How Much Power Can a 1600 Dual Port Make? We’re Finding Out!

[clonebug]

[BFB]

Dont be a pussy, just say the word “ass”, no need to dance around it like your afraid your grandkids will hear you.

You do have a point about the IAT sensor and I’ll look into getting one thats non-permanent like the AFR meter i use so i can take it from one engine to the next ,and collect data on more than just one single turbo engine i built.
But i still and always will stand by my statement that you over exaggerate it and get people all tripped out. It’s dumb to think that 130F is the max IAT before catastrophic failure when plenty of boosted engines are run in ambient air temps of over 100 degrees ( me being one of them ). I understand you cant and wont try to grasp that as you live where ambient summer temps are 75F, as you previously stated.
I also know that the mere atomization of fuel will drop that AIT let alone W/I and intercooler , so it could be possible to drop IATs way down even in 100F ambient temps. I also know theres engines that dont run any forms of cooling other than fuel atomization and they dont have meltdowns. I also know engines ive built AIT’s arent 200* F because ive held the intake plumbing and even compressors immediately after flogging the hell out of them. Id say im sorry about your feelings regarding this, as obviously by your comments, adding something i said to your signature , and your whining on STF about it this really bothers you, but im not. i dont argue that IAT’s increase under boost i just challenge your factually made statements that anything beyond 130*F is thermal meltdown. Is there a point at 130F? I wouldn’t doubt that at all. But it’s really just the same as when people get told their engine will have catastrophic failure for running .070 or .080 deck, neither is true to that extreme. But a lot of other people just follow the leader without question ..


Also, yes, the motorcycle website with all the calculators is nice. Been visiting there for years too…
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"how am i supposed to torque the rear wheel nut to 250 ft lbs??? " - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
Most experts aren't.

[clonebug]

I never said 130* is meltdown......You keep bloviating about it getting yourself all lathered up when you have no clue what temps any engine runs since you have no record or logs.
I have logs from over 60,000 miles of turbo with and without intake cooling.

I don't run draw thu......It's so 80's.
I don't use a carb.....haven't for 12 years.......and will never go back.
I don't use a distributor......haven't for 14 years......and never will.

You running a clapped out, locked 009 has no relevance to my setup whatsoever....so quit trying to compare them.
You running a draw through carb more than likely pig rich also has no relevance to my system.
Most people reading what I post understand that I'm am talking about my setup and can relate to it. You, however.......can't seem to comprehend that small detail.

As far as my sig goes.........I guess the truth hurts....I didn't say it......someone else did......and the best part is your own words......"I'm so ignorant of EFI"........
And speaking of Whining......You're the one that had to PM me crying about the sigs.

For anyone else...........
Here is the link for the intercooler calculator so anyone can put in the numbers and see what I'm talking about.......

Scroll down just a little and fill in the blanks.

https://www.rbracing-rsr.com/intercoolers.htm

18 lbs boost
100 degrees inlet air temp.
"0" for intercooler efficiency

Answer is 242.19* F.

Subtract 100 degree for Venturi effect with a draw through and you can see the 142* F. I came up with.

Try 24 lbs boost.
95* F.
"0" efficiency

Comes out to 270* F.

That takes some serious W/I and/or intercooler to get down to ambient.
You can drop timing to 16-18 degrees and maybe control detonation but the air is so hot it can't hold near the fuel to make the power.
Cold air can hold more fuel and therefore makes more power for a given AFR.

I added W/I in 2013 and the Audi TT V6 intercooler in 2017.

In fall till spring I can see 87* intake temps at 24 lbs. boost.
Cold outside air, cold water/alcohol mix, and cold air going thru the intercooler will help a lot....in the summer...not as much.

Here is my digital dash with real time info.
Top right is MAT......that is my intake temps while cruising at 69 mph.

There's two ways to look at the bit of info.
1.) Some warm air is recirculating into the intake from the engine and off the exhaust pipes due to my filter placement.
2.) It warms the air for better atomization if it was a carb removing the need for carb heat. The turbo accounts for about 20* F. of intake heat since ambient temps were probably around 70* F.

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[BFB]

[oprn]

https://www.youtube.com/watch?v=Hq-irKBOUmQ

There is the conclusion of the matter. Proving once again that you can dumb thumb anything into oblivion. I had a gut feeling as soon as they made the decision to do a run with the fan belt off... that would be the end of the fun. The engine was still running well up to that point.
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Our cars get old, we get old but driving an old VW never gets old!

[NJ John]

After watching the newest episode. Maybe someone can have input on why the piston skirts broke?
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[vamram]

[Fun With VDubs]

[Fun With VDubs]

[Dan_Lockwood]

My guess would be excessive boost creating WAY TOO much force on the inexpensive cast pistons/rings. Just hammered to death is my guess.

I see the crank as described above also as a problem, but find it had to relate that to ring land failures.

Just my opinion and a newbie at best...

Dan

[Alstrup]

[Alexander_Monday]

[BFB]

[oprn]

[EVfun]

I have been wondering why they keep doing runs with the fan belt off. The first time I understand, to determine how much power the fan draws. Once you know why keep beating up on the engine? You can't drive it with the belt off.

Testing the full size pulley vs a power pulley, and perhaps even testing the Porsche generator pulley that is a little smaller would be interesting. Testing the power draw of the doghouse cooling fan vs the smaller cooling fan used through 1970 would be interesting too.
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[BFB]

playing devil's advocate, y'all do realize how many vw engines out there run the 1/4 & 1/8 with no cooling tins / fans at all? granted those engines do get some air movement but most are also a lot more engine than what this one was, and they have burnout & staging time too, so those guys probably run a lot longer & harder and on a hot ass track than what these guys doing a couple Dyno pulls are.
I wouldn't have run it without but I get why they were.
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"how am i supposed to torque the rear wheel nut to 250 ft lbs??? " - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
Most experts aren't.

[veedubcrazy]

[Fun With VDubs]

[Alexander_Monday]

What were the rings gapped at?
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Danth’s or Parker’s Law:
“If you have to insist that you've won an internet argument, you've probably lost badly.”

Alexander_Monday->What were the rings gapped at?
bedlamite->Almost enough.

[bedlamite]