andy130

iTrader: (2)

car is fitted with 195 setup what benefit can be had from fitted it? thanks

1.9 xr2 on 40's

big difference everywhere, much better power and progress thru the revs

andy130

iTrader: (2)

just with bigger valves?

1.9 xr2 on 40's

you wont put big valves in without it being ported out at the same time
wheni fitted a stg 3 head to my last rs it was excellent, loads more power but louder exhaust too


i used to break rs's up and kept the best bits and the best head i kept was brand new big valves nice big round ports and some fancy cam, really worth it.

Canada1

I totally disagree.

With a 195 HP engine oversize valves are certainly not needed. A proper valve grind with the standard valve sizes (which are very large) is more than enough. Better ways to spend your money. Also most of the large oversize valves are crap. They do not have hard chromed stems and the material is soft. Some simple porting of the inlet ports just before the port turns into the bowl area can be a great benefit. Also remove the valve guide part that protrudes into the port (worth much more than you think) On the exhaust side just radius the sharp edge ever so slightly - makes a big difference too.

Only the cross hatched heads have enough material to enlarge the port size enough to take advantage of the larger valves anyhow. Ports only need enlarging like this if you are looking for well over 250 hp (higher rpm power)

Rogeyboy

iTrader: (2)

Perry, if someone was to send you a head. How much would you charge to "modify" it and flow test it?

bomsch

iTrader: (1)

Send it to me, will cost around ~450€ with flow testing before and after.
As a matter of fact i have stock RS turbo head just standing in my garage

Versus_Creations

iTrader: (1)

bomsch

You obviously havent been on here long. Offering parts and services tends to make traders and other bedroom wannabetrader/sellers pissed off.

Perry is right after learning the hard way like most of us, a 195 setup will have no great advantage to fitting a big valve head. In fact make it less responsive. The fact of the matter is you have a 2 bar map sensor so having an engine designed for more power and only running 1 bar of boost is pointless.

You would be better off saving the money and putting to towards a management system that can control your engine better and produce the power it can flow in std form. Around 230ish bhp wih std T3 and head etc..

luke19790_3

like megasquirt

Versus_Creations

iTrader: (1)

If thats what you want to use then by all means do so.

luke19790_3

cheaper then that overpriced 2nd hand cossie stuff plus afew people have it so can help with settings etc

Versus_Creations

iTrader: (1)

How is a second hand L6 ecu worth £100 overpriced, for what it can do far better than any batch firing management system.

Same goes for all the sensors and wiring loom. There is nothing overpriced about it.

A cosworth type loom is £100 worth made by a company for production cars! If you really want to save money then use a fiat or lancia or duccati loom from a breakers for £50 this will be far better than someone in their bedroom making one with bits of wires and plugs from an old scrap loom how much is a megasquirt loom going to cost to have made or how much time will it take for someone to make it to a good quality. Think of the price of each connector then tell me its value for money or value for time!

If you want to talk about management systems better than having weber, then you would need to use the likes of pectel, autronic, life racing to name some of the worthy ones. All these use the same sensors as a weber ecu and all work in a very similar way.

You also go on to say about getting help from others. This is great but how many tuners will give you support and even want to map your engine. Unlike a weber ECU which can be tuned in pretty much most citys in the country.

There is loads of downsides to fitting megasquirt or any other system but thats not what this post is about.

jonny s2

iTrader: (12)

Big valves are not really needed, as cvh valves are already big, choose which ever management you want, but webber is great

luke19790_3

i got mine from efiextra which made and tested for £360, then used a ford efi loom.

there are companys out there who map them, mtech + more but can't remember at the minute

never said it was better then the (overpriced ) cosworth gear, but for what he's after it will do the job very well and at a good price.

+ you have the added bonus (apart from injector loom) that all the parts all new and if you want you can plug your laptop into ms2.

luke19790_3

it is, i was going to fit to my S2 but the only thing that i didn't like was the fact that every time you have problem with it you need to take it to a tuner who knows it.

Versus_Creations

iTrader: (1)

Luke, you have just contradicted yourself mate.

£360 is for what exactly?
Not the ECU surely! How is that value for money and not overpriced then?

Then you say you can buy all the sensors new, well obviously you can buy any weber sensor new too so there would be no difference in money, if anything you can find secondhand weber sensors for great value for money all over the UK and Europe.

Lastly as you said "a" tuner may map the ecu for you. But the big question is at what price. I can safely say it will cost more than £150 for a weber ecu if you can find someone.

As for laptops being plugged in.
Where have you been hiding for the last 20years, laptops have been fitted to a cosworth ecu for decades plus loads of after market gimmicks and gadgets like monitors and interfaces etc.

have a look on l8ecu.com as simon gives out free software to connect to a cosworth ecu for your laptop.

Versus_Creations

iTrader: (1)

If its fitted properly and using the correct parts you wont need to take it anywhere as you wont have problems.

Even if you do, using a laptop with the free software above will more than likely avoid having to use a tuner to diagnois problems.

Worst case if you did need a tuner it would cost less to fix over most other systems.

luke19790_3

didn't know about the free software thanks

so what is going price for a company in the south of uk to supply and fit a cosworth setup to a S2?

Versus_Creations

iTrader: (1)

That i cant say, pretty easy to find out tho, ring around and see what you find out.

bomsch

iTrader: (1)

How to you hook proper cc injectors, Wideband, EGT, Launch and shift light with your L6? Is there option to datalog your engine?

Canada1

I wish I had looked into the Cosworth L6 or L8 ecu's before I purchased the Haltech.
I would have saved many $$$.
I do like hex numbering too.

I have had some experience with an old Cosworth ECU from the 1980's
It used a programming board for the ecu to make changes.

luke19790_3

for £360 you get a ecu, wasted spark and software so you can map the car. so cheaper then a £100 second hand does it work cosworth ecu + the £400 for a wasted spark conversion

Rob_DOHC

iTrader: (4)

Lol this is going to turn into a priceless thread. If I wanted to I would fit l8 not l6, Which is by no means £100. Loom (brand new not 20years old) made specifically for an rs turbo £150 ms ecu which does fully sequencial fuelling, drives t a coil pack directly, launch control, flat shift, closed loop fueling in an OEM class case (with proper automotive class connector) under £400.

Find, fit and map l8 for that then add wasted spark, closed loop fueling and launch control. I know several people who have gone down this route who have been sorely dissapointed because of it.

The usual tuner excuse regarding shoddy assembly and DIY fitting doesn't really apply any more. It would be nice if more tuners stopped slagging and started mapping ms, there's a good market for mapping alone.

luke19790_3

shame no one has made a megasquirt ecu which can plug into the old efi loom with no mods , got to be a better option then that cossie stuff

xr2wishy

iTrader: (2)

a patch cable could be made, but cost would be the factor.
nothing wrong with megasquirt, but it's like starting a map from scratch until you know how to work with it.
l8, l6 etc has already had years of development, megasquirt is very very capable and depending on spec of ecu (much like omex in that respect) you can have some pretty awesome functions and make loads of switch-able outputs.
best thing is understanding how an engine operates during various states of engine running.

J1mbo

iTrader: (1)

I havnt read the thrEad but there would be no benefits, my 303bhp engine ran standard valves so deffinately don't bother, a very very mild port is best just to take any sharp edges out of the port, and angled seat with back cut valves

Canada1

Back on topic!
Jimbo is 100% correct.
The standard valve size is not the restriction or bottleneck.

muz

And who says the CVH head is shit, eh?