Scott

18" makes a massive difference to the over/under stretch/bulge. 17s would allow even more flexibility. 285s will be absolutley fine on 9.5s, as 255-275 will. There will be an optimum but the wider the track the more straight line grip available.

There's a decent how to in my signature http://www.mkivsupra.net/vbb/showthread.php?247543-How-to-Attach-images-to-a-post-thread.

Wrong thread.

Any reason for ditching the ECU mate? I don't know if you have any other fuel prevention but the fuel ECU will cut the pump if the engine shuts down, having it a switched relay without the ecu won't. It's the main reason I want to keep the ECU in place but use a low enough pull up relay to make sure there are no issues with it dropping out

I'd rather be safe than sorry. When I get a relay I'll just make sure the drop out is less than 8v and it should be OK.

http://www.supraforums.com.au/forum/topic/27751-new-and-improved-12v-fuel-pump-mod/ Just going through the above just now. Good to see multimeters so will see what's said They've gone with the same as you guys. It doesn't sit right with me at all but I guess the range on the relay selected is what matters?

So you are running your relay off of 9v until 4krpm? That doesn't sound safe to me.

I'm thinking it may be a lot of he said/she said kinda thing without anything actually being tested properly. My query comes as I've read a lot about people using the stock wiring to activate a relay, then using a 12v source to power the pump directly. That all sounds fine but there's surely an error in that. There's a 12v "in" to the fuel pump ECU and a 9/12v "out" from the ECU which goes to the pump. The 12v "mod" bypasses the ECU by connecting the 12v "in" and the 9/12v "out" making it a 12v constant. If you use the 12v "in" for your new relay circuit you're as well taking out the fuel pump ecu altogether, it's not being used at all. If you're using the 9v/12v "out" there's a danger that the 9v may not activate the relay or may drop at any point causing real issues, additionally I don't get how this benefits the system. The Syvecs has a fuel pump 5v trigger onto a 12v relay (I guess). This then activates the fuel ECU/relay/whatever and allows the fuel pump to run. I'm thinking I can just connect this "out" directly to a high amp relay in the boot to control the fuel pump with a heavy duty 12v line. I don't

Would that not mean that you're using a 9v signal to actuate a 12v relay? Is that not a little risky? BTW I didn't mean just to feed 12v directly to the pump, I meant use the 12v via a relay to power the pump. Give me some credit Also, are you sure your information is correct in regards to what sends the 9v signal? This guide..... http://mkiv.com/techarticles/12v_mod/12v_mod.htm Suggests that it's a signal from the std ecu that tells the fuel ECU to switch between low power and high power. Does the Syvecs still retain this function? (Or any other ECU for that matter). It's this sort of information I'm trying to weed out as there's so many people with so many opinions on how it works.

Just thinking out loud (voltage drop). I have a 0 gauge cable running from the fusebox to my boot for my various amps. I'm using a block to split the 0 gauge for the amps, I'm thinking it would be beneficial to use one of the take offs from the block in order to power the fuel pump given the size of the core. Any issues with this?

I've got a few queries regarding wiring up my fuel pump. I'm currently running a stand alone ECU (Syvecs) which outputs to the fuel pump ECU to turn the fuel on. With this in mind, am I right in thinking that the fuel pump will be in 12v mode all the time? If not, what is it that controls the 9v/12v switching? What wiring should I be switching out? I guess 12awg is plenty for most setups? I'm only running a single Walbro 450 pump so I would imagine that would be plenty? If I was to upgrade and run 2 pumps the second would have its own 12awg feed anyway. What is overkill and what is worthwile? Should I just make a completely standalone system from the battery/ecu to the pump with my own relay etc, or is some of the wiring in the system useful? There's an AWFUL lot of sketchy information around, with varying opinions on what way to go. I'd love to hear what people run in their cars and what sort of power you guys are running. Ideally, if the fuel pump ECU worked, I'd like to leave everything in place and just beef up the wiring from the fuel pump ECU. I only want to do this job once though so I want to make sure I'm going the right way about it. Thanks

Looking to fit a bit of new wiring to my fuel pump assy. I need the pins that connect to the pump plug so that I can replace the wire without doing a cut and shut, the new wire is a slightly heavier gauge too so I'd rather go all the way to the pin. I've uploaded a couple of pics, next to a screwdriver bit for scale. Is there a way to identify such pins? Seems like there's a million to choose from

Started on the new fuel pump & hanger tonight. Going for an AN8 feed with an AN6 return.

There's a slight bulge at the lower end of the tyre but that aids the grip and allows a bit more compliance. This is on 19s though, on 18s I doubt there would be any noticeable bulge, again it should aid compliance. I can't really comment on how it feels on the road at the moment, it goes well and holds fine but the alignment hasn't been touched and I just threw on all new adjusters so I haven't driven it in anger properly yet

Rim width plays no part in whether it scrubs or not. Its all down to tyre width and offset. If your last wheels were a similar offset (+35) then this fitment will be exactly the same. Will sort you out a pic now bud.

I'm on 295s on my 10" rims so I think 285s on 9.5s would be fine. The rim protection is excellent

It's all about the tyres. The extra width is useful for where the offset is different from stock. The extra width helps offset the smaller offset. Those don't look like 9.5 et10s though, they look like 11s.

That's looking great. It's almost a shame to drive it

I would be surprised. You would need a mental stretch on them with loads of archwork. I have 10" et20's and I get rubbing on a widebody with overfenders (295mm tyres). I could easily get away with bigger wheels and keep the same tyres though so all that really matters to scrubbing is the offset and tyre width.

Look forward to how this one turns out. Very good setup choice. No need to upload to photobucket for bigger pics btw (you need to have them on the site for your thread to be changed to a project thread) simply use ] tags as suggested instead of "[attach"

I read the other side on their FB page. Turns out Denial isn't just a river

It happened in the comics

He meant DC

Indeed, she's definitely the Female of the moment for me. Looks absolutely smoking hot in this with a complex character so she's only going to get better in my estimation Yip, I'm really looking forward to them. If Batman isn't Batman in Batman Vs Superman it'll be the best superhero movie ever IMO. I don't think the writers have been that clever though.