Author Topic: Twin Spark Cup & Enduro 156 Project  (Read 16063 times)

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warsch

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #210 on: October 21, 2021, 11:43:22 AM »
Damn 17x9. Did you have to roll the guards? What size tyre are you running? And thats 17x9 front and back?

Well, I got those phat rims from Sydney when I saw them on Gumtree. They were off some racing 156 GTA. Can't really pass rare 5x98 wheels. They absolutely don't fit standard 156 guards but I since got 147 GTA, so hopefully they'll fit. I guards there are just flared enough. I shall see soon.







Twin spark Alfas don't need wheels that wide, I think. Now, for the GTA they should be just right. I'll run same 17x9 on all 4 corners, though the front tires will be 245 and rears 235. Dang, it's about time I start the build threat of my own.

Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #211 on: October 21, 2021, 08:12:08 PM »
Damn that's wide. It's great consumer advice for a fellow twin sparker that 17x9s is too wide :D.

A great thread that you could start Warsch is potentially a PB In Car Video of Australia Tracks in the 156/147. Everyone can post up their PB lap footage from in the car with their car specs and people can compare lines. I learned the Bathurst line from the Lewis Hamilton challenge in GT Sport. Some wont share but this way people can see a good line before they head out to the track. Not sure if it will take off but happy to add to it once the lockdowns are over in Melbourne. And as Winton and Phillip Island are regional vic, probably won't be let out there for a while even though apparently we can fly internationally in november or December which makes perfect sense.
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Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #212 on: October 23, 2021, 11:58:23 AM »
Why you shouldn't get towing straps for a registered 156. Did the hole with just a normal drill end as dont have a saw.
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Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #213 on: October 23, 2021, 02:08:50 PM »
Me alfa ferrari
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Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #214 on: October 24, 2021, 06:53:09 PM »
Another weekend gone
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warsch

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #215 on: October 25, 2021, 12:47:10 PM »
It's good that people watch racing from a distance  :)

Though my car looks worse with all the paint flaky

Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #216 on: October 26, 2021, 07:39:22 PM »
It's good that people watch racing from a distance  :)

Though my car looks worse with all the paint flaky

Up close the wrap is like a rag tag quilt around corners and complex curves. It's easy to do flat surfaces but not so for curves by yourself so thankfully people watch from a distance 8).

After watching some YouTube vids, the vivid x wrap seems to be very forgiving which is what I would get next time round.

I also realized why the engine is called a twin spark! Bought 4 spark plugs, 2 went in and 2 were the wrong size. Yet both of the covers made that pop noise for a spark plug. So you need 8 spark plugs, 4 of each. It's a race engine!

In the first pic I was why does that make a spark plug pop noise :o
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Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #217 on: October 26, 2021, 07:41:08 PM »
Also on the side of the oil filler, one of them had oil on it due to previous spilling oil. Quick clean and good to go.
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Alfatango

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #218 on: October 26, 2021, 09:50:47 PM »
From wiki

Alfa Romeo Twin Spark (TS) technology was used for the first time in the Alfa Romeo Grand Prix car in 1914.[1] In the early 1960s it was used in their race cars (GTA, TZ) to enable it to achieve a higher power output from its engines. And in the early and middle 1980s, Alfa Romeo incorporated this technology into their road cars to enhance their performance and to comply with stricter emission controls.

I just thought it was some marketing stuff like fake bonnet scoops or advertising twin cams lol. Alfa wonderfully over engineer cars.
« Last Edit: October 26, 2021, 10:02:50 PM by Alfatango »
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warsch

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #219 on: October 28, 2021, 10:13:37 AM »
I'm still not sold on the twin spark idea. Most other brands had 150 hp out of 2.0 engines without extra spark plugs. Even Alfa's own JTS allegedly made 165 hp. Now this one I don't quite believe, as me and my friend dynoed our JTSs and got nowhere near those figures. So your average TS would be more powerful than JTS (say with 150kkm on the clock).

Craig_m67

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #220 on: October 28, 2021, 11:11:24 AM »
I'm still not sold on the twin spark idea. Most other brands had 150 hp out of 2.0 engines without extra spark plugs. Even Alfa's own JTS allegedly made 165 hp. Now this one I don't quite believe, as me and my friend dynoed our JTSs and got nowhere near those figures. So your average TS would be more powerful than JTS (say with 150kkm on the clock).

Twinspark is used for emissions in these engines, not HP

The JTS (when new) is cleaner (emissions), but then (like all the other brands), it soots up

Youíre average TS didnít make it to 150K km without the cam lobes wearing off or the selespeed confounding the average mechanic making the car an economic write off
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warsch

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #221 on: October 28, 2021, 12:00:53 PM »
I'd argue about TS not making it to 150kkm. Either way, we've dynoed two TSs with 200-300kkm and a couple of JTS with 140/260 kkm and TSs were heaps more powerful. The TS with 300km didn't have worn out cams. Never looked into mine, but I assume it's healthy too.

Selespeed is another issue, thanks to incompetent mechanics.

bazzbazz

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #222 on: October 28, 2021, 12:44:11 PM »
I'd argue about TS not making it to 150kkm. Either way, we've dynoed two TSs with 200-300kkm and a couple of JTS with 140/260 kkm and TSs were heaps more powerful. The TS with 300km didn't have worn out cams. Never looked into mine, but I assume it's healthy too.

Just out of curiosity, what type of Dyno did you use? A rolling road or accelerometer?
2004 Alfa 156 2.0 JTS Sportwagon (Patty)

warsch

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #223 on: October 28, 2021, 01:47:11 PM »
Just out of curiosity, what type of Dyno did you use? A rolling road or accelerometer?

Stationary dyno with rollers.

Though the data is backed up by our observations at QR and Lakeside.

bazzbazz

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Re: Twin Spark Cup & Enduro 156 Project
« Reply #224 on: October 28, 2021, 01:54:51 PM »
Selespeed is another issue, thanks to incompetent mechanics.

I wouldn't say incompetent, but more unfamiliar.

Many a mechanic with good intentions and trying to help out an unfortunate client have come to grief with selespeed units, not because of lack of skills, but just simply not having the correct diagnostic software and a lack of experience and  with the units.
2004 Alfa 156 2.0 JTS Sportwagon (Patty)