LeCid974 Posted March 4, 2014 Share Posted March 4, 2014 Hi there! I made some research all over the web... I know first I MUST upgrade my retainers. ok. But now...I'm looking for a cheap/safe way to raise revlimit cause I've a na 4EFE turbo (8.5CR, IHI VF14 turbo @ 0.8b, gemb, 11.0afr on boost) and my friend with 4EFTE (CT9 @ 0.7b, zisco exhaust manifold, TiAL external wastegate, 10.5afr on boost) is faster than me cause of it revs higher! I'm juste looking about ~7500rpm (I've paseo cluster fitted) I read about : -Change the crystal of my ecu -Buy a PrecisionTuning RL-1 for GEMB But, changing the crystal has already been tested by a friend and he destroyed two engines.. at while yet it is a competent guy who rule his paseo for years and knows how to use a greddy... So I don't really like it the RL-1 option could works, but for around 100, the guy emailed me back than it's just a blackbox on the wire wo read injector signal and repeat it I read somewhere (but I can not remember where) something about an electronic circuit consisting of diodes and simply controlled by the injector additionnal map of greddy blue ... I asked myself, as I have an additional injector installed on my 4EFE if it would work simply by adding the right amount of fuel at the right place ... Before trying, I expect some opinions, experiences, advice, coming from you LeCid Quote Link to post Share on other sites
richardc9052 Posted March 4, 2014 Share Posted March 4, 2014 What rpm did your friend raise his limit to? What engine was it on? Did he have a piggyback system? Did he make any modifications to the engine to be able to manage higher rpms? Quote Link to post Share on other sites
LeCid974 Posted March 5, 2014 Author Share Posted March 5, 2014 I think he does...It's the man who teach me all I know now... He said "it's not working"... I'll re-ask him for more precisions ;) But I'm sure he'z now doing 9800rpm easy on his 5EFHTE VF35 @ 17psi...thanks to Greddy EMU In my case, I wondering 7500rpm on 4EFE-T 8.5cr I've a Greddy emb Uprated oil pump Quote Link to post Share on other sites
yaristurbo Posted March 6, 2014 Share Posted March 6, 2014 Nearly 10000rpm? Info and video that must sound nuts Quote Link to post Share on other sites
LeCid974 Posted March 15, 2014 Author Share Posted March 15, 2014 Yeah I'll take a few video as soon as I can For now, I'm wondering to swap my ecu for a 4EFTE one What should I need ? are map sensor+ecu+knock sensor all I need to fit?do I swap ignitor+distributor or does mine work If I wire It right place on the 4EFTE ecu? Quote Link to post Share on other sites
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