I had sent out the new turbo back to Alta, cause it would make a clap sound and then no boost. They said the turbo is blown due to very little lube. I'm waiting to see what they can do for me.

 

Who is doing what for you? trust me alta has no reason to help you with a turbo unless it was a part that alta sold you.

Mini dealer should replace turbo and oil lines if car is under warranty.

 

Alta did sell me the turbo. It was on display.

Block and head is being built by ABF. We are planning out the rest of the project as we speak.

 

Why is it that any of these guys that are doing these "projects" cant ever say more than a sentence?

No offense tecaterob...cuz u haven't done anything yet for me to laugh at you, but seriously tell us more.

It's always these 30 post wonders that come on and say they are building the motor or planning a GT28RS build, then never say more than a sentence about it. Do us all a favor, learn from what LongboardMini did on the R53 side of things...he always gave you a full perspective of his build. Oh but wait, his 2 year long thread has been completely removed from NAM. So maybe I should say be like Dicks's Garage....always giving updates...sometimes every hour it seems lol.

 

No offense taken Thumper, I say a project, because we don't know what we are doing yet. Waiting on seeing what Alta is going to do about the turbo issue (if any). We are looking at maybe a bigger turbo. I'll keep everyone informed. There's no secrets here.
Right now
Motor being built by ABF
Head is done ( valve job, no porting ) and being shipped to him
Turbo ???????
Turbo tubes all by Alta
Access Port
working on the rest of build

I don't know if I should open a thread for build or keep this one going????

Thanks,
Robert




Why is it that any of these guys that are doing these "projects" cant ever say more than a sentence?

No offense tecaterob...cuz u haven't done anything yet for me to laugh at you, but seriously tell us more.

It's always these 30 post wonders that come on and say they are building the motor or planning a GT28RS build, then never say more than a sentence about it. Do us all a favor, learn from what LongboardMini did on the R53 side of things...he always gave you a full perspective of his build. Oh but wait, his 2 year long thread has been completely removed from NAM. So maybe I should say be like Dicks's Garage....always giving updates...sometimes every hour it seems lol.

 

How can you expect to spool up a larger turbo efficiently, without introducing lag, when compared to the stock turbo, if you've not carried out the necessary flow matching of your cylinder head and potential larger turbo ?

 

because horsepowerz at 5.5k-7k rpm is awsum
all joking aside, I'd like to see this turn into something. I myself wouldn't be for a larger turbo, as the 1.6L has a hard enough time spooling up any turbo larger than ours as it is. I guess if going for high hp the larger turbo *could* potentially achieve this, but the area under the curve on the dyno will be something crazy.

 

I also would like to see this project go somewhere, that said, you can't simply guess at what might and might not work, you have to put lots of thought into something like this, and have a very good understanding on how to do the necessary calculations!

remember this is a DI (direct injection) engine, and although folks think, it's simply a matter of bolting on a larger turbo, increasing the RPM's to allow for the late efficient spooling of the larger turbo, (flow volume and velocity!) further up the RPM range, anybody considered the fuel injection time window, when the RPM's are increased ? Apart from me!

There are many questions like this, that need to be addressed, as you look for more HP.

 

Probably why these projects never go anywhere

 

Sounds like we need some highly paid engineers. LOL

 

Has anyone installed two smaller turbochargers that together flow more than the single stock turbo?

Dave

 

For the same reasons we can't run a large turbo...we can't run twin turbos. Just not enough flow to make it worth it. Plus space is limited...

FWIW...I still love my JCW turbo. Bigger than stock, but not big by any stretch of the imagination...works awesome and the car really is a rocket with it.

 

I just love when people tell me some things can't be done. It gives me more fire. I'll should know by next week what we are doing. I'll keep you posted.

 

Good luck! Can't wait to see your numbers when it's all done!

 

It's not that it can't be done, after all I've done it myself, however, flow volume and velocity is key, to any oversized turbo install, yes you can go ahead and install any oversized turbo, and it will drive on the street, the frustration comes, when you want to accelerate quickly from low RPM's we experience when street cruising.

