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frenchyd
frenchyd PowerDork
8/29/20 6:58 p.m.

[sleepyhead moderator edit, to see if there's an issue with editing this post]

RX Reven'
RX Reven' GRM+ Memberand SuperDork
8/29/20 7:06 p.m.

"I'm going to pass on a rotary engine with three moving parts and go with a Jaguar V12"

Said the guy who's desperately looking for ways to spend more time in the shop and less time with somebody.

Added later...

I'm a fan of the cat, may own one at some point, just wouldn't be my go-to for easy power.

Appleseed
Appleseed MegaDork
8/29/20 7:13 p.m.

Easy power would be a junkyard LS and Chinese  turbo. But that doesn't look cool. Slingshots have always been about looking cool and going fast as hell with a differential grenade under your nutsack. And there's nothing easy about that. 

frenchyd
frenchyd PowerDork
8/29/20 7:25 p.m.

In reply to RX Reven' :

  • there is a guy on Facebook Robert Knodt who does a weekly show call Camp Chaos 
  • Right now he's rebuilding a Jaguar V12 completely from the ground up with a $100 budget. 
     
  • I'm trying not to buy another V 12 engine and transmission for scrap metal prices.  And I'm ignoring a guy on the east coast who's trying to give me a chassis with minor rust issue. 
     
  • this rust free Southern California car Cost me $500. Just needs top end assembly. Stock that engine makes 32 more horse power than a Chevy 454 and newer V12's  make 98 horsepower more  l
johndej
johndej Dork
8/29/20 7:37 p.m.

Time to take it racing!

aircooled
aircooled MegaDork
8/29/20 7:40 p.m.

That's actually my idea for the coolest hotrod ever.  Replace the FI with Webber's though (you know, to add complexity!)

Those guys with the blown V8's think they are cool, wait until to you roll up with 12 zoomie pipes and 12 throats of carbs sticking out of the engine compartment!

frenchyd
frenchyd PowerDork
8/29/20 7:46 p.m.
Appleseed said:

Easy power would be a junkyard LS and Chinese  turbo. But that doesn't look cool. Slingshots have always been about looking cool and going fast as hell with a differential grenade under your nutsack. And there's nothing easy about that. 

Throw that same Chinese turbo ( or two smaller ones.) on a stone stock V12  $300-$500 in junkyards. Except you can often buy them much cheaper. Using E85 and you're around 600-650 hp. Put a reground pair of cams on it and you're another 100 horsepower up. ( stock total  lift is only .375 or 3/8ths of an inch. ) 

Cams on V 12 are right on top.Remove the valve covers and there they are.  Not buried behind a water pump or other junk. They  have a notch in them for a little piece of stamped steel to set cam timing. And a bracket to hold the cam sprockets tight so you don't need go fishing for the cam tensioner

no push rods,  no rocker arms  The cams push down on the lifters separated from the valves by shims used to adjust clearance. very easy to do. 
Everything else looks like a top fuel Chrysler except 12 holes for pistons instead of only 8 

frenchyd
frenchyd PowerDork
8/29/20 7:52 p.m.
aircooled said:

That's actually my idea for the coolest hotrod ever.  Replace the FI with Webber's though (you know, to add complexity!)

Those guys with the blown V8's think they are cool, wait until to you roll up with 12 zoomie pipes and 12 throats of carbs sticking out of the engine compartment!

Why not make your life simple? Toss a GMC 6-71 on top of the manifolds with a Holley dominator on top of the Supercharger?  

I think its cool just because its different.

But... I have to say i cringe when I see zoomies that are not tied together.  In my youth we had a death at our local strip when a pipe broke off during a launch and the tire shot it back into the crew.

Donebrokeit
Donebrokeit UltraDork
8/29/20 8:06 p.m.

There have been many bad ideas posted here devil

 

Following. 

frenchyd
frenchyd PowerDork
8/29/20 8:11 p.m.
johndej said:

Time to take it racing!

