Gricey2002 Posted March 1, 2020 Share Posted March 1, 2020 So i bought my 1998 starlet s in august last year bit rough but after tidying up some dents and rough edges i started modding it first i painted the valve cover then i decided i wanted to put itbs on it so after doing a little research i bough some itbs from a triumph tt600 and a manifold from danst engineering other things i needed were a vacuum block and vacuum lines which i bought off ebay i also had to make a tps adapter which was a thin piece of metal with holes to bolt the tps down, also i needed to adapt the throttle cable to i drilled the hole in the pulley on the itbs bigger i put everything on the car and managed to get it started with the standard fpr and no management 183F39BD-9496-4EDE-9C4D-E20AE433BF7B.MP4 as i expected it ran horribly and struggled to idle but after installing an adjustable fpr and balancing the throttle bodies it ran a lot better and idle was smooth the car still didnt run perfect and after installing a wideband i could see the idle and cruise afr was way too rich so i installed an ecumaster det3 piggyback which made the fuelling perfect while i did the itb conversion i also put a backbox delete on it 47607820-8BB0-4ABF-9332-2CBC65434413.MP4 i also bought some yaris t sport wheels the sound of itbs 729A7BA7-96F3-4660-B5F2-3DC7878949ED.MP4 Quote Link to post Share on other sites
Sam44 Posted March 1, 2020 Share Posted March 1, 2020 (edited) Love it what size are the itb. The 4efte also has a higher lift inlet cam for better topend Hp it doesn't seem to be common knowledge. Edited March 1, 2020 by Sam44 Quote Link to post Share on other sites
Gricey2002 Posted March 4, 2020 Author Share Posted March 4, 2020 On 3/1/2020 at 1:25 PM, Sam44 said: Love it what size are the itb. The 4efte also has a higher lift inlet cam for better topend Hp it doesn't seem to be common knowledge. they are 45mm. i always thought the efte and efe heads were the exact same. Quote Link to post Share on other sites
Sam44 Posted March 7, 2020 Share Posted March 7, 2020 (edited) Yeh I'm surprised very surprised my self the efe inlet cam has been missed for the big turbo mods on the 4efte, and the 4efte cam on the n/a engine. You can clearly see the difference on the dyno graph torque curv. This curv on a n/a engine basically represents head flow rates and volumes as well as fueling against rpm issues. You can feel the engines lack of high rpm torque/speed. With torque drop off from 3krpm to 4.5k alarming with a bad economy related fueling issue or air delivery volumes and fuel delivery mismatch at low rpm in the standard map present also as this is you target power zone for road proformance. at 80mph in 5th gear there's zero engine torque for such a light weight car with good Hp figures. As I dig deeper into this problem I've found the fuel pressure regulator pressures increase on initial throttle is hurting the afr and the ems (engine management system) is struggling to recover the afr. What makes this stand out is the fact the corrola tubular manifold dyno graph with its much higher start gas flow speeds deals with this better delivering more air at this point mixing with the extra fuel. As you will know on such large itbs and the standard ems look up table being so basic the pressure increase will on both na and turbos hurt the low rpm power. The solution is slow down the pressure rise so the ems can at least deal with it. I'm using a vw inline vacuume chamber to delay the pressure increase acting on the fuel pressure regs control valve. With good results so far. Yeh you will struggle to get the most out of them itbs with the standard efe cam configuration it's designed for very low rpm flow rates. I ran side draft delorto 45 carbs on my 1.6ltr cvh fiesta and were to big for good low rpm torque great on track high rpm torque with bigger cams. I'm a fan of your work and aproutch to tunning this is purely advice. If you get me. Keep up the great work. Edited March 9, 2020 by Sam44 Quote Link to post Share on other sites
Thonfella259 Posted March 16, 2020 Share Posted March 16, 2020 gricey, looking to get a det3 or even an Emanage ultimate in the future. Could you tell me what pinout you used for the ignition?👍 Quote Link to post Share on other sites
Gricey2002 Posted March 21, 2020 Author Share Posted March 21, 2020 On 3/16/2020 at 3:44 PM, Thonfella259 said: gricey, looking to get a det3 or even an Emanage ultimate in the future. Could you tell me what pinout you used for the ignition?👍 igt pin (ignition timing) its pin6 on connector 1 Quote Link to post Share on other sites
Thonfella259 Posted June 6, 2020 Share Posted June 6, 2020 Well gricey, going to get a det3 like yourself, could you tell me how you downloaded the det3 software plz, havin trouble here cheers👍 Quote Link to post Share on other sites
Sam44 Posted June 7, 2020 Share Posted June 7, 2020 23 hours ago, Thonfella259 said: Well gricey, going to get a det3 like yourself, could you tell me how you downloaded the det3 software plz, havin trouble here cheers👍 I hope this can help, I'm just fitting one to a civic d16y8 turbo. Quote Link to post Share on other sites
Thonfella259 Posted June 7, 2020 Share Posted June 7, 2020 Cheers Sam, got it sorted there, wasn’t downloading bet then it just did🤷♂️ Time for itbs on the 5 door!!!🤙🤙 Quote Link to post Share on other sites
Thonfella259 Posted June 27, 2020 Share Posted June 27, 2020 Well gricey, me again👋 Ive wired in the det3 and I’m having trouble with all the setting, any chance you could help me👍 Quote Link to post Share on other sites
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