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Hesitation around 3rd-4th gear

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Old 04-14-10 | 06:15 PM
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CA Hesitation around 3rd-4th gear

ive been hitting hesitation around 3rd-4th gear and for both around ~4k rpm. im currently running a 87TII with a bnr stage 2 turbb, 550/720 injectors, on a rtek 1.7. My friend, whom is pretty knowledgeable when it comes to rotaries said its probably because im "leaning" out, hitting "detonation." He suggested that i purchase a safc neo to regulate my fuel and said that should fix the problem. I was wondering if there is any truth behind that before I go out a spend $200-300. I was under the impression that with the rtek 1.7 I was in good hands with my setup. What do you gu8ys think?
Old 04-15-10 | 02:54 AM
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check your grounds it could be the 3.8-4k hesitation
Old 04-15-10 | 05:55 AM
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its not the usual 3.8k hesitation, i meant to type ~4.5k+
Old 04-15-10 | 09:22 AM
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The rtek has the fuel cut defenser built in. If you are going to spend 2-300 buy a wideband. What boost are you running?
Old 04-15-10 | 12:27 PM
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Here's my lame suggestion, bad gas from the last fillup? Try some Chevron injector cleaner. Worth a shot for 13 bucks or so.
Old 04-15-10 | 12:59 PM
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Oh you know who knows this kind of stuff? The guys in the FC tech section. I hear they're real good. Heck, I'll even link you!

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/
Old 04-15-10 | 01:15 PM
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Originally Posted by RicerJ
check your grounds it could be the 3.8-4k hesitation
talk to me more about his ground checking for the 3.8-4k hesitation.. not trying to thread jack tho. just that i think that maybe my problem.
Old 04-15-10 | 01:24 PM
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^Jaime did reground that car.
Old 04-15-10 | 03:27 PM
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Are your secondary fuel injectors low impedance? Are the resistors in place?
Old 04-15-10 | 07:15 PM
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8I have a 87tii, so yes, my secondaries are low imp. and in regards of my boost setting, i dont have any type of boost controller installed so in purely on my wastegate, and i rarely "floor" it because of this issue i have, but on those rare occasions that i do, i think im boosting at about 5.5-6lb

my friend suggested me to get a wideband + safc, he thinks its cause im leaning out when im hitting higher boost. what do you guys think?
Old 04-15-10 | 07:19 PM
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Originally Posted by TheAbsence
Oh you know who knows this kind of stuff? The guys in the FC tech section. I hear they're real good. Heck, I'll even link you!

https://www.rx7club.com/forumdisplay.php?f=17
love the sarcasm. if you click the link that youve so kindly posted here, you would notice that I made a post there too.
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