mkirby Posted December 2, 2004 Share Posted December 2, 2004 Hi Guys and Gals No doubt i will be asking lots of questions as i have just picked my first supra up today I have owned 300zx's for the last few years but thought i would have a change but i have a few niggling problems 1 - When i boost the warning light comes on in the middle of the dash and the engine warning light as well so is there anyway of doing a ECU check or something else to see why it comes on? If i turn the engine off it goes off and when i drive it stayes off but as soon as it put the right foot down it comes on??? any ideas 2 - Theres a few bits of trim missing from the car ie the upper glove box cover, the trim from boot that covers all the wires etc and parcel shelf/blind (not sure whats meant to be there but its a blind in the 300) 3 - Last and prob most worrying when i boost hard it feel awsome but when i let off the car wants to pull left like a jerk left?? any ideas Sorry to come on and ask loads of questions Many thanks Mike Link to comment Share on other sites More sharing options...
Jake Posted December 2, 2004 Share Posted December 2, 2004 Hi Mike Originally posted by mkirby 1 - When i boost the warning light comes on in the middle of the dash and the engine warning light as well so is there anyway of doing a ECU check or something else to see why it comes on? If i turn the engine off it goes off and when i drive it stayes off but as soon as it put the right foot down it comes on??? any ideas Some more info would help: Does it always do this? Does it do it if you build the boost more gradually? Do the warning lights stay on until the car is switched off or do they go off after a while? Is the car a UK or J-spec? Is the car decatted? Does it have a boost guage? Does it have a Fuel Cut Defender fitted? Link to comment Share on other sites More sharing options...
mkirby Posted December 2, 2004 Author Share Posted December 2, 2004 Hi there Its a Jap import Yes its been decatted Yes it has a boost guage and not sure if its got fuel cut defender?? and yes once its on it stayes on until i switch the car off Cheers matey Mike Link to comment Share on other sites More sharing options...
LeeT Posted December 2, 2004 Share Posted December 2, 2004 Originally posted by mkirby Hi there Its a Jap import Yes its been decatted Yes it has a boost guage and not sure if its got fuel cut defender?? and yes once its on it stayes on until i switch the car off Cheers matey Mike imo first thing to look at is fcd. if youve got decat on a j-spec you are hitting fuel cut 100%. what is your boost reading? anything over 1.2bar is too much for a measly j spec:D Link to comment Share on other sites More sharing options...
mkirby Posted December 2, 2004 Author Share Posted December 2, 2004 Its running large injectors 850cc if i read japanese right!!?? The car itself seems to be fueling fine in the higher range but under 3k very lumpy i think its gonna need a new remap but could this "lumpyness" cause the ECU to throw up a fault? Please ignor my stupidity i just havnt a clue...yet about supras but will pick up quick!! Cheers Mike Link to comment Share on other sites More sharing options...
Jake Posted December 2, 2004 Share Posted December 2, 2004 What's it using to control these injectors? What other mods does the car have? I presume you're not running the standard j-spec turbos if you've got those huge injectors. Link to comment Share on other sites More sharing options...
mkirby Posted December 2, 2004 Author Share Posted December 2, 2004 No its running a trust T88 single. I dont think its been set up properly in this country for our fuel IMO but i am thinking of changing the ecu as i dont know whats in it and its a dangerious thing not knowing so what controlling your car!! what programmable ecu's would you recommend?? Also is there any good people who sell used parts for the missing bits?? Thanks again Mike Link to comment Share on other sites More sharing options...