Not that one. Too nice! It's a good buffing and some detailing  away from a nice profit or a really high speed cruiser. It's a legitimate 150 MPH car Stock!  

aircooled
aircooled MegaDork
8/29/20 8:11 p.m.
frenchyd said:
aircooled said:

That's actually my idea for the coolest hotrod ever.  Replace the FI with Webber's though (you know, to add complexity!)

Those guys with the blown V8's think they are cool, wait until to you roll up with 12 zoomie pipes and 12 throats of carbs sticking out of the engine compartment!

Why not make your life simple? Toss a GMC 6-71 on top of the manifolds with a Holley dominator on top of the Supercharger?  

No way, that's to easy!  The theme is more mechanical mayhem.  Now if you want to put a pair of turbos on each side pulling through some side drafts, that could be interesting.

 

Hmmm, I wonder if you could setup Weber's as blow through, one per cylinder.  Now that would be crazy! 

frenchyd
frenchyd PowerDork
8/29/20 8:20 p.m.
Purple Frog (Forum Supporter) said:

I think its cool just because its different.

But... I have to say i cringe when I see zoomies that are not tied together.  In my youth we had a death at our local strip when a pipe broke off during a launch and the tire shot it back into the crew.

V8's have a second order harmonic impossible to eliminate. When you add the required radical camshafts  the shaking and vibration  will cause those problems.  
 

A V12 on the other hand is turbine smooth. I used to balance a 1/2 dollar on my race car engine with the wildest camshaft available. 
 

Smooth defines V12's 

frenchyd
frenchyd PowerDork
8/29/20 8:25 p.m.
aircooled said:
frenchyd said:
aircooled said:

That's actually my idea for the coolest hotrod ever.  Replace the FI with Webber's though (you know, to add complexity!)

Those guys with the blown V8's think they are cool, wait until to you roll up with 12 zoomie pipes and 12 throats of carbs sticking out of the engine compartment!

Why not make your life simple? Toss a GMC 6-71 on top of the manifolds with a Holley dominator on top of the Supercharger?  

No way, that's to easy!  The theme is more mechanical mayhem.  Now if you want to put a pair of turbos on each side pulling through some side drafts, that could be interesting.

 

Hmmm, I wonder if you could setup Weber's as blow through, one per cylinder.  Now that would be crazy! 

I like Easy. Remarkably a V12  is really simple. Just times 12.  

RX Reven'
RX Reven' GRM+ Memberand SuperDork
8/29/20 8:28 p.m.

In reply to frenchyd :

Hi frenchyd,

Thank you for sharing your experience.

Again, I'm a fan of the cat.

Right now, I'm a middle aged man (56) living the life of a younger man (two daughters, 12 & 15), med-tech career (2019 = 75+ hours per week, 2020 was supposed to be easier but COVID-19 put an end to that) .  Right here, right now, I'm just hitting as many "Easy Buttons" as possible (I daily a 2019 Mazda CX-3 because it's a fun little scamp that asks for nothing).  I'm in my last few years of "deferred gratification"...after that, if I want a Jaguar, Porsche, something that has spinning triangles, some combination of the three, whatever, it's all good.

Hopefully, you'll be active on this board at that time as I would greatly appreciate your guidance if / when I decide to treat myself to a (Jeremy Clarkson voice) Jauuug. 

NickD
NickD UltimaDork
8/29/20 8:34 p.m.
Appleseed said:

Easy power would be a junkyard LS and Chinese  turbo. But that doesn't look cool. Slingshots have always been about looking cool and going fast as hell with a differential grenade under your nutsack. And there's nothing easy about that. 

My favorite is still Mickey Thompson's slingshot where he took one of those Pontiac half-a-389 194.5ci slant-fours, chopped it in half again for a 97.25ci inline twin, then bolted a Detroit 2-71 blower with a single Hilborn injector to it and made 250hp. Because Mickey Thompson.

frenchyd
frenchyd PowerDork
8/29/20 8:45 p.m.

