Sheefa Posted April 23, 2007 Share Posted April 23, 2007 No problems - I'll give you a shout in the next week or two if you like. I have a fields harness too so it all simply plugs in and you're good to go. (Apart from making sure it's mapped right) Might be tearing it apart this weekend..... Thanks Wez. Yes, please do Soop. My ECU wiring has already been chopped and changed so would the fields harness be of any use, really? Cheers. Quote Link to comment Share on other sites More sharing options...
Soop Dogg Posted April 23, 2007 Share Posted April 23, 2007 Thanks Wez. Yes, please do Soop. My ECU wiring has already been chopped and changed so would the fields harness be of any use, really? Cheers. Well that sepends on how much it's been chopped already - but I'd say it's still worth it if you're oging to install and E-Manage as you're going to be doing A LOT more choppiing to install that! My fields harness is also kitted out for RLTC should you ever want to fit that too. Plus, you can take it all to you next car and save yourself loads of work there too... Quote Link to comment Share on other sites More sharing options...
Sheefa Posted April 23, 2007 Share Posted April 23, 2007 Well that sepends on how much it's been chopped already - but I'd say it's still worth it if you're oging to install and E-Manage as you're going to be doing A LOT more choppiing to install that! My fields harness is also kitted out for RLTC should you ever want to fit that too. Plus, you can take it all to you next car and save yourself loads of work there too... Thanks mate, here's the other thread I started a while ago you see. http://www.mkivsupra.net/vbb/showthread.php?t=107131 I already have RLTC hardwired into the loom, along with the Fuel Cut defender, speed delimiter etc. But I thought about rewiring the entire loom and putting some decent bullit connectors on it. Sounds good to me this harness. Cheers. Quote Link to comment Share on other sites More sharing options...
Gazboy Posted April 23, 2007 Share Posted April 23, 2007 If you run anything above 1.2bar your fueling is the hands of the gods on a J-Spec as the map sensor only accurately reads upto 1.2bar. Could you put a map sensor in that could read higher than 1.2bar? Or would that be a waste as the ECU cannot read the information given at those boost pressures? I assume this is what is meant when you read Escort Cosworths having 3 bar map sensors??? Speaking of which there is a Cossie in a mag with a HKS51R at 3.2bar! Quote Link to comment Share on other sites More sharing options...
Wez Posted April 23, 2007 Share Posted April 23, 2007 A map sensor is rated between 0-5v as this is what the ECU sees. The stock map sensor might read 1v atmospheric a larger map sensor would read 1v 0.5bar, so nope, as the stock ECU cannot be recalibrated, these are not true figures just an example. I think the EM units have a new MAP sensor input which is configurable and therefore allows you to map over 1.2bar. Quote Link to comment Share on other sites More sharing options...
Nic Posted April 23, 2007 Share Posted April 23, 2007 In terms of getting the most out of them, would 550s and a RP with a EManage Blue be sufficient, or is it really even worth it? Greg I have a set of brand new HKS 540cc injectors available on special offer at the moment, see details HERE These fit the stock rail and are high impedance so no resistor pack required. I'd personally go for the Emanage Ultimate instead, lots more features and less than £100 extra for the full setup. Give me a shout if you want details. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 23, 2007 Share Posted April 23, 2007 Greg I have a set of brand new HKS 540cc injectors available on special offer at the moment, see details HERE These fit the stock rail and are high impedance so no resistor pack required. I'd personally go for the Emanage Ultimate instead, lots more features and less than £100 extra for the full setup. Give me a shout if you want details. Link not working Nic. drop in high imp injectors sure would be easier than messing around with resistor packs! Quote Link to comment Share on other sites More sharing options...
Nic Posted April 23, 2007 Share Posted April 23, 2007 Link not working Nic. drop in high imp injectors sure would be easier than messing around with resistor packs! Darryl link now fixed. Quote Link to comment Share on other sites More sharing options...
Wez Posted April 23, 2007 Share Posted April 23, 2007 Details in the link says low impedance? Quote Link to comment Share on other sites More sharing options...
