240z losing power? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rb25_s13*CHUKI · 05-29-2007, 03:39 AM

Hey me and my buddy just broke in our fresh L30.It has a mild race cam i forgot the lift and duration.It has side draft carbs.It keeps the stock 4 speed tranny it's running a 2.68 inch exhaust.Anyways we were crusing around and some honda came by and reved at us so we were like ehh what the hell.So we catch up at the light the honda was like ill get u froma dig.Light green we go we are going going then at 7000 RPM the engine just about shuts off.So we stop check evrything We make another pass same thing 7000 Rpm shut off.Anyone kno the problem?

johngriff · 05-29-2007, 03:42 AM

What is the gapping on the points and the dwell?

Sileighty_85 · 05-29-2007, 02:25 PM

What ignition system are you running? MSD or Stock? and also what Fuel pump are you running?

steve shadows · 05-29-2007, 02:30 PM

what do you mean just about shuts off?

Like it mis-fired? back fired into cylinder?

Sileighty_85 · 05-29-2007, 02:44 PM

you probably need to ajust your fuel level floats inside the carbs I guessing they are probably Mikuni Solex's? I had a set on my AE86 and had a similar problem your probably suckin all the fuel out of the carbs and the floats are adj. too low.

johngriff · 05-29-2007, 03:02 PM

Quote:

Originally Posted by Sileighty_85

you probably need to ajust your fuel level floats inside the carbs I guessing they are probably Mikuni Solex's? I had a set on my AE86 and had a similar problem your probably suckin all the fuel out of the carbs and the floats are adj. too low.

It wont happen at a specific RPM if its the floats. Like specific repeated you know.

I was wonder about the ign system too, thats why I asked about his points, srsly though, I think he is just a troll..

05-29-2007, 03:39 AM	#1
rb25_s13*CHUKI Post Whore! Join Date: Mar 2007 Location: Cali Age: 36 Posts: 2,759 Trader Rating: (16) Feedback Score: 16 reviews	240z losing power? Hey me and my buddy just broke in our fresh L30.It has a mild race cam i forgot the lift and duration.It has side draft carbs.It keeps the stock 4 speed tranny it's running a 2.68 inch exhaust.Anyways we were crusing around and some honda came by and reved at us so we were like ehh what the hell.So we catch up at the light the honda was like ill get u froma dig.Light green we go we are going going then at 7000 RPM the engine just about shuts off.So we stop check evrything We make another pass same thing 7000 Rpm shut off.Anyone kno the problem?

05-29-2007, 03:42 AM	#2
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	What is the gapping on the points and the dwell? __________________ [email protected]

05-29-2007, 02:25 PM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	What ignition system are you running? MSD or Stock? and also what Fuel pump are you running? __________________ 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

05-29-2007, 02:30 PM	#4
steve shadows Post Whore! Join Date: Aug 2003 Location: LA and OC Posts: 8,202 Trader Rating: (5) Feedback Score: 5 reviews	what do you mean just about shuts off? Like it mis-fired? back fired into cylinder? __________________ Like Me on FaceBook !

05-29-2007, 02:44 PM	#5
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	you probably need to ajust your fuel level floats inside the carbs I guessing they are probably Mikuni Solex's? I had a set on my AE86 and had a similar problem your probably suckin all the fuel out of the carbs and the floats are adj. too low. __________________ 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