In reply to RX Reven' :

Do yourself a favor go to Facebook and look up Robert Knodt  he has a weekly Show called Camp Chaos .  
Right now he's starting a complete rebuild of a Jag V12 with a $100 budget.  
 
There are loads and loads of cheap non running Jaguars because people are just too lazy to learn.  fuel injection works pretty much the same no matter what it's on. Details like sensors etc can be found by watching U tube's 3 part series. 

frenchyd
frenchyd PowerDork
8/29/20 8:49 p.m.
NickD said:
Appleseed said:

Easy power would be a junkyard LS and Chinese  turbo. But that doesn't look cool. Slingshots have always been about looking cool and going fast as hell with a differential grenade under your nutsack. And there's nothing easy about that. 

My favorite is still Mickey Thompson's slingshot where he took one of those Pontiac half-a-389 194.5ci slant-fours, chopped it in half again for a 97.25ci inline twin, then bolted a Detroit 2-71 blower with a single Hilborn injector to it and made 250hp. Because Mickey Thompson.

Guys like Mickey Thompson remembers the basics. Engines  need fuel, air, ignition and timing  slice and dice and they all work the same. 

barefootskater
barefootskater UltraDork
8/29/20 11:13 p.m.
aircooled said:
Hmmm, I wonder if you could setup Weber's as blow through, one per cylinder.  Now that would be crazy!

You can but it's tricky. The throttle shaft needs to be sealed, usually done with an o-ring on each side, so you're not spraying air/fuel out the carbs under boost. Trouble with Weber's is the space between the barrels is really tight so cutting the body to fit the seal is tricky at best. Luckily, you can buy them already set up for blow through. Not cheap, but nothing looks cooler than Weber's. 

yupididit
yupididit PowerDork
8/29/20 11:31 p.m.
frenchyd said:

In reply to RX Reven' :

 

I have one of these devil

frenchyd
frenchyd PowerDork
8/29/20 11:34 p.m.

In reply to barefootskater :

The problem I have with an idea like that is the conflict between classic and modern.  While I love the appearance of Weber's and enjoy solving the tune up dance required. They are classic. Elegant but antique 
 

Turbo's really do work best with EFI.  yes you can kinda kludged them to work with carbs but at a cost. A cost of power drivability  and  potential damage to the engine. 

frenchyd
frenchyd PowerDork
8/29/20 11:37 p.m.
yupididit said:
frenchyd said:

In reply to RX Reven' :

 

I have one of these devil

Congratulations  

frenchyd
frenchyd PowerDork
8/29/20 11:45 p.m.
aircooled said:
frenchyd said:
aircooled said:

That's actually my idea for the coolest hotrod ever.  Replace the FI with Webber's though (you know, to add complexity!)

Those guys with the blown V8's think they are cool, wait until to you roll up with 12 zoomie pipes and 12 throats of carbs sticking out of the engine compartment!

Why not make your life simple? Toss a GMC 6-71 on top of the manifolds with a Holley dominator on top of the Supercharger?  

No way, that's to easy!  The theme is more mechanical mayhem.  Now if you want to put a pair of turbos on each side pulling through some side drafts, that could be interesting.

 

Hmmm, I wonder if you could setup Weber's as blow through, one per cylinder.  Now that would be crazy! 

If you truly want mechanical mayhem you should look into steam. Reciprocating steam. There is some really wild stuff there. Hence Steam punk!  

barefootskater
barefootskater UltraDork
8/30/20 12:44 a.m.

In reply to frenchyd :

Compromises for sure, but if the goal is looking cool and being interesting and unique...

And, as we've already established, if you want the best of driveability, reliability, cost, and ease, well, it's just another turbo LS. 

sleepyhead the buffalo
sleepyhead the buffalo GRM+ Memberand Mod Squad
8/31/20 1:08 a.m.

this is a moderator test

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