I wanted to know if changing the pistons on my mini s would improve performance they told me it would add 40 - 60 Hp but it is the safest way to go. They Also told me they can open up the engine to a 2.0 L what do you guys think about this????

 

who told you this?

 

$$$$$$$$$$$

 

A shop down in Houston they told me they would do both for 9,000 but he said if he does both it would be around 120 hp gain

 

Have they ever done this before? Also... how do they plan to tune it?

Are they showing you their car or going to test on yours?

 

Maybe more durable pistons to deal with higher boost or other engine changes. I don't see how changing pistons alone will do much at all for performance. Did they give you any more details?

You also said "both"....there should be four pistons.

 

Is that Bravarian Hyper Sports?

 

The only way i could see gaining 40-60 hp from pistons would be jacking the compression way up which would require RACE GAS ONLY.
Sorry you cant make that much from pistons alone.

 

They told me they done 3 car before and they where made for customers that only use them on track he told me it would be a monster they said they would modify some other parts but the most gain would be from the pistons. He said it was from some really high cuality material. He told me after getting that get alta and m7 parts and I should be around 400 hp

 

No it was not Bravarian Hyper Sports they told me they could change the pistons only for a 40 hp gain. but they qouted really high. I am getting all my parts installed there the ones i cant do myself they are very good and fast.

 

Our engine already has high compression. Not sure I'd want it any higher. 9k! :impatient

I'd just stick to the more reasonable mods. Perhaps look into a new turbo and tuning. Not sure I'd go into the bottom end.

But if you decide to do it, let us know!

 

before spending your money... get that in writing... you will need it later

 

Could be forged pistons and a TON of boost?

 

I am not sure if to do it or not I mean i dont want it to race in track i just want to see what is the best performance i can get from that engine. I dont really know what to do 9k for that sounds really high Maybe if you did it twin turbo it would be faster than that but not sure.

 

What mods do you have already? There is a decent amount of power to be found with just bolt on parts.

 

I have the alta intake and the Alta Catback,the alta inlet tube order should be here monday, I ordering ALTA Plug-N Play ECU Monday and thats it for engine I dont acouple of things to the exterior but Nothing major

 

Unless you can talk to the other 3 owners that have had the work done I wouldn't do it. Ask them to put everything in writing and list out all of the parts they will be using.

 

I would recommend you Alta Downpipe the Ecu and the downpipe will increase your hp

 

Whatever shop told you that is full of crap. I suggest you keep your business to Alta or RMW or another competent tuner (or a dealer of them) with physical results. Don't let this place take you for a ride and waste your money.

My $.02,
Josh

 

Why are you even thinking of doing this,the car you have once you put the ECU on will be plenty of fun and plenty fast...all your doing is asking for headaches and a car sure to be in the shop..talk to some of the guys on this site,email them or get their phone numbers or talk to Alta,but think what your talking about doing...Their are a whole lot better things you could be doing with your money...There's some pretty passionate Mini guys around here that I am sure will agree...Enjoy your car

 

Keep your money in your pocket and do your research first. It sounds like the shop you are talking to is feeding you a line of bull.

 

your engine is approx 100 cubic inches

they are promising you 420hp or a 4.2-1 hp/ci ratio

that's a ton of boasting to get 4.2 on street gas and drivable

so, with that thought in mind...

 

exactly what I was thinking. . . . .

 

I have a pig that flies that I can sell you as well:p

I'd stick to the proven bolt on mods for the time being. If you really want that much power down the road find a shop that knows MINI's and has some experience doing engine builds with big turbo set ups
Mike

 

I have to add my name to the list of skeptics. I find it hard to believe that there is a bored out/stroker version of this engine that displaces 2.0 liters. If you find it is real, are they increasing the bore or stroke? Whose parts are they using?

I'd at least want to know the particulars beforehand, if I were you.