Piston Slap: LSX + Porker = WIN

Sajeev Mehta
by Sajeev Mehta

Long time readers of this series know I’m a big fan of modifications to achieve a vehicle’s maximum potential. And there’s no better example than a switch to GM’s now legendary LSX small block V8. To prove the point, I saw an LS6 powered, 1980s vintage, Porsche 911 partnered with a LS1 powered 914 at the 2005 Houston Autorama. Lo and behold, that 911-LS6 arrived at a recent Sunday morning cruise-in. So I got to touch it. And then it started up for me. It was Epic.


The LS6 sounds surprisingly similar to a Porsche boxer at idle, proving how important an exhaust design is to a vehicle’s overall demeanor. I spoke with the owner/creator/fabricator and got the download: the LS-swap saves 56 pounds off the rear end, but the difference is actually 21 pounds after the conversion to a water cooling system with a radiator in the rear wing.

Oh, and this 911 has a supercharger too. Which does nothing for weight savings or handling, but should make for some good times at the drag strip. No matter, the website with more details is here (LINK: www.toy-jet.com) and while it’s not the easiest read, check out the 914 with an LS swap too.

So ask yourself, could I beat that car in my ride? And then remember why the LSX swap is made of WIN.

(Send your queries to mehta@ttac.com)

Sajeev Mehta
Sajeev Mehta

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  • Ronnie Schreiber Ronnie Schreiber on Apr 14, 2010

    FWIW, supposedly the engine bay of the Lotus Elise was designed to accommodate all FWD drivetrains in production at the time (mid 90s), including the Modular V8 Ford put in the Continental and the Northstar V8 in the FWD Caddys. I don't know if the supercharged LC3 version of the Northstar will bolt up to the FWD 4T80 transmission, but ~450HP in an Elise could be fun.

    • Porschespeed Porschespeed on Apr 14, 2010

      Hennessey is supposed to be doing a 700+ HP V8 Elise. We all know Hennessey's, umm, colorful history, so take that for what it's worth. But I have heard from some who toy that it would fit. Superchargers can always be relocated anyway. It's not a tall unit, and it can be replaced with a less tall unit if it really has to be done..

  • Johnny ro Johnny ro on Apr 14, 2010

    I was a gas jocky in the 60s and 70s at family station. Guy pulls up in VW van, around 1970? Fat tires. Up a bit too high in the air. -Gimme the hi-test pump. I will get it. I got it. Let go. -why. - its special. -special? -listen to this. 230 effen horsepower pal. Ya heard uh Porsche? Thats a Porsche engine in there. Revs up the flat six he grafted in there, watching me out side window, me a skinny pimply kid with greasy long hair. Whole thing rocks and makes lot of noise. He does a burnout leaving the station. Next car in was mid 20s babe in a dark green GTO convertible, top down. Wearing a bikini. I gaped and gawed while I washed her windshield. I liked the GTO better.

  • Kjhkjlhkjhkljh kljhjkhjklhkjh A prelude is a bad idea. There is already Acura with all the weird sport trims. This will not make back it's R&D money.
  • Analoggrotto I don't see a red car here, how blazing stupid are you people?
  • Redapple2 Love the wheels
  • Redapple2 Good luck to them. They used to make great cars. 510. 240Z, Sentra SE-R. Maxima. Frontier.
  • Joe65688619 Under Ghosn they went through the same short-term bottom-line thinking that GM did in the 80s/90s, and they have not recovered say, to their heyday in the 50s and 60s in terms of market share and innovation. Poor design decisions (a CVT in their front-wheel drive "4-Door Sports Car", model overlap in a poorly performing segment (they never needed the Altima AND the Maxima...what they needed was one vehicle with different drivetrain, including hybrid, to compete with the Accord/Camry, and decontenting their vehicles: My 2012 QX56 (I know, not a Nissan, but the same holds for the Armada) had power rear windows in the cargo area that could vent, a glass hatch on the back door that could be opened separate from the whole liftgate (in such a tall vehicle, kinda essential if you have it in a garage and want to load the trunk without having to open the garage door to make room for the lift gate), a nice driver's side folding armrest, and a few other quality-of-life details absent from my 2018 QX80. In a competitive market this attention to detai is can be the differentiator that sell cars. Now they are caught in the middle of the market, competing more with Hyundai and Kia and selling discounted vehicles near the same price points, but losing money on them. They invested also invested a lot in niche platforms. The Leaf was one of the first full EVs, but never really evolved. They misjudged the market - luxury EVs are selling, small budget models not so much. Variable compression engines offering little in terms of real-world power or tech, let a lot of complexity that is leading to higher failure rates. Aside from the Z and GT-R (low volume models), not much forced induction (whether your a fan or not, look at what Honda did with the CR-V and Acura RDX - same chassis, slap a turbo on it, make it nicer inside, and now you can sell it as a semi-premium brand with higher markup). That said, I do believe they retain the technical and engineering capability to do far better. About time management realized they need to make smarter investments and understand their markets better.
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