Eagle

iTrader: (2)

i know its gonna be happening to me at some stage just need the extra 5k for a gearbox

CossieRich

iTrader: (1)

My comp ratio is 7.7:1
Standard head ports

You need an 044 feul pump and i would recommend decent suspension to get the power dwon really

CossieRich

iTrader: (1)

It is Nice mate.

Think i will just change my name to cossierich becuase im not sure of the power really. With standards ports on my head i wont have reached the magical 400bhp. This was an experiement for myself, Mark and Stu really.

Mark has never done a greys conversion on a standard head before.
I have the 1st off the shelf greys chip from Stu

I can deffo confirm that it works fine but im going to have to change my -31 for a -34 because my 31 is at full preload

Eagle

iTrader: (2)

there is a nice rolling road shootout next saturday mate .. not too far from you either

cossie4i+

iTrader: (15)

Did you have the BD14 fitted on the inlet ?

Steve.

CossieRich

iTrader: (1)

yup

CossieRich

iTrader: (1)

no rolling road shootout for me Pete. I want to get le-mans out the way before i do that.

Stu @ M Developments

iTrader: (12)

Just to clarify:
I have mapped hundreds of conversions like this obvioiusly, but have always maintained we will never do greys conversions "Off the shelf" as we believe 380+bhp to be too much to ask of a DIY fitment on a potentially 20+year old engine, harness and fuel system. The possible problems are many and we quite simply do not wish to have our name muddied when things go wrong and engines fail because silly little things that are wrong with cars, fuel filters, fuel regulators, wrong plugs, squashed fuel lines, CR totally wrong, injectors not modified properly etc etc... All these will spell definate meltdown if not checked professionally with wideband and det equip and we would naturally be the first in line for a portion of blame. lol

We decided recently that if you are having a well known pro tuner do the fitting, setting up and checking, we will be happy to supply you some really good management software. Rich was the first, chosing Mark to do the fitting for him who we are obviously happy with as ive heard on the grapevine he knows a little about these YB Cosworth things.

We will do this conversion mail order now for all level's of ECU and closed loop is also available (Which Rich incidentally has NOT got due to being on L6)

CossieRich

iTrader: (1)

Can you answer my PM Stu when you can mate

Lambchop

iTrader: (1)

this sounds great

after i fit my 500 ic it might be the next step forward. whats the limit of a T34 then? I see you have a .55 and i have a .48

I already have the quaife diff, recon box, alcon 6 paddle and a BD10 inlet so dont need much to convert...hmmm so much for leaving my car as it is

CossieRich

iTrader: (1)

With your .48 the boost will tail off quicker than my .55. The .63 is the best for holding boost higher up the revs but then you lose responsivness and the lag will be greater. Thats why i went for the .55. Same response and spool up of the .48 but gives the greatest mid-range torque and can hold on longer up the rev range. Even if you welded the wastegate penny shut the t34 wont really be able to hold much more than 2 bar towards the red line. It all depends what you want really. If you want hard and punchy accerleration than stick with the .48 or get a .55 as i have. If you want something that pulls harder up the top end of the rev range then the .63 will be the best.

As Stu put it to me: the .48 gives the greatest mid range torque. The .63 gives the greatest top end. the .55 is the best compromise of the 2

Lambchop

iTrader: (1)

i dont think i'd go up to .63 and tbh i suppose i'd rather have as little lag as poss

CossieRich

iTrader: (1)

stick with the .48 then, but i have been imformed at the boost i am running they have a tendancy to crack. When i took my .48 off there were actually 3 little cracks appearing 1 around the wastegaste penny hole. and that was at 1.7 bar on greens.

cossie4i+

iTrader: (15)

Have you had valve cutouts in the pistons to use the BD14 ?

Steve.

Cossie Helen

iTrader: (1)

Got to get the car right hun Otherwise i'll be waitinbg another month to get back over to Mark's as we have shows and dave working for the weekends after next, want the car right for Dorset


We still be out on Friday night

DazC

iTrader: (1)

Thats a question I was going to ask.

CossieRich

iTrader: (1)

Yes i have mate.

Stu @ M Developments

iTrader: (12)

Thats my opinion, sums it up well.

CossieRich

iTrader: (1)

Stu,

Im pretty sure the more people that read this post, the more will realise that greys and borewash are a thing of the past as well

CossieRich

iTrader: (1)

back up for the weekday people who may be interested

Stu @ M Developments

iTrader: (12)

I would hope folk already realise it Rich, it was down to bad mapping in teh past and nothing more, but you never know i guess.

bud-weis

sounds very good

would love to see a dyno chart for your spec

CossieRich

iTrader: (1)

So would I mate. But ive run out of money now

bud-weis

i know what you mean

would like to see the difference between your spec and mine with regards to cam and turbo,

i am organising a RR day,but it's a bit of a trek for you? top of GD if your interested

CossieRich

iTrader: (1)

I shall take a look Martin

CossieRich

iTrader: (1)

One of the 1st questions i was asked was: you sure you havent got bore wash. I said i wouldnt even be able to tell you if i have because i dont know the symptoms, but im 100% sure i havent because i have a pukka chip

RS500/364

Stu @ M Developments

iTrader: (12)

Infuriating

Borewash comes from running massively rich mixtures, especially at idle and cruise. As you know, your running almost perfect Stoiciometry at 14.6:1 and without any help from closed loop circuitry, so you can catagorically state, NO, you are not suffering borewash, in fact, under certain conditions its probably running marginally leaner than they did new. lol

CossieRich

iTrader: (1)

I did categorically state no i didnt have borewash. Amazes me how far the tuning world has come since the orignal days of greys. And 14.6:1 without closed loop is without doubt true hero mapping. Bare in mind people this chip was done for me by just telling Stu my engine setup i.e cr/cam choice/turbo etc. Stu has never been near my car or indeed even seen it which i think makes the achievements even greater

gingeRS

CossieRich

iTrader: (1)

wtf is that supposed to meen

CossieRich

iTrader: (1)

Seeing as my -31 actuator was at full pre-load i bought a -34 and back down to Marks this morning. We managed to get 34 psi, which Mark reckons is easily good enough for me to be in the 380bhp bracket

Very very hot day and my inlet temps were getting high even with the pro-alloy cooler doing its job. Maybe time for water injection to keep ACT's down.

Am over the moon with the chip and Mark setting it all up properly.

Big thanks guys

RS500/364

Be good when me you mark go for the next drive to a show will be a drive and very quick !!!!!!
remind me to have a chat about some things on tue i think you will like want i am just about to get rid of
and now i think my NOS kit needs to be sold or USED
just dont want the police to say

Stu @ M Developments

iTrader: (12)

Bloody boost junkies

rapidcossie

34 psi

CossieRich

iTrader: (1)

yes im a greedy cunt Boost junky is correct Stu

Stu @ M Developments

iTrader: (12)

wimwerf

So this chip is also available for a standard engine with standard cams..standard comp ratio but with all the stuff needed outside the engine...

or...

CossieRich

iTrader: (1)

Yes. You tell Stu the particulars of your engine and pay him the money. Stu goes away and writes the chip for you. Next day postman knocks on the door with your chip.