Gallardo V10 TT would be a Very nice choice if possible ;-) reliability wise it would be toss up between that or the use of a GM V8 (which would be easier/cheaper to maintain)

Rotories are g.a.r.b.a.g.e, not Worthy of being swapped into such a car........got rid of my 13b after a week of owning my previous FD

Sent from my ROOTED Defy using Teamspeed

 

The guys that built this car has been emailed in regards to the decent sounding engine...

YouTube - ‪MadMike 4 Rotor FD doing donuts!!!‬‏

/JON

 

Love the Gallardo idea, but after buying the engine for what I am guessing would land on 50k and then tuning it at Underground for another 80k I would land on 130k which frankly is a little much for my budget...

/JON

 

Having worked with mad mike, I can say his car sounds wicked in person, but drivability on the street wouldn't be good, and reliability as well.

 

How bad would it be? Is there ways to improve the reliability?

Having that on the streets would just be stupid cool so I am willing to do some sacrifices for it...

JON

 

Great project, the car looks amazing.

The exotic V8 sound you are looking for comes from engines that have a flat-plane (180 degree) crankshaft. 180 degree crankshafts are often used in V8 engines designed exclusively for race applications such as that Judd V8 and V8 GTR that you like. They are less common in street cars but the Ferrari V8 engines do use a 180 degree crank for example. A 180 degree V8 crank typically rev’s more freely since it doesn’t have the counterweights that a 90 degree crank does.

Most of the V8 engines that you can source from street cars, such as the LSX series, Ford DOHC engines, and even the Lexus V8 you are currently running, use a cross-plane (90 degree) crankshaft. They typically do not require external balance shafts, are smoother at idle speeds, and produce torque lower in the rev range, so are typically less expensive to produce with longer longevity.

Read here for some more differences:
Crossplane - Wikipedia, the free encyclopedia

If you could take a GM LS7 427 and have a custom 180 degree crankshaft and custom timed camshaft machined, along with integrating some external balance shafts, you would have your ideal engine. It would make plenty of power in NA or boosted form and would have the exotic sound you desire with some exhaust runner length tuning. It is also quite compact compared to DOHC engines since the heads take up so much less space. The aluminum block will also help save weight. The block, CNC cylinder heads, and other aftermarket components (rods, pistons, head studs, valves, springs, intake manifold, quality head gaskets, etc) are easily sourced. You would have to run an aftermarket ECU to accommodate for the changed firing order, but that is easy to program with most standalones. It would be an interesting project for sure, and I don’t think it’s been done before outside of race programs.

 

That downside with rotary is that, not many people are used to working with them. If the car brakes down on gumball for example parts and knowledge for a 4rotar will be very hard to find.

Just buy this and rule the streets

JUDD V10

Engines « Engine Developments Ltd

 

Maybe AMG still has one of the 7,3L V12 ordered by Pagani for the Zonda in storage? Now that would sound insane

Other than that I think the Judd engine in the hill climb video you posted had the sickest sound of them all. That engine in your Radical would be the sickes combo ever. NA engines > Turbo.

 

So you are saying that I will be all good if my Judd v10 breaks down... Just kidding, know what you are saying!

Have been trying to email Judd, but the e mail just bounces back... If I could make that work I would I most likely go for it, but as they state on their website the rebuild interval is 3000km... That is however race speed, if I could get a 7000km street interval I would go for it, I would be broke very soon but holy moses the car would be insane

/JON

 

Not sure if this company has been mentioned yet but Ilmor produces some race engines for among others IndyCar, NASCAR and ARCA. They might be able to come up with something cool, could be worth checking out. Ilmor Racing: IndyCar, NASCAR, ARCA and Kart — Ilmor Engineering

The reason why I came to think of them is because they produce a V10 engine for among others Goldfish RIB boats. I saw their V10 725hp engine in a Goldfish 29 RIB with carbon fibre package once and my heart skipped a couple of beats