Slower 5speed swap? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

LuckyRPS13 · 05-19-2014, 03:21 AM

I just dropped an overhauled KA24DE, with jun lite flywheel, ACT street strip clutch, and 5speed tranny into my S13 Vert.

When this motor set was in my S13.5 project car it felt much faster than it does in my S13 Vert. For that matter the vert's original KA24DE motor felt faster with the slush box auto tranny it.

The engine is running great, and revs just the same as before. There is the possibility that the combination of the heavier nature of the vert and me becoming accustom to my SR20DET powered S13.5 that has gone on a weight loss diet is warping my perceptions.

Has any one else experienced this after a 5 speed swap on a vert, or a hardtop for that matter?

dudebuddy · 05-22-2014, 02:19 PM

different rear ends?

butt dyno FTW

Chaluska · 05-22-2014, 03:33 PM

your just experiencing a difference in engine power I guess.

I went from auto > 5 spd KA in my vert and there was no difference in feeling slower.

when I went from stock KA > VH the vert felt a LOT faster.

going from VH to KA-T the vert is even faster..

LuckyRPS13 · 05-23-2014, 11:10 PM

Yeah I am pretty sure it is going back to the slower engine.

TwistnItSideways · 05-26-2014, 02:28 PM

Do you have the original vert doors? Could be a difference in weight. Those vert doors are heavy as shit.

If not probably your diff.

ATLspeed · 05-27-2014, 04:00 PM

It's just the weight of the vert. I went from auto>5sp = felt the same. Swapped my 2j from my coupe to vert = feels slower, because it is due to weight.

Welcome to the fat club lol. I refuse to cut things out or swap doors due to weight, and personal preference. I prefer the method of making more power.

LuckyRPS13 · 05-27-2014, 05:37 PM

Turns out I am having an issue that decided to pop up after the swap. It will run great above 3000RMPS but stutters and hiccups under 3k. I have changed out the fuel pump and the filters. When the Maf is unplugged it will idle but jumps around as if there is a vacuum leak. I replaced the intake manifold with no change and check all vacuum sources. only one I am really concerned about is the IAC. I think the problem is in line with it. I will keep you posted.

05-19-2014, 03:21 AM	#1
LuckyRPS13 Zilvia FREAK! Join Date: Mar 2009 Location: Louisville Ky Age: 42 Posts: 1,152 Trader Rating: (23) Feedback Score: 23 reviews	Slower 5speed swap? I just dropped an overhauled KA24DE, with jun lite flywheel, ACT street strip clutch, and 5speed tranny into my S13 Vert. When this motor set was in my S13.5 project car it felt much faster than it does in my S13 Vert. For that matter the vert's original KA24DE motor felt faster with the slush box auto tranny it. The engine is running great, and revs just the same as before. There is the possibility that the combination of the heavier nature of the vert and me becoming accustom to my SR20DET powered S13.5 that has gone on a weight loss diet is warping my perceptions. Has any one else experienced this after a 5 speed swap on a vert, or a hardtop for that matter? __________________ Do you need; Right side (USDM Passenger side) Replica S13 OEM Silvia Aero Bumper Grill S13 Silvia J's, Q's, K's, A's Bumper grill inserts. Male Plugs for S15 headlights PM me if you need them.

05-22-2014, 03:33 PM	#3
Chaluska Zilvia Addict Join Date: May 2008 Location: Missouri City, TX Age: 41 Posts: 997 Trader Rating: (2) Feedback Score: 2 reviews	your just experiencing a difference in engine power I guess. I went from auto > 5 spd KA in my vert and there was no difference in feeling slower. when I went from stock KA > VH the vert felt a LOT faster. going from VH to KA-T the vert is even faster.. __________________

05-23-2014, 11:10 PM	#4
LuckyRPS13 Zilvia FREAK! Join Date: Mar 2009 Location: Louisville Ky Age: 42 Posts: 1,152 Trader Rating: (23) Feedback Score: 23 reviews	Yeah I am pretty sure it is going back to the slower engine. __________________ Do you need; Right side (USDM Passenger side) Replica S13 OEM Silvia Aero Bumper Grill S13 Silvia J's, Q's, K's, A's Bumper grill inserts. Male Plugs for S15 headlights PM me if you need them.

05-27-2014, 04:00 PM	#6
ATLspeed Zilvia Addict Join Date: Jan 2007 Location: Eden, MD, USA Age: 38 Posts: 921 Trader Rating: (14) Rides Gallery: ATLspeed Feedback Score: 14 reviews	It's just the weight of the vert. I went from auto>5sp = felt the same. Swapped my 2j from my coupe to vert = feels slower, because it is due to weight. Welcome to the fat club lol. I refuse to cut things out or swap doors due to weight, and personal preference. I prefer the method of making more power. __________________ 93 s13 Vert - 2jz/cd009 -- parted/sold 95 Supra Turbo

05-27-2014, 05:37 PM	#7
LuckyRPS13 Zilvia FREAK! Join Date: Mar 2009 Location: Louisville Ky Age: 42 Posts: 1,152 Trader Rating: (23) Feedback Score: 23 reviews	Turns out I am having an issue that decided to pop up after the swap. It will run great above 3000RMPS but stutters and hiccups under 3k. I have changed out the fuel pump and the filters. When the Maf is unplugged it will idle but jumps around as if there is a vacuum leak. I replaced the intake manifold with no change and check all vacuum sources. only one I am really concerned about is the IAC. I think the problem is in line with it. I will keep you posted. __________________ Do you need; Right side (USDM Passenger side) Replica S13 OEM Silvia Aero Bumper Grill S13 Silvia J's, Q's, K's, A's Bumper grill inserts. Male Plugs for S15 headlights PM me if you need them.

05-22-2014, 02:19 PM	#2
dudebuddy Join Date: May 2014 Location: Atlanta, Georgia Age: 38 Posts: 37 Trader Rating: (2) Feedback Score: 2 reviews	different rear ends? butt dyno FTW

05-26-2014, 02:28 PM	#5
TwistnItSideways Leaky Injector Join Date: Jul 2011 Location: In a van down by the river Posts: 129 Trader Rating: (1) Feedback Score: 1 reviews	Do you have the original vert doors? Could be a difference in weight. Those vert doors are heavy as shit. If not probably your diff.