Graham Rudd Posted August 23, 2002 Share Posted August 23, 2002 I've had my Soop in its current state for probably close on a year now and although I thought the power was adequate I just can't help feeling my fingers twitching towards my wallet once again for a little more! This is perhaps being fuelled by all the talk on this board by people aiming for big power supras! I don't want to spend 10's of k more on the car so I'm going for something a little more achievable. So I was wondering what I would need for a realistic and reliable 450bhp, I'm hoping I've already got a firm basis. Here is the current spec: J-Spec 6spd Hybrid turbos, Blitz ECU, HKS EVC4 Boost Controller, HKS 'R' Spec FMIC, HKS Cams 256 In, 264 Ex, ERL Water Injection, TDI Uprated fuel pump, HKS Induction Kit, Chris Wilson front cat replacement, HKS rear cat replacement pipe, Super Drager 'Priest' exhaust, HKS BOV, Uprated clutch, Racelogic Adjustable traction control + launch, Tein Adjustable coilover suspension, Cusco Strut Braces front and rear, Steel braided brake lines, Chris Wilson Carbon/Kevlar brake pads, Greddy boost gauge My personal feeling is to firstly get something to sort out the fuel so I can maybe run higher boost. I'm sure that the blitz ecu does *something* about providing extra fuel, but I have no idea how much it can cope with. Besides, there isn't a lot it could do with j-spec injectors in any case. So what am I looking at? Bigger injectors and Mappable ECU or Fuel computer? Extra injector and controller? If need be I would be willing to upgrade to a big single, although I feel this may be overkill for the kind of power I'm looking for, I also don't really want any extra lag, it already feels laggy enough. I'm not really interested in the HKS twins either, I feel they're a little too expensive for what they are, and again probably over the top for what I'm looking for. Any advice/discussion would be fantastic, I'd prefer to do it the 'best' way, whatever that might be. Maybe I'm totally barking up the wrong tree looking for more power by upping the boost? Don't be bothered about flaming down whats already on the car as pointless, counter productive, etc. I'm in no way precious or protective over any of it, and would rather know if its not helping. I just want to make it a little faster now, its amazing how you can get used to silly power Many thanks, Graham Quote Link to comment Share on other sites More sharing options...
Alex Posted August 24, 2002 Share Posted August 24, 2002 Yep defo the injectors and gubbins to go with them. If 450 is as high as you'll ever want to go then 550cc injectors will suffice. If you know deep down that it'll be a stop gap then consider 680's or 720's all injectors are roughly the same price as the deisgn/cost to manufacture is the same just the apature is different. If the Blitz ECU is anything like my MINES one then it does a very nice job of richening up the fuel map. Hybrids - if built properly- should be good for up to 2bar but the manifold is a restriction so I would aim for 1.6bar to keep the heat down. The Blitz ECU is mappable but I don't know if it will accept bigger injectors of not. IanC has all the details on how to convert your j-spec to run UK spec injectors. As you have the pump you will need a resistor pack, 6 injectors and be able to do some custom wiring... With all the rest that you have I would say that once you've had the fueling config'd by CW or Leon it'll run about 450...but I make no promises. If that ECU can't do the fueling...well....you could be one of the first to try the Greddy E-manage system which has some nice features. The S-AFC looks trick and has certainly done the business for IanC's Hybrid setup which pulls like a train. The F-Con...I know least about as I understand it though it has less adjustability compared to the S-AFC. I would budget about 1k for all parts and labour... 450 for fueling parts 350 for a Safc the rest to fit and tune These are very approximate figures....hope it helps. PS - I'd be tempted to look into decreasing transmission losses through a TRD LSD or/and an RPS clutch (not sure what an uprated clutch is!) Also I would get a leak down test done. This will help you ensure that when you add more boost you won't blow every oil seal!! Quote Link to comment Share on other sites More sharing options...
GavinL Posted August 24, 2002 Share Posted August 24, 2002 Originally posted by Alex Holdroyd The Blitz ECU is mappable but I don't know if it will accept bigger injectors of not. I pretty sure that it isn't mappable. Quote Link to comment Share on other sites More sharing options...
