Inlet trumpet dyno testing

[kpr]

does your engine bay not melt with timing that late?        Ive just ditched the stock triggers on my 20v   which are 24-1 vr in the dizzy.    now running 36-1 hall cam speed.    runs a whole lot nicer no other changes.  i do think the stock setup was getting pretty tired though as it spat the odd trigger error

[Roman]

It's not ideal, haha. 

But it's only at idle where there's a tiny amount of air and fuel anyway so total heat isnt huge I guess.

Definitely makes it a bit noisier...

Not very economical. Good Heavens.

[kpr]

ruthless,  would keep your feet warm in the winter i guess.  how about  some group n  cuts to keep the idle down

[kpr]

Heres another one on  intake manifolds.   on the gold junk engine i posted a pic of a page back

 

[ThePog]

Your stuff comes up on my yt feed all the time now. The vids are great, I like that you get straight to it with no wank.

I also like when you try out dumb shit.

[kpr]

Next video will have dumb shit 

[ThePog]

Perfect.

[cletus]

46 minutes ago, kpr said:

dumb shit 

 

Yes!  

If I had some time and skills and materials to send you stuff to test it would be interesting to see results of things like

SU on a log manifold to see how much power it would lose 

Or see how much power it could make with something outside the box like a 650 holley 

[Yowzer]

That's quite the supercharger.

Two leaf blowers on the bonnet plz

[Muncie]

I'd love to see e85 or methanol through a big carby to see what the cooling effects are like on a n/a. 

A 1 3/4" or 2" SU bolts up to a stock 4age manifold if anyone wanted that gem of useless information.

8 minutes ago, cletus said:

Yes!  

If I had some time and skills and materials to send you stuff to test it would be interesting to see results of things like

SU on a log manifold to see how much power it would lose 

Or see how much power it could make with something outside the box like a 650 holley 

 

[kpr]

I always knew this topic would end up at the holy grail, the su carb

[jakesae101]

11 hours ago, kpr said:

I always knew this topic would end up at the holy grail, the su carb

Manu had a 16v running twin Su carbs in his starlet from memory.

[kpr]

^ I remember how amazing yet horrible that was. 

said  dumb shit,  complete with youtube clickbait.    if tldw.  it almost gained 1kw.  so success ?   just need one of these

 

 

 

 

[tortron]

Set your second fan up to another cone on the exhaust tbh

[kpr]

Going to do another trumpet test video sometime soon,   if anyone wants to send me some melted plastic or paper mache  to test.   dimensions are on first page

[ThePog]

Someone RP a set of these

 

 

[kpr]

Ha,  A guy messaged me, asking if i would test some like that if he printed them.   hence why bumping this back up 

[Roman]

I cant wait to see how demoralized he gets when the peach cans win again 

[ThePog]

My prediction would be that it will be slightly less power than plain trumpets, but maybe not measurable.

The logic being that you have increased the surface area of the trumpet so there will be more surface stagnation in the flow, so therefore less flow.

It may even work and actually swirl the air which takes energy and further screws up the flow.

Anyway, my name's ThePog and I got a D in Fluid Dynamics at Canterbury.

[Roman]

I think this is where people see water spiraling down the bath plug hole and then assume that this is good flow.

Or it wouldnt be @kpr's first run in with a tornado enthusiast hahahaha

I might print some more junk for this