Nic Posted April 23, 2007 Share Posted April 23, 2007 Details in the link says low impedance? I'm confusing myself now I think they are high impedance but I better check the catalogue tomorrow. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 23, 2007 Share Posted April 23, 2007 Yep! EMU is the way to go, just add the Greddy MAP sensor and your good for more boost;) Quote Link to comment Share on other sites More sharing options...
heckler Posted April 23, 2007 Share Posted April 23, 2007 when i had my hybrids fitted, with an Em Blue (stock 440s) there was an increase in performance, especially when the second came online. I went to 550's and it over fuelled like a bitch. As soon as it was mapped by Mr. C. Ran like a dream, AFR's were spot on, deffo increase in overall performance over stock and hybrids with 440's. I'm not sure what BHP its producing.. enough for now. But this was all done before singles were "affordable" Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted April 23, 2007 Share Posted April 23, 2007 Im seriosulsly considering hybrids after seeing many big power singles still putting down the same times as BPU cars at the pod, it was a real eye opener for me seeing many a big power car just spinning up the whole way down the strip and has really made me step back and think, it seems a shame to waste the twin technology toyota first created in the first place, and has got me thinking, is 500bhp really worth having? I know the hybrids will be slightly different to stock turbos in the build, but the workings are still the same, there must be a way to run hybrids with near as damn it reliability as the stock twins if done properly...surely? This is all in my opinion of course, no offense intended to anyone with well setup singles on board Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted April 23, 2007 Share Posted April 23, 2007 I think its down to 2 things. 1. Fuelling 2. Cooling If you got enough fuel going in and good cooling you've got a good mix in the chamber and more importantly safe mix. I also think reliability depends on the build of them. I.e you might have them for 5000 miles and they are perfect, but then they blow so they were reliable but didnt last long. Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted April 23, 2007 Share Posted April 23, 2007 I think its down to 2 things. 1. Fuelling 2. Cooling If you got enough fuel going in and good cooling you've got a good mix in the chamber and more importantly safe mix. I also think reliability depends on the build of them. I.e you might have them for 5000 miles and they are perfect, but then they blow so they were reliable but didnt last long. I think if I were going to do it, water injection and a whole host of cooling ideas would be added, the build quality would be essential but didn't Ian C have a set on for nearly 20k miles with no problems Quote Link to comment Share on other sites More sharing options...
Gazboy Posted April 23, 2007 Share Posted April 23, 2007 Just get them from someone with a good reputation for walking the walk. Quote Link to comment Share on other sites More sharing options...
Soop Dogg Posted April 23, 2007 Share Posted April 23, 2007 but didn't Ian C have a set on for nearly 20k miles with no problems Yep - and I ran the same set for about 7,000 too - they are an absolutely cracking set of turbos. These are about to go in an advert in the 'For Sale' section too, so I suppose you might say that I would say they are great - but really - they are the best twins I've experienced. I'm only selling them because I'm moving on from the Supras. Our cars will be up for sale soon too. Quote Link to comment Share on other sites More sharing options...
Stevie Boy Posted April 23, 2007 Share Posted April 23, 2007 Yep - and I ran the same set for about 7,000 too - they are an absolutely cracking set of turbos. These are about to go in an advert in the 'For Sale' section too, so I suppose you might say that I would say they are great - but really - they are the best twins I've experienced. I'm only selling them because I'm moving on from the Supras. Our cars will be up for sale soon too. Who rebuilt the turbo's your selling? Are they actually the same set Ian C had on his car or just same company who rebuilt? Not sure if i missed it but are they rebuilt j-spec or UK? Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted April 23, 2007 Share Posted April 23, 2007 Yep - and I ran the same set for about 7,000 too - they are an absolutely cracking set of turbos. Without being bias how would you say they compare to say a BPU j-spec set of tubbies, im really considering these over a small single setup as I love the sequential setup Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 23, 2007 Share Posted April 23, 2007 Blimey I've missed this thread so far Unmapped 550cc injectors: I know from painful memory that unmapped 550s cause lots of problems. I had an Apexi sAFC that went wrong in a stealthy fashion, in that the unit seemed to work and showed all the right numbers and stuff, but in fact wasn't changing the airflow signal at all. This meant I was running 550s on the stock ECU that was mapped for 440s. So, as has been said already, 25% more fuel across the board under every situation. It would just about idle, but