Any mismatched oversized turbo, is going to be subject to low flow velocity volume at low RPM, this will give you slow turbo spool response (lag) as the RPM's increase then so will your spool speed, and so by the time your oversized turbo starts to produce boost conditions that are useable, you are in the mid to upper RPM region, giving you a smaller useable RPM boost window!

And even then by keeping the RPM's reasonably high, to keep your oversized turbo spooling and holding useable boost pressure, you've still got a flow volume velocity restriction from the stock cylinder head and it's valvetrain assembly.

If you really feel the need for a oversized turbo, other than either the JCW turbo or a well flow matched hybrid, with light weight internals, then put some thought into your intended use first, street or track, and flow match your cylinder head to chosen turbo, you won't be disappointed.

 

lol, i'm an engineer (mechanical), and I work on bigger "turbos", aka turbine engines for commercial and military jets, buttttttttt, i'm certainly not highly paid. hahaha

 

2nd. I would love a bi-turbo setup like the monster of a b5s4 2.7T (bi turbo setup, run some hybrids with fueling and internals, and you have a monster and a half. Friend's had 525 AWHP, 490 WTQ, alllll wheel! Thats talking well over 600hp at the crank. Made my car look like it stood still when going WOT). Having said that, if anyone is looking for a "monster" like that on the N14, it isn't going to happen without basically changing every part in the car. At that point you'd have more money invested than building a B5S4 probably.

As thumper (and czar) said, theres not enough volume in our engines. I get enough jokes that my "1.2" isn't capable all the time lol. With upgraded internals, you would definitely be able to see 300 wtq, and prob about 250 whp or so with the JCW turbo. On a 2600lb car, you're talking about 9lbs/hp at the crank, which is extremely low. The car would be ridiculously fast (relatively speaking), probably run low 13's, mayyyybe high 12's with slicks. Depending on what one would be going for, it'd be close to the limit of whats driveable for many applications, besides turning it into a 1/4 car, which, is really just not the car to do it in (imo).

 

I have not dynoed since my new motor or since adding meth...but I can tell you I don't doubt those numbers. I will need to get to the 1/4 sometime...but I'll tell ya, my FWD drag skillzzzz are less than stellar

 

czar,

Please let us know the specs of a "well flow matched hybrid, with light weight internals", and where we can buy one and how much it would cost.

Also if the hybrid turbo that you mention is something that is available what performance gains could be expected over a JCW turbo which is also a hybrid.

 

Hybrid turbos are available. K04 compressor wheel.. K03/04 hybrid

 

I know that, but czar description of matched flow and lightweight internals seems to be different than an off the shelf K03/k04 hybrid and if I understand correctly the JCW turbo is a K03/K04 hybrid so that is not the mysterious wonder turbo czar is being so vague about.

 

I'm not being vague and nor is there an off the shelf turbo, that is well matched to the stock flow volume velocity of the stock cylinder head, other than the stock OEM, S or JCW KO3 turbo units.

If you want anything other than the afore mentioned matched turbo units, then you'll either have to do what I did, and get yourself a custom bespoke turbo, (or get yourself a hybrid) with ceramic or Titanium wheels, Titanium shaft, ceramic bearings, Stainless steel turbine housing, etc etc, I took the best of the best components, added various peoples turbo knowledge sourced from some of the biggest and best turbo companies in the world, added my own knowledge/understanding and flow calculations, and hey presto some (£3,700 in component costs only) I had my bespoke turbo for my project.

If on the other hand you still want an alternative to the JCW turbo, and can't run to the expense of a bespoke turbo, the you might want to look at the, TD05 range as fitted to the Mitsubishi Evo 8 or Evo 10, these are still twin scroll and although they can be utilised with the use of a fitting adapter on your stock exhaust manifold, you will also need to modify or create a new downpipe, and to get the best from them, you will still need to have your cylinder head flow matched to your chosen TD05 turbo.

Ok cat out of the bag time, on my everyday road going Clubman Cooper S, I use the TD05 16G with light weight internals, Ceramic and Titanium.

Here is a link to the Mitsubishi turbo spec data sheet.

http://www.owendevelopments.co.uk/MH...argersList.pdf

 

Link broken need new one.

 

The link works at my end, but here it is again.

http://www.owendevelopments.co.uk/MH...argersList.pdf

 

Hey czar, you have PM