Ian C Posted December 2, 2004 Share Posted December 2, 2004 1. Have a search for "error codes" and you should find the procedure to check for them. It's easy enough. It could well be a dodgy delimiter messing up the vehicle speed sensor signal to the ECU. This only flags a fault code under load, i.e. when you hit boost. 2. The upper glove box trim missing is a worry, as this is a common place to put aftermarket gauges and controllers. If there were controllers and they are gone, then whatever they were controlling isn't being controlled any more If it's gauges, that's annoying but may not be lethal. 3. This could be low pressure in your rear right tyre. A word of advice, and you may not want to hear it but I'll say it anyway, if it's so highly modified, in an unknown state of tune, may have had bits removed, and you admit you know nowt about them yet, you should at least get the fuelling checked over if not a full inspection by someone who knows about them and is recommended by people on the forum. Forty quid at your local rolling road is better than five grand for a new engine to get swapped in... -Ian Link to comment Share on other sites More sharing options...
mkirby Posted December 2, 2004 Author Share Posted December 2, 2004 I agree that why i will prob see peter at thor and get him to stick it on the dyno pack and see whats going on!! The stupid thing with the glove bit thats missing is i have seen a pic with it on and theres nothing in it!! so they have either broke it or nicked it for another car!!?? Will check the tyre pressure tomorrow, tbh i set off to pick up the cat at 6am this morning and got back in it at 8.30pm after a 330mile journey home!! took it easy but did put it in full boost on my private stretch of the M6!! and it was like a jet plane wow as much as i like my 300's i never heard one sound like that!! Will do a search on ECU coded Many thanks for your replies Mike Link to comment Share on other sites More sharing options...
mkirby Posted December 2, 2004 Author Share Posted December 2, 2004 Also forgot to ask the speedo is still in KPH what the best thing to do get it converted? if so whos is best to use? Cheers guys and gals Mike Link to comment Share on other sites More sharing options...
Jake Posted December 3, 2004 Share Posted December 3, 2004 The Thor one is very good. http://thor-racing.co.uk/products_and_services/electronics/speedo_converters.htm Link to comment Share on other sites More sharing options...
Homer Posted December 3, 2004 Share Posted December 3, 2004 Just out of interest, is this your car? http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=18290&item=4506899940&rd=1#contact Link to comment Share on other sites More sharing options...
mkirby Posted December 3, 2004 Author Share Posted December 3, 2004 Yeh i bought it in the end!! very cheap poss too cheap but hey i think it was worth the risk as it does have some great mods and bolt ons. Yeh its a little rough round the edges and needs a few things but all in all its good i like it, drives very well, has a few niggles which i will sort but too good to miss!! Go on someone is going to tell me now that its going to blow up the next time i drive it...lol Just need a little tlc and a good mapping session at thor which it will get very soon apart from that its got more on it than the guy eith said or knew which i think the second one!! the guy i dont think knew much about the car or cars in general there a RX specialist so this was new to them. I think all in all once its been tidied up it will be a monster. The only thing that worries me at the moment is the drivebility of the thing, the clutch is extreme and below 2.5-3k its a bit rough which may be because of the cams or maybe just the fact it needs a good tune/map If anyone knows anything then please let me know Many thanks Mike Link to comment Share on other sites More sharing options...
geoffvalenti Posted December 3, 2004 Share Posted December 3, 2004 Quote from eBay ad " Recorded 510BHP on rolling road with rollers slipping so power estimated at 600BHP with 475ft/lbs of torque." Yeah, right So thats where they get all those 600 Bhp figures from Seriously, nice car, hope you get it sorted soon. Link to comment Share on other sites More sharing options...
Ian C Posted December 3, 2004 Share Posted December 3, 2004 Looking at the engine bay pics it looks like a sturdy setup, all the breather hoses are there, routed well with anodised tidy clips, looks like someone has spent the money on details like that and cable heat shielding etc, so that's promising. Not having anything in the top glovebox cover is a relief, no electronics removed -Ian Link to comment Share on other sites More sharing options...
mkirby Posted December 3, 2004 Author Share Posted December 3, 2004 Originally posted by Ian C Looking at the engine bay pics it looks like a sturdy setup, all the breather hoses are there, routed well with anodised tidy clips, looks like someone has spent the money on details like that and cable heat shielding etc, so that's promising. Not having anything in the top glovebox cover is a relief, no electronics removed -Ian TBH i am finding more and more mods the more i look, its got a billet fuel rail of some make not sure who by and it looks like the oil filter has been relocated to the very front of the car, saying that for all i know it may be meant to be there But yeh its had alot of money spent and it has all the best mods done but the ECU still concerns me so i will get that done first to be safe. Cheers Mike Link to comment Share on other sites More sharing options...
