V8 DNA 4thirty

[DNA AUTOMOTIVE]

these were at the wheels and they did have a little bit more I must admit they had toughend engines tricky diffs and more along with new ecu and more etc etc they were are awsome to drive I have driven lots and lots of MR2's now over the years infact I would like to find someone who has driven more I have, Ive driven them with camry V6 engines and turbos etc etc but nothing compared to these cars!

[paulm]

FWIW, I believe the supercharger option to be the best option if your going to stick with the 1zz, you dont have the heat of the turbo in the engine bay for one thing and another big plus is you wont have the sound of a dump valve ( whether that be an external or internal)going off, which really blows the cover of it being a rep.

Although having said all that each time a start up the V8, it frightens me stupid, then I start giggling

Apologies to Darren for hijacking his thread, (if anyone would llike to start a 'what engine is best' thread it'd be a good idea)

[Ferrari_NL]

Turbochargers are the Answer!
The Aftermarket age-old question endures, I am looking to boost my engine, do I supercharge? This is not a quick answer, but let's look at some features that make the turbocharger the most powerful and economical power adder for your engine.

A Turbocharger is:
More Versatile - A turbocharger is equally appropriate whether your goal is a mild street application or an all-out drag racer. A properly matched turbo can provide superb response and the ability to run boost levels that will push your limits.

So-called Lag - Modern GT-series high-flow wheels are smaller than ever to reduce inertia, and in combination with the ball bearing system give throttle response that has to be driven to be believed. Additionally, a turbo's smaller and more compact package allows for greater flexibility in installation locations.

More Efficient - The turbo uses energy that is otherwise wasted through the tailpipe, where a supercharger has high parasitic drag since the power to drive it comes off of the crankshaft. Garrett's modern GT-series compressor and turbine aerodynamics push the state-of-the-art limit for stage efficiency and flow range.

More Durable - A turbocharger only has one moving part, the rotating assembly. No pulleys, belts or geared transmissions. This makes for a less complicated device with fewer things to go wrong.

Information Provided By: Garrett Performance Products

[paulm]

How many Ferraris have turbochargers ?

[F430kid]

Real ones or replicas

[marti123]

Lot of Ferrari's have turbo's not as standard....

  http://www.fantasycars.com/1/News/Twin-Turbo_600hp_Ferrari_360_M/twin-turbo_600hp_ferrari_360_m.html

Problem with the mr2 is, not how much you can get the bhp up.it's if the chassis can take the power or not, maybe if you don't see a bend it`s ok but when you turn in at speed then you will feel the whole car twisting. Good handling, yes the mr2 has got this but only at moderate speeds. You but a v8 in there and you will have more weight and more twisting. Like the mini cooper all them years ago "Fantastic around the bends"but the car could only do 90 mph flat out. The difference in the mr2 and a ferrari are miles apart as far as handling is concerned the faster the car can go the more every thing has to be uprated and that cost's money! Even a Farrari at speed needs to be handled with care and attention or it will bite your head off littarly. So my point I guss is, drive carefully with all that bhp and enjoy your cars.

 

[paulm]

Most powerful MR2 is about 700hp, so theyre a pretty capable chassis.
PS you can always up the level of bracing and therfore aid turn-in

A couple of points about twisting.

The V8's the myself and Darren have are longitudinal so , theres actually a small reduction in the twisitng moment when power is applied.
If you mean twsiting due to extra weight, the audi V8 is an aluminium engine, the extra weight is about 100KG ie a passenger. However in this instance the extra weight, rather than sitting out off axis as  a passenger would, is along the longitudinal axis and within the wheel base, so what you get is more grip at the rear, but no extra moments of inertia in regard to 'twisting'.
However you do get more understeer, but this is cancelled out by two things, one is moving the fuel tank forward, as it is in Porsches( or thats what I've done) and by having adjustable platform shocks and corner-weighting the car back to OEM balance.
Job done.
It doesnt handle as crisply as a 1zz powered roadster, and is little bit slower in transition, but in esssence its a faster set up.

Heres a video of a silver V6 powered MR2 versus a MK2 turbos ( more powerful than the mk3 turbo) on the race track. The V6 weighs within a few kilos of the V8 you will notice how it goes around the corners !
You'll notice the silver V6 slowing down due to him selecting 5th instead of 3rd, he then finds third and the V6 is gone
http://www.youtube.com/watch?v=3OIAW-nlUHM

[dangerrous]

Getting a few hours back on the car, fabricating the gearlinkage, driveshaft adapters and moving the handbrake.
D
Pictures next week.

[FBP3rd]

cant wait for pics dangerrous  .

[Stewart]

Has anyone ever fitted the Supercharged engine from the Lotus Elise SC?

[dangerrous]

Spent most of the weekend designing and fabricating the gear linkage, this uses a quick shift from Mr2 Mk1, and a combination of the original Mk2 and Audi gearlinkage with extensive modification. I'm getting new extended pushpull cables from cable-tec
 I'm very pleased with the precise gear change feel. I'l post a video when I've got the cables installed
I've used the Mk1 gear selector to give me a low centre console and now I can fit a 6 speed 'H' gate

Must admit it's been a refreshing change to get away from the, now completed, front steering/suspension.
I've had a look at the driveshafts, unfortunately there's not enough room for an adapter (my bad) so need to cut&shut, weld, lathe and possibly balance a pair from the A8 and a set from a diesel A6 (or equivalent).
 While I'm down the breakers I'll look around for a decent hanbrake, as the A8 is too big!
D

[beemaman]

hi dangerous

  thats some engine build your doing there buddy,ive got to say you must be multi talented to fit and make those parts fit.its going to be a top class job when done.really cant wait to see some more pics.

 i admire your workmanship buddy 

[dangerrous]

Thanks
Just wish I was a far as you and some of the other guys in the build
D

[beemaman]

it will get there buddy.i dont think anyone on here has underaken such a complicated modification and i for one think its something to be proud of.it will be one hell of a car finished,will have everything,sound/style/speed and thats what these cars are about.my dad used to do these type of conversions,he was a panel beater for ove 50 years until he retired,now i have him working for me on and off.(he would be bored at home) lol he made some crazy engine changes into smaller cars.......

keep up the good work buddy 

[beanyfelix]

I agree,

This is gonna be an awesome sounding and performing car. Cracking work Dangerous. I guess i'll hear you before i see you, when it's finished.

Keep the posts coming.

Beany.