Marks RX7 - lets break a rotary.

[Mark Davis]

New rims.

 

[andybond]

They look superb.

 

[Mark Davis]

They look superb.

Thanks mate, much better. Just need to sort the ride height and an engine

 

[Duncan Grier]

Fit an LS lump and bolt on those 2 massive turbos you have

 

[Mark Davis]

Fit an LS lump and bolt on those 2 massive turbos you have

Sacrilege !

 

[Duncan Grier]

I asked for that lol

 

[andybond]

I asked for that lol

It was politer than the reply I would have given!

 

[clarky_gtt]

just in the comments to witness another engine going kablamo

 

[Mark Davis]

just in the comments to witness another engine going kablamo

Yes but have you seen my snazzy wheels ?

 

[clarky_gtt]

get those tyre pressures up, so much easier to push it around.

 

[Mark Davis]

get those tyre pressures up, so much easier to push it around.

That’s actually not a bad shout

 

[Mark_L]

Must be something to do with Our Name Mark, I'm always having sh*t luck too!

I'm thinking it's time to change Car, maybe not even bother...

 

[Mark Davis]

Must be something to do with Our Name Mark, I'm always having sh*t luck too!

I'm thinking it's time to change Car, maybe not even bother...

It’s either our name or dog shit engine builders

 

[Mark_L]

It’s either our name or dog shit engine builders

Could be that! But I built mine saying that i'm a fabricator not an engine builder.

 

[Mark Davis]

A bit of an update from the engine builder today. Rear rotor was dented and seals bent caused by detonation

So new rotor sent for balancing/lightening and then rebuilt, hopefully within 4-6 weeks timeframe.

 

[Steve Swan]

WOW. That's an insane det mark. Is it possible to have more control over boost/ign timing?? I suppose service life is directly proportional to shaft horsepower, a bit like how budget is directly proportional to depth of pockets and indirectly proportional to length of arms. Have you found the limit of a 2 rotor?? Or is it possible to get more? I thought it's figure's were mental, but I don't know about Rotary's.

 

[Mark Davis]

WOW. That's an insane det mark. Is it possible to have more control over boost/ign timing?? I suppose service life is directly proportional to shaft horsepower, a bit like how budget is directly proportional to depth of pockets and indirectly proportional to length of arms. Have you found the limit of a 2 rotor?? Or is it possible to get more? I thought it's figure's were mental, but I don't know about Rotary's.

Two rotors in Aus, US, NZ etc all making 800hp + as they are loving life with E85.

2 rotors running in the 6’s QTR mile just in the UK we are limited to fuel and decent tuners it would seem although I do think the guy I use knows what he’s doing.

 

[Steve Swan]

I always remember as a younger man in the early 90's reading numerous articles on R5 gt turbos with insane HP figures. These articles nearly always did not feature a road test as said engine was in pieces again.... If UK fuel quality is the limiting factor then thats it. You could always go Methanol (cannot overfuel and no Detonation ) only issue would be the fuel consumption not getting above 3mpg. Towing a 500gal tank around with you is kinda impractical. Keep fighting the good fight, I have certainly enjoyed your exploits so far, I hope it all comes good.

 

[andybond]

Rear rotor was dented and seals bent caused by detonation

Why did it det?

 

[Mark Davis]

Not 100% - engine builder says faulty ignition - plugs, coils or lead.

The log could suggest it went lean depending on your view so kind of a middle ground.

Bottom line is it’s gonna cost.