Ian C Posted December 3, 2004 Share Posted December 3, 2004 Yeah, deffo get it checked out, I'm just saying it appears to be a lot more 'complete' than some installs I've seen, so you don't need to worry too much -Ian Link to comment Share on other sites More sharing options...
michael Posted December 3, 2004 Share Posted December 3, 2004 Originally posted by geoffvalenti Quote from eBay ad " Recorded 510BHP on rolling road with rollers slipping so power estimated at 600BHP with 475ft/lbs of torque." Yeah, right A 2.2L MR2 with a T88 produced over 700bhp Geoff, on a Supra it's more than capable of 600+ with the right supporting mods Link to comment Share on other sites More sharing options...
mkirby Posted December 3, 2004 Author Share Posted December 3, 2004 I'm not suprised it is low it is only set at just over 1 bar of boost!! i know that turbo can run about 40 psi - if you were mad enough or didnt want your car to last lol but i plane to get it upped to 1.7 - 2 bar once it has been mapped my thor and then see what she is putting out. I would have thought with the right mods and mapping that turbo should be good for 700+?? according to greddy its good for 1000 bhp but that is the US site and we all know their BHP is a little different Found another problem it scrapes on my drive only just but i need to get the car higher on the coilovers asap or i wont have a front bumper left Mike Link to comment Share on other sites More sharing options...
Ian C Posted December 3, 2004 Share Posted December 3, 2004 1.4bar boost on Optimax would be about the highest you'd want to go, any more boost and you'll need higher octane fuel. Gonna be mental on 1.4bar anyway -Ian Link to comment Share on other sites More sharing options...
Alex Posted December 3, 2004 Share Posted December 3, 2004 Mike, Was there anything about the car that didn't add up? As far as the advert was concerned? Cheers Link to comment Share on other sites More sharing options...
mkirby Posted December 3, 2004 Author Share Posted December 3, 2004 Only one thing and thats the turbo he advertised it as a T88-34D but its actually a 33D!! even when i pointed it out he wouldnt believe me infact he phoned up someone to ask why?? but TBH it doesnt bother me 33 or 34D there bother huge and more than enough for any power i would want!!. Apart from that not really everything is as it was advertised from what i remember so unless i find anything that really worries me i would consider it to be a bargain infact i bet i could break it and get more than i paid for it!! I also want to crack open the block to see what work has been done in there as thats the only other area that i like to have bullet proof but saying that i have been told the supra engine is about as strong as you can get unmodified but i see a stroker kit on the horizon :flame Dev You should hear the thing it sounds like a le-man car as its got a 4" titanium exhaust from front to back!! the neighbours love me Mike Link to comment Share on other sites More sharing options...
Alex Posted December 3, 2004 Share Posted December 3, 2004 Damn - lucky man...it it had come up a couple of weeks earlier I would have fought you for her...but I'm happy enough with my eBay steal I think the 33D has a smaller A/R so it won't make the most outright power that the 34D will...but it will spool quicker. Link to comment Share on other sites More sharing options...
mkirby Posted December 3, 2004 Author Share Posted December 3, 2004 Yeh thats what i thought its actually not a bad discovery!! saying that talk about laaaaaaaag nothing until about 4000 rpm then all hell breaks loose it just burned rubber when it cam on boost in 3rd last night so i need to be careful Also Ian why can you not run them over 1.4 bar?? surely if its mapped correctly and its getting enough air and fuel then you shouldnt have a problem? I know loads of people running 2 bar on skylines/scoobies/EVO's etc so why not a supra? Cheers Mike Link to comment Share on other sites More sharing options...
Alex Posted December 3, 2004 Share Posted December 3, 2004 You can run over 1.4bar...but not on normal fuel with NORMAL compression. If your running lower compression than stock then you'll get away with more boost...otherwise Race fuel is the safe way of running over 1.4bar. 1.4bar daily driven wouldn't be slow though would it! lol 2bar with some CoolBlue race fuel would be very interesting! lol Link to comment Share on other sites More sharing options...
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