0L Stroker Conversion Build - Alfa Romeo 4C Forums
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post #1 of 14 (permalink) Old 04-18-2019, 09:50 AM Thread Starter
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Alfaworks 2.0L Stroker Conversion Build

Gentlemen,
I'm starting this thread regarding Jamie's 2.0 L stroker build. Once Jamie provides complete kit price with "Loyalty Discount" wink wink, the plan is to purchase in the next few weeks. Below are the parts required for the build:

Crankshaft
Forged Connecting Rods
Forged Piston
Cam Shafts
Cylinder Head Exchange (Port and Polished)
New Headgasket
Rigs and pins and Studs
Carbon Kevlar Clutch (Already purchased)

The goal is reliable 425bhp and similar torque. As Jamie suggested that anything beyond this figure, the transmission will start to disintegrate.
The larger cc will make the motor more reliable using less boost pressure to achieve targeted bhp.

Once all the parts are received, will start the build process soon afterward.

Looks like Jamie is also working on strengthening our tranny and other goodies related to the Transmission. Maybe a gated manual !!!!!!!

I will log every step including great pictures.

BTW, people with Jamie's Race ECU, he will have an updated firmware for us to download next week. So watch for his update.
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post #2 of 14 (permalink) Old 04-18-2019, 12:04 PM
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You go Nimo
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post #3 of 14 (permalink) Old 04-18-2019, 12:16 PM
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Can’t wait for the updates 🙌. Hopefully it will have more pops n crackle on deceleration 🤗
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post #4 of 14 (permalink) Old 04-18-2019, 01:07 PM
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No no no.... Just put in the Sadev Sequential that they installed in the Giulietta TCR race car. That should work relatively easily, fudge a manual.
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post #5 of 14 (permalink) Old 04-18-2019, 02:21 PM
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Nimo....finally some one will go this route. Sounds like the way to go for power and reliablity. Looking forward to tests and reviews.
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post #6 of 14 (permalink) Old 04-18-2019, 03:06 PM
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If you manage to make 425 BHP from 2.0L that would be a fair bit more than the 187.5 HP/L from the Bugatti Chiron and the somewhat less impressive MB CLA 45 AMG (which also produces 187.5 HP/L). Fingers crossed but 212.5 HP/L is a tall hill to climb.
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post #7 of 14 (permalink) Old 04-18-2019, 07:32 PM
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Quote:
Originally Posted by MidLifeCrisis View Post
If you manage to make 425 BHP from 2.0L that would be a fair bit more than the 187.5 HP/L from the Bugatti Chiron and the somewhat less impressive MB CLA 45 AMG (which also produces 187.5 HP/L). Fingers crossed but 212.5 HP/L is a tall hill to climb.
There are currently 40-50 VW Golf R Mk7 cars in the UK running 500-600bhp on a stock 2.0L engine (with a bigger turbo), giving 250-300bhp per litre. Almost all are running the stock gearbox (with a remap). Most are reliable. Modern motors are surprisingly robust. Squeezing 210-220bhp per litre from the 4C should be easily doable.
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post #8 of 14 (permalink) Old 04-19-2019, 02:08 AM
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Gated manual?! That sounds awesome!
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post #9 of 14 (permalink) Old 04-19-2019, 08:19 AM
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Can you please test the car in the current form (with only 360 hp)? We are anxious to see your feedback. Maybe at least few month... 🙂
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post #10 of 14 (permalink) Old 04-19-2019, 06:46 PM Thread Starter
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Quote:
Originally Posted by cipsony View Post
Can you please test the car in the current form (with only 360 hp)? We are anxious to see your feedback. Maybe at least few month... 🙂
I drove the car last weekend and during one spirited drive, I noticed that once you rev past 4600 rpm the car pulls really hard and in every gear. The car feels faster and pulls hard to redline. Before you would hit a wall once you pull hard on fourth but now the wall is no longer there. It just hauls ass and keeps pulling. This should be great on straight line and on tight cornering, I do notice better planting and just feels tighter. The rear control arm upgrade was a great investment along with Nitrons. I can't wait till I test this on the tracks and dial in the suspension settings.

I think the car will be scary fast at around 400 hp. Remember, my 4C spyder weighs just over 2200 lbs.

BTW, anyone upgrading to Transmission cooling, the whine from the oil pump is super annoying and loud but if your tracking it's great insurance.
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Last edited by Nimo; 04-19-2019 at 06:50 PM.
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