question
Turbo Mini Forums

hi all
first stupid question of many :)......using T3 with mg metro ignition would 130-150bhp be acheivable and if so rough guide to mods needed to acheive about that figure ?
just about to service and sort out niggly bits before funds allow and i start upping the power
thanks in advance
steve

First off, you would need a suitable CR to run ~12PSI to achieve those figures. Around 9:1. Then you want to keep the charge cool so an intercooler would be necessary. Transmission would be a concern at those power figures too. Clutch, gearbox and diff would need to be appropriately specced.

What CR does your current engine have? I would be reluctant to just "Whack up the boost" on an already used engine. Can you give us a spec on your current set-up?

Oh, and searching will yield a wealth of info. Virtually everything have been covered here before

Edited by GaryOS on 17th Sep, 2009.

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

I'd put mappable ignition (ie, Megajolt or similar) top of my list just to protect all the other money I'd have spent, not a mechanical dizzy and certainly not the MG Metro one as it's meant for a high CR engine.

Schrödinger's cat - so which one am I ???

its a bog standard engine at the moment , dont even think its had a rebore.
rod, was hoping to gradually biuld up to mappable, but wanted to get it running strong and with decent bhp figures 1st .
and wouldnt have a clue about mappable systems.
steve .

Edited by EssexSteve on 17th Sep, 2009.

So is it a standard metro turbo motor you have?

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

Good point Gary, I assumed a N/A MG Metro dizzy from the description.
Even if it is the Turbo dizzy, once you start increasing boost pressure, even if you fit an intercooler to keep charge temperatures down, you really need to be able to set the ignition correctly, not just rely on a piece of clockwork junk that should be in the Science Museum :)

Schrödinger's cat - so which one am I ???

I couldn't agree more Rod. I am as anti-dizzy as you. I'm just wondering where he is starting from in terms of ancilliarys like carb, fuel pump etc.

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

gary, starting right at the begining , bought the car want to get it running correctly and go from there ,
at the moment it has a moody fuel pump under the bonnet so on higher revs its getting no fuel and spluttering.
new metro turbo pump should be winging its way to me .
steve

OK, I missed your last comment when I was replying. You have an engine with an unknown history, that has likely served well over 20 years without a rebuild. I wouldn't make any attempt to increase power without rebuilding

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

ok , it will be fully rebuilt at some stage,i,m just going to get it running correctly use it for the winter i wasnt going to up the power without a rebuild, but my question was would it be possible to get 130-150 using a t3 turbo and metro turbo igniton system ?
steve

Yeas, but not reliably. Rod is right. Mappable ignition is a necessity if upping the boost

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

id say yes .

lots of engines ran a dizzy before megajolt came along ,and ran well.

just get the timing set up on a rr before you hoon around on high boost .

as stock ,and with a decent intercooler fitted , id think 10 psi would run on your engine ,and that should give you 120 to 130 ish ,maybe more .

whether the engine is in a state to recieve that sort of boost without expressing its concern in some very tangible way is a voyage of discovery .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

P)eased to hear your comments Robert, as I am running stone age ignition with 28 degrees maximum advance and a regular 12psi.I have a cold air inlet,an effective intercooler and a TurboPhil head and Kent cams turbo specific cam.C/r is just under 9:1
From the above, I should be getting up to 130bhp ?.
Have yet to put it on rollers as I have heard too many tales of frying the motor doing so.Maybe when I get my next engine built, with better pistons ?.

I don't disagree it can be done with Stone Age technology but, if Steve is looking for 150hp from a fairly basic engine specification, mappable ignition would still be number one on my shopping list (along with a RR session to set it up right).

As with life, you have to prioritise - next on my list would be a cross pin (4 pin) diff.

And I'm taking it as read that before any of these you sort out the brakes and suspension to handle any power increase.....

Schrödinger's cat - so which one am I ???

I ran a locked dizzy (weights locked so no mechanical advance) at 26 degrees for a couple of years with 170 odd horse power with no problems so if you want to stick to a dizzy then you will be fine.

-MINI CLUBMAN 1380 TURBO-

ok thats sounds cool, eventually would upgrade, but knowing i could in theory get the sort of power i,m after with standard turbo and ignition is a help
cheers
steve