Graham Rudd Posted August 24, 2002 Author Share Posted August 24, 2002 Thanks guys, first thing to do is find out if I actually have standard J-spec injector. I strongly suspect I do but I don't know for sure. Is there a simple way to find out? Something a rank amateur can do? Ian, if you get around to reading this I'd really appreciate any info you have on where you got your injectors, resistor pack and anything else you needed. In the meantime I'll see if I can find any info on the Greddy E-Manage system. Cheers Graham Quote Link to comment Share on other sites More sharing options...
GavinL Posted August 24, 2002 Share Posted August 24, 2002 Originally posted by Graham Rudd Thanks guys, first thing to do is find out if I actually have standard J-spec injector. I strongly suspect I do but I don't know for sure. Is there a simple way to find out? Something a rank amateur can do? Ian, if you get around to reading this I'd really appreciate any info you have on where you got your injectors, resistor pack and anything else you needed. In the meantime I'll see if I can find any info on the Greddy E-Manage system. Cheers Graham Graham, Why don't you contact http://www.racelogic.co.uk, they are big suppliers of blitz parts they may be alble to help you with questions on the Blitz ecu/injector options. Quote Link to comment Share on other sites More sharing options...
mark brown Posted August 25, 2002 Share Posted August 25, 2002 The Blitz ECU is not mappable I've had one fitted for 2 years. Fuel map is much richer, more ignition advance and no boost limit. Miles better than a standard ECU, best mod overall that I have done. I'm running it with Hybrids, 550cc injectors etc. You will need an SAFC to lean the mixture at low revs. Mark Brown Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 27, 2002 Share Posted August 27, 2002 Hi. Stock J-spec injectors have a grey-coloured plastic wiring connector on them, the UK-spec 550's have a nice light blue. There is also a part number on them, which you can just about read in situ on injector number one. I don't recall the number off the top of my head, but I can check one of the twelve spare j-spec injectors I have lying around at home I did some research on the fuelling parts and came to the conclusion that brand new bits from Jay Marks Toyota in the US was the way to go. New parts from the UK was laughably expensive, no-one here had 2nd hand bits, and 2nd hand bits from US tuning shops were priced so close to brand new from JM's I went for the new stuff. I ordered six injectors, a resistor pack, and a UK-spec fuel pump. It came to $850ish, including shipping, and they fudged the shipping docs once again so I didn't have to pay any tax. Get the injectors cleaned and flow tested (I sent mine to Chris Wilson) as you never know - one of these brand new injectors needed a bit of loosening up so it's well worth the £60ish it costs. My fuel pump was DOA as well, you may want to not get that from the US and instead speak to Terry Saunders or Chris Wilson about a Walbro pump. They fit into the j-spec fuel pump cage better than a UK spec one, too - bonus. I've got the photos and notes I made on performing the upgrade to 550cc injectors if you are interested. I think it's tucked away on my website at http://www.ian.chisholm.clara.net/downloads/injector_upgrade.zip Watch out, it's a big download. -Ian Originally posted by Graham Rudd Thanks guys, first thing to do is find out if I actually have standard J-spec injector. I strongly suspect I do but I don't know for sure. Is there a simple way to find out? Something a rank amateur can do? Ian, if you get around to reading this I'd really appreciate any info you have on where you got your injectors, resistor pack and anything else you needed. In the meantime I'll see if I can find any info on the Greddy E-Manage system. Cheers Graham Quote Link to comment Share on other sites More sharing options...
Alex Posted August 27, 2002 Share Posted August 27, 2002 Ian, he's already got a decent pump...better than UK spec. Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 27, 2002 Share Posted August 27, 2002 I got carried away. What with this, Motor City Online, and the AFC thread, my Techie gland has overheated. Not to mention my fingers. I'll have a UK spec fuel pump up for grabs soon, BTW Never used, brand new, in the box. Edited to add - my fingers are overheating because of all the typing, you loons. And Graham, you might want a shufty at the "Boost and Fuelling" thread if you are interested in AFCs. Quote Link to comment Share on other sites More sharing options...
Graham Rudd Posted August 27, 2002 Author Share Posted August 27, 2002 Ian, Brilliant, Fantastic, Great, Thanks etc. etc. for your documentation of the whole procedure, thanks to you I reckon even I would have a great shot at doing that upgrade. Now to order the injectors and resistor pack! Thanks again, Graham Quote Link to comment Share on other sites More sharing options...
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