first dirt track 240sx

[dirtdauber240sx]

Hi, my name is dustin hartzog from north carolina .and im working on a 91 240 sx for the dirt track.the ppl im running against are running mostly use out dated 2200cc pintos and 1800-2200cc toyotas. my first qes. is about my ecu .my plan was to use my esm and just engine harness with fan and fuel pump wired to swithes and starer on a button but my proboblem comes here were dose my esm get its power the engine harness i have dosnt go to the bat. and thats all that pluds into the ecu. and can i run a dohc engine harness on a sohc engine.i have the rest of the harness if i need it so if you guys can help me.with this and any power tips for a sohc my rules are i have to use nissan factory parts with in reason. guys i know im new and i sound like i dont know spit but help me bet nissain haters at there own game.any advise in welcome and appicated

[neverlift]

I will tell you like they told me man, SLOW DOWN! I get that you want to race the dirt track and want to get rid of all crap you dont want/need. We have a few FSM's here (factory service manual) that could help you on your way.

[dirtdauber240sx]

ok thankz man i looked thought the fsms for a 240sx. didnt find much but somthing i read there did give me an idea. im going to try this and ill let you know.

[Red coupe]

NEVER LIFT:Could you add the / to the last [img] tag in your sig? its messing up the format of the page....

Your trying to use a DOHC wiring harness on a single cam?

Did you swap a single cam into your car? the SOHC was 89 and 90, 91 and up cam with the KA24DE from the factory, and very few people would swap the later for the former....

I think you got the FSM? its in my sig....Its gotta have wiring diagrams right? I haven't done any electrical work with my car so I cant really offer any advice other then read over the wiring diagrams and maybe search for info in posts about SOHC to DOHC swaps...

This isn't the first dirt track 240 though, while I unfortunately cant point you towards specific examples I've seen them used for almost any motorsport you can imagine(I don't think Ive seen an ice racing 240?)

Also I wouldn't underestimate the "outdated" Toyota's and what not...there is very little out there on dirt track 240's...I wouldn't be surprised if there was already a decent knowledge base out there for those other cars.

[REDLN]

hey d look in the post above me and see what's at the bottom of is post. there you go kid. This is the only 240 on the dirt down here. so the knowledge is very limited on these. well in there world (dirt track drivers round here). who know what all he can cut out if he can with out throwing codes and it not running anymore?

[Red coupe]

I dont say this to be mean but I can barely understand what you, or the original poster are trying to say...

Not much can be removed with out it throwing codes. Alot of the codes are there to point out faults in the emissions system, but almost none of that stuff is needed for the engine to run...

Search some variations of "emission removal" I know ive seen guides on howto remove most of the stuff.

[neverlift]

if this is stricktly a track car and idle is not important, I would say scrap all but the fpr and vac line for it. do 89 90 models even have a cel? All the stuf done to mine hasnt thrown any yet. I be like whoomp burrrrrrrr rom romroooom. SHOOT!! SHOOT!

[dirtdauber240sx]

ive got a wiring diagram from a friend who found it on the internet somwere .so im going to try to use the engine harness and the loop that goes around the engine bay.with the 2 relay boxes in it and see what can be done with this.as for the other cars like the toyota your right my uncles been racing toyotas on dirt for about 10 years and has two track championships running ae86'sbut there is somthing to be said for being differant if you ask me. but ill keep you informed

[bamracing]

How did this project work out? Here it's all Mustangs and Celicas; I want to stand out and have fun.

Sounds like I'm in a similar situation. I'm building an '89 coupe with a SOHC to race on a quarter mile dirt track. I want to get rid of as much wiring as possible without hurting performance. I was thinking that I would start at the ECU and get rid of all the wires that never go into it. Does that sound like it would work?

Michael