it would try and stall when you revved up and lifted off, which made junctions and slow manouvres a challenge. Cold start idle was appalling, and apparently it spat blue flames out the back when on boost Strangely it used a lot of fuel too Took me 3 months or so to fix that and I went through every damn part of the fuel system and ECU strategy. The perennial hybrid discussion: I've sorted a stock turbo'd BPU 440cc motor with an E-Manage and I had to pull out roughly 20% airflow signal. With my old hybrids and bigger injectors it's a little more airflow removed, about 25%. What all that means is that you need about 15-20% more fuel in to feed the hybrids at the same boost level. This is a rough calc, real back of fag packet, but the point is there is a clear difference in the amount of fuel needed by the hybrids, and more fuel to maintain the same AFR = more power. So yes, they do give a power increase, if you get a good set, 15-20% more wellie (which is pushing 450bhp). However. There was a period before single conversions became more mainstream where they were really the only performance option on a budget. This meant you got the usual crowd of fly-by-nighters that would give you poorly rebuilt stock turbos and claim they were "stage 3" or whatever hybrids These, of course, a) gave no real power increase and b) blew up a lot, thus giving hybrids the bad name they have now. I personally lucked out and got my car with the strongest set of hybrids I've ever encountered, with Hecklers coming a close second. This was before I knew jack about cars as well. They would run 1.4bar and still give power gains (1.5bar+ lost power significantly), stockers cough their lungs up at 1.2. They were all steel, so they deffo felt more laggy when at low (2000) rpms on the first turbo, but hardly undrivable. At 1.4bar I ran at TOTB1 and 2 and got pretty good top speed runs (around 170mph) and the EGTs stayed below 950degC (just). It was pushing the edge of what you could do with the stock turbo setup, for sure, but the power was certainly there. Against BPU they did indeed walk away - cams and an FMIC helped there too, especially for keeping the EGTs down. So there you go. Get the right hybrids and you're laughing, and it's easier-life than a big single conversion IMO, apart from the hell of swapping the turbos And yes, they are damn fast in 1st/2nd/3rd gear. Me, I do a lot of dual carriageway type driving so the single is fantastic off roundabouts and down sliproads, so I'm happy with the path I took. I'd never have a stocker, if I had to have a sequential based system I'd want my old turbos back! My T67 at 0.8bar feels as strong as the hybrids used to at 1.4bar. That says I lot I feel. -Ian Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 23, 2007 Share Posted April 23, 2007 Who rebuilt the turbo's your selling? Are they actually the same set Ian C had on his car or just same company who rebuilt? Not sure if i missed it but are they rebuilt j-spec or UK? Same set I had Unfortunately they are a mystery as to who made them No markings, and the previous owner to me had them fitted and promptly forgot everything. Without being bias how would you say they compare to say a BPU j-spec set of tubbies, im really considering these over a small single setup as I love the sequential setup I said a lot above but if you want a ballpark I'd say 80bhp more power, especially being able to run 1.4bar. You stick on a big FMIC and 256in 264ex cams and you can push 450-480, maybe 500 on a good day, I never tried water injection so that might help . BPU you'll struggle to reach 400. -Ian Quote Link to comment Share on other sites More sharing options...
Soop Dogg Posted April 23, 2007 Share Posted April 23, 2007 Who rebuilt the turbo's your selling? Are they actually the same set Ian C had on his car or just same company who rebuilt? Not sure if i missed it but are they rebuilt j-spec or UK? Erm, I think Ian has said far more than I could about these hybrids. The set I've got are the set that Ian is talking about. I fitted them about 16 months ago after he sold them. They've not been rebuilt - they don't need it - there's no play in the spindles and there's no leaks in the seals - they're all good. Quote Link to comment Share on other sites More sharing options...
leonv Posted April 23, 2007 Author Share Posted April 23, 2007 I defenitely have enough information now to take the next step to try and get results from my mods. I appreciate all the input :d :d Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted April 23, 2007 Share Posted April 23, 2007 Same set I had Unfortunately they are a mystery as to who made them No markings, and the previous owner to me had them fitted and promptly forgot everything. im sure a big company like garrett could sort something out there probably the boys to talk to I guess or turbotechnics in terms of spool is there a lot of difference in hitting positive boost, the thing that worries me is the reliability thing Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted April 23, 2007 Share Posted April 23, 2007 seems like your a bit happier now Leon. Justifiably you wernt too impressed on the day. Quote Link to comment Share on other sites More sharing options...
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