Aces- Build

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ChrisS
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Re: Aces- Build

Post by ChrisS » 02 Dec 2019, 11:07

The 156 and 166 are good donors as you get the best version of the V6 with those. I’ve built a few 12v engines in the past but wouldn’t do another.

I’m happy to share the information on the changes I made to fit the Alfa V6 if you have any need for that.

aces
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Re: Aces- Build

Post by aces » 03 Dec 2019, 03:21

Yes Chris, i keep that i mind when i start my build.

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Re: Aces- Build

Post by aces » 12 Jan 2020, 04:41

New suggestion for possible engine.
Mitsubishi 6A12 2.0l V6 with about 138 to 197hp. Dependent on ECU control.
However, have some thoughts on the engine weight which is about 180kg.
Will see if I can get help with weighing an engine more precisely.

With this engine, I will not have problems getting it approved.
With the Swedish rules.

Just found out that the engine weighs 150kg + gearbox 40kg approx.
Not bad for a iron block V6 engine.
And with smaller generator gives at least 10kg less weight, and by other means you can certainly reduce the weight more.
With the right aerodynamics the project can be very interesting, and who does not like a v6 engine.
Last edited by aces on 12 Jan 2020, 09:15, edited 1 time in total.

Midlana1
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Re: Aces- Build

Post by Midlana1 » 12 Jan 2020, 08:55

Your post above refers to a 180kg engine. I've found that "in general", a 4-cylinder engine is around 135kg, and the transaxle around 40kg, or around 182kg (400ish lbs) total. This means that a complete V6 drivetrain might be around 220-230kg. With a 182 kg (plus turbo weight, so maybe 200kg), the weight distribution on my car is 33% front, 67% rear. Personally, for how I use the car, I wouldn't want to go further with rear weight bias, but that depends almost entirely upon you, the builder, because it depends on so many things, such as: what will the car be used for, driving experience, driving technique, budget, etc, etc...

aces
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Re: Aces- Build

Post by aces » 18 Jan 2020, 08:44

Why should it be so difficult, but unfortunately it is one of the most important decisions before construction.
Desired targets are 140 to 200hp, v6 engine.
And possible to install turbo in after first registration.
Then we have the Swedish laws that greatly reduce the selection 100kg / 15kw.
If the car weighs about 800kg it will be 120kw or 160hp.
So that's my problem hmm!
If you look at the Mitsubishi 6A12 it weighs about 150kg, 107-110 kW (145-150 PS; 143-148 hp) at 6000-6750rpm.
So it passes the first inspection since the engine marking says only 6A12 and that means 145-150hp.

Then there is a large selection with opportunities to improve the engine.
Would like to receive comments and ideas.

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freakynami
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Re: Aces- Build

Post by freakynami » 18 Jan 2020, 19:41

Adding boost after firsty registration seems like a good idea to me. By the sound of it, your local regulations have a power to weight allowance, you could consider building the car with a (removable) steel floor rather than aluminium. For example the main floor is around 8kg if using 1.6mm Aluminium, if you made it out of 6mm Mild Steel it would be closer to 85kg. More weight (that doesn't look obviously like ballast) would give you a higher power allowance. Then after first registration swap out for aluminium and it will be quick, cheap and simple.

aces
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Re: Aces- Build

Post by aces » 21 Apr 2020, 09:17

Hey !
Haven't happened so much since my last post.
Have ordered my seats from LussoMotors in Portugal.
So it takes extra time now with Corona virus.
Have painted my Mazda miata parts. Started with the construction table top.
Still looking for the right donor car, the goal to get the right car for the summer so I can dismantle and renovate what I will use.
download/file.php?mode=view&id=2743
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Midlana1
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Re: Aces- Build

Post by Midlana1 » 21 Apr 2020, 11:24

A couple things to keep in mind regarding engines:
1. What is currently too expensive to consider may well be affordable by the time that the chassis is ready for it.
2. Contradicting #1, it's good to have the engine on the build table when building the chassis, as it's really the only way to know for sure that it'll fit.
3. Another issue with newer engines is, by the time you want to start it, will there be aftermarket engine computer (or at least modifications) that allow running it without all the stuff that won't be connected. While new engines make impressive power, there's the overhead of complicated ECUs that are connected to everything. Sometimes it'll run fine without certain boxes, and sometimes it won't.

aces
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Re: Aces- Build

Post by aces » 22 Apr 2020, 09:38

The goal is to have as many parts as possible before the actual construction starts.
Since the engine is the most important part, it must be right.
And I have no time plan but take it as it comes.
And it might be time to think a little outside the box and invest in something newer.

aces
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Re: Aces- Build

Post by aces » 27 Apr 2020, 02:45

Tube bender test, not bad at all.
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