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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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06-01-2011, 05:30 PM | #1 |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
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Helppppppppppppphelppppppppppppp
alright so i just finished throwing in this ca18det swap in my s14 . i upgraded the stock turbo to a gt28 turbo , i am noticing when i drive the car , 1-3 gears are fine when i get to 4th gear and hit about 3100 rpm with the throttle fully open nothing happen after that point until i go under the 3100 rpm mark. its usually right before the boost kicks in in those high gears.
and when i get to 5th gear i can not exceede about 2500 rpm . i am not sure if this would link to a maf problem. or a boost problem . but i can pretty much red line the car in the first 3 gears and boost no problem. some input would be nice ! thanks ZILVIA PEEPS. |
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06-01-2011, 05:37 PM | #2 |
Post Whore!
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Not too familiar with the CA18, are there 4th gear and 5th gear sensors in the transmission? If so, are those plugged in? Does it feel like a fuel cut when you exceed the rpms?
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06-01-2011, 05:41 PM | #3 | |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
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Quote:
it feels like everything cuts out, and not slowly its as if the car shut off or something, it only does this once i get to that rpm. the car use to be automatic ka but i converted the harness and rewired it onto the tranny |
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06-01-2011, 05:49 PM | #4 |
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what MPH are you at at 3,100 in 4th?
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後輪駆動車1番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit |
06-02-2011, 08:51 AM | #7 |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
Posts: 450
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i dont think its the maf cause its the same maf the kid before me had in his s13 and i new him and drove with him and never had this problem ,and as for a leak , its doesnt feel liek aleak problem , once i hit 3100 rpm the pedal becomes completely useless no matter how far i push it it feels like a dead pedal
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06-02-2011, 10:37 AM | #14 |
Zilvia Member
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yeah check ecu out... ive seen some picky motors with similar issues and it was just a simple ecu swap... there picky lil things lol, i cud imagin in a s14 also
what ecu and maf are u running? |
06-02-2011, 05:33 PM | #15 | |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
Posts: 450
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Quote:
the numbers on the ecu MEC-D016B and number 78 it says its for a MT . so i shouldnt see why theres a problem |
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06-02-2011, 07:46 PM | #17 |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
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you mean to a z32 one. this wouldnt have this much affect on it tho! i test drove the car today and i got it to rev in 4th and 5th but i was redling it in 3rd and switched to 4 and redlined it again and then to 5th then i turned the car around and the car died.
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06-03-2011, 07:17 PM | #19 |
Zilvia Junkie
Join Date: Mar 2009
Location: Orlando , FL
Age: 34
Posts: 450
Trader Rating: (2)
Feedback Score: 2 reviews
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ya the kid before burnt his wire harness and the ecu so i got it rewired and got a ecu off someone . the ecu is a bit different as the old one was from a silvia and the one i got was from a 180sx ca18det but the motor is the same so i dont see why it would affect it. i figured this problem occurss when i reach a certain speed.
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240sx, ca18det, ka24de, s13, s14 |
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