Stephen

Just rebuild the core and have it balanced mate.

The harness often fails between the plug and the sensor. I deleted mine years ago. Using the harness as a plug in with the 1 Mega Ohm resistor.

Because the covers are smoked rather than 100% clear, it darkens that red off and it looks the nuts. Good move.

Fantastic engineering going on here, looks like the trip around the world for your engine is really worth while.

I’m in a slightly more patient mood today so il explain what I was on about in respect to the injectors abilty as such. The numbers below are theoretical and you can’t expect that x = y exactly every time it’s merely a guideline. The fuel map, on the ECU, has a margin for error. That’s about 20%. Thus doesn’t allow you to add more than the margin within that map. Most chips etc are an extrapolation of the stock map. As per the stock map and iterations of it; 3 bar fuel pressure @ 100 duty is 370cc, sufficienct for 370hp @ the fly. This is a smart thing for a manufacturer to do to a car for a world market. If we lift the restriction of the ECU so that 100% duty is 100 of total fuel delivery, with no redundancy or margin for error, the injectors can flow; 3 bar fuel pressure @ 100 duty is 370cc sufficient for 425hp @ the fly. Of corse this is a silly move, no error compensation and everything flat out. The total flow ability for 425hp is limited by the safety margin, which conviently lands us at 370hp at the fly with the stock margin for error. Injector size is equal to peak fly HP. As far as the ECU is concerned we are alt 100% duty but we’re not we're at 85%. So, for example we lift the stock ECU restriction so 100% flow is 100% duty and do not run past 90% duty that gives us 10% margin for error, not enough for a manufacturer but for a custom map, that would be “ok”. 3 bar fuel pressure @ 90% true duty on 370cc injectors is sufficient for 381hp @ the fly. So 17 psi on stock Turbos is about 365hp @ the fly. For a 90% true duty cycle you’d need 355cc of fuel per cylinder per minute. So as you can see @ 365hp your under your safety margin by a fair way. At this point you’d be pulling about 65psi on the fuel supply to supply the correct fuel pressure. At this point the factory knock sensor became useless a fair while ago, the factory boost gauge has been off the clock since lunch time and o2 sensors have quit. The only thing looking after things is the ECU with all the processing power of a SNES your passenger is stood on. This is true wether your at 12psi on 370s or 21 on 740s and a crap chip or poor mechanical health you will kill it. If you’ve got money burning a whole in your pocket, for what 740s cost to instal you’d be better off buying nistune and an AFR or better yet a stand alone with failsafes. In short, in my grumpy opinion, 16psi on the RIGHT chip will net you about 365hp and less than 90% true duty.

Obviously the GT525s are moving more air at 9 psi than a T22/5 at a similar pressure. Which creates a leaner ratio. As nicks said, you need more information to answer that.

Sorry, yeah you did say that.

Has your calculation taken into account that fuel pressure at 14psi isn’t 43.5psi?

Inflammatory wording by myself admittedly but not a fabrication.

There’s the point of contention. I’m saying he doesn’t need bigger injectors for 17 psi to be safe, just a suitable map, you believe that stock injectors cannot supply enough fuel for that boost level. Am I interpreting our difference incorrectly?

I started by expressing the case that I believe you were stating it was necessary to fit 740cc injectors to run 17 psi on stock Turbos. This isn’t a fact. You stated that was ok to run upto 15 and then your at max duty cycle. Not the case. I called you a pedant because you made a point over a 1 psi difference. You pulled the, you’ve changed since you had a child card. I pointed out your hardly one to talk about people’s attitudes. Then edited your post to point out you were banned 10 years a go, which may be the truth but it’s probably a mere five since you begged to return after spending your time slagging the club off on a break away forum. Lots of people have and have had a problem with you Simon, your well aware of it and I’ve defended you in the past saying you’ve changed and he’s not like that in real life he just comes across badly sometimes but I’m feeling less and less that’s the case. Does that about cover it?

It’s not a case of big man, it’s a case of history. In fact maybe your just more subtle at it these days, I have no doubt you’ll be slagging me off later for daring to having an opinion different to your own. I’ve stood your corner on numerous occasions over the years but you don’t make it easy.

Maybe it’s jyst allowed me to view the world in a different way, step out from the echo chamber and see a few things with more clarity. On the subject of what I’ve become need I remind you how this club has previously banned you for your antics and attitude. It wasn’t that long ago you had to beg to come back after upsetting so many members. As per usual your confusing your opinions with facts.

I’m not going to waste my time arguing with your Simon, certainly not on some pedantic level of one 1 psi, you know for well the point I’m making. Fact remains it’s safe to run 15-17, damn probably 19 psi on stock 370cc injectors with an appropriate map. Heat from the stock Turbos is the limiting factor. How much PSI your running is not a direct correlation to BHP. Go do some calculations on the volume of fuel required and the volume the injectors can supply. If what you were saying was true, I wouldn’t of being pulling AFRs in the 10s at 18psi to start with. Enjoy driving around with injectors running at about 30% duty at WOT. At least you can be an internet hero and tell everyone what you’ve brought.

Your at a good stage, pushing past where you are complicates things.

Your implication is that you need to upgrade your injectiors for 16 psi. This isn’t correct. Furthermore without detail it may appear to the op that he requires not 555 which are actually 615 but 740s to achieve that. I realise you chose to install 740s for your own personal reasons but they aren’t required, 740s have enough head room for over 700 fly wheel horse on 95 Ron. All that’s required for 16psi is a good map and healthy system with some minor bolt ons, which will dyno at roughly 360-370fwhp. Currently he’s probably pushing about 330ish. Stock injectors are safe at this level and the real risk is preignition from excessive temperature or poor timing on the map. The majority of engine failures are map and supporting equipment related.

:glare:

Indeed, so many people seem to think we live in a country with a presidential system.

By how much has that sump increased oil capacity then? Pick up tube is certainly different to stock.

As usual Jeff you miss the point. When you and others bitch and moan about people’s cars, talk down their worth and value as if they are literally a complete an utter turd you paint yourself and the club in a poor light. Ironically these are the same people proclaiming that £5-6k is a fair price for a manual TT in even a remotely fair condition, desperate to talk up values. Many active and good people have walked away from the club or faded away due to a minority of people and thier opinions. These days there’s about half a dozen active users on here and what used to be an active hub has become a clique. You sir have done many good things for this car and it’s scene in years gone by but bitching about what’s for sale isn’t one of them. In a few years time when the club ceases because it has no members think back to the sorts of attitudes and opinions expressed in this thread and observe the correlation. Where will people post pictures of bags of over overpriced OEM screws.

Sorry but from a poor ad of an overpriced car how have we established it’s an utter turd? The interior has been dicked about with and left very unfinished, but the exterior looks alright... someone has spent lots of money on it at some stage, wether it’s been messed with after that ownership or they lost interest/prioritised poorly is up for debate. What it’s guilty of being is overpriced with a poor advert but referring to it as a lemon and not worth £5k, if it’s not worth £5k then neither are most that are about. If you were on the hunt and saw this thread, it might make you pick a different zed but I guarantee you it will make them pick a different club to join...

Take a photo of your leak. The passenger turbo has quite a bit of room around it, you just need to know where to play with it.

Surely something smaller but readily available could be found, say off a Fiesta then a adapter set of pipes and bracket made. Not hard.

Best to check but there where some amendments to this stuff. The old ignore it advice isn’t always right anymore.

I’ve done the same to mine Nick, although I didn’t fit a fancy pants grill :lol: big old Stanley knife hole.