datsunan

Currently I'm running the stock o2 in its stock location but I would like to change out the dp to a 3" with 2 45degs. I will keep the o2 placement in mind thanks. I think I will try the heated o2 sensor if it turns out its not caused by altinator noise. PM to Bernardd follows. My plugs look great when I change them out, good color and all the same. I have been trying to see if it was the wrong heat range of plug but now I'm running NGK 8es7 or something I don't recall right now but they are what many people have said are the right plugs for this engine, inclueding JWT. That would be cool if you could set me up with the link and I can start to study the process to see if I would feel comfortable doing it. I guess I could just keep the chip I have now and put it back in if I really mess it up or can't do it for some reason. I'm going to check a couple more things to try and smooth the idle. One problem I'm having is a week charge from my altinator which does not keep my voltage much above 12v. I have seen my voltage fluctuate at almost the same frequency as my idle miss. The o2 voltage also fluctuates with the same frequency but I don't know which is happening first. At any rate I want to be able to get more power out of my engine but I would also like to start off with a solid running engine. You say the o2 voltage should fluctuate after the engine is warmed up? Is that at idle or when driving. I know it changes with a change in rpm but are you saying it will swing at a constant rpm like 3000? I have seen it swing at idle but i thought that was part of my idle problem cause when it swings thats when it misses but i can't tell what comes first. Shoot me those links when you get a chance Thanks Paul

I have replaced everthing on the engine with new parts, tried 3 diff plugs, new 8mm wires,msd ign,2nd new fuel pump, I am running to much fuel press at idle (55psi) because my new aeromotive fuel pump is so big I need to upgrade my return line to get the pressures to come down. It ran the same before I change it out. I have not found any vacuum leaks and since it runs great when cold I don't think its a leak. Nothing I have done has had any affect. can I run a wb o2 on the z31 ecu? Its still a 0-5volt sig right? I would like to try and use a heated o2 and see if maybe the problem is that its to cold, do you know if I can? Ben at JWT seemed adament about using the stock o2 sensor for that ecu. You say I will need the burner and a couple of chips, do I need to replace the chip every time I make changes or can it be reburned? I have never done something like that so I'm kinda in the dark on how the programing happens. Thanks Paul

Yeh I was reading on the ms website about the wb o2 but it sounded like it was still in the works.? I could not tell if it was availible yet or not, I guess it is if you buy the support board for it. I might want to wait and see if the come out with a new version that has it built in.

Have the driveshaft u-joint fork cut off and have them weld on the size that matches the yoke. It will be easier to find the right joint now and in the future if you need it replaced. Now would be a good time to see if you need to change the lenght of your ds also.

Yeh that was me with the timing flutuation, it was my tps not being in the right possition when I would set the timing. my timing is good now but I have a bad idle that is driving me crazy. It misses and will drop out 100rpm every 5 sec or so. It idles perfectly smooth at start-up for about 3-5min then maybe goes into an open loop and starts missing. I just read something on the ms website that makes me think my exhaust gas temp is to low for proper o2 operation. I have no cat or mufflers on the car so my temps may be low at idle. My electric fan has also burned out the temp switch so it stays on and is probably keeping my water temp lower than it should be. Do you think I'm onto something? I've heard that the JWT system often has problems such as rough idles so that was one reason for wanting to change it and I did not know I could adjust my a/f mix. If you check my profile under my last post it lists most all of my mods. I had it dynoed at 250rwhp if JWT is telling the truth about the potential for thier system then I am at least 30hp short. I want to try and make 350rwhp and I've seen guys here making as much as me with the stock turbo. I was at 16 psi to get 250rwhp and it was running lean. I don't want to pay JWT more money every time I make some mods, I'm a do it yourself kinda guy, I did everything to my car myself but the crome and interior, right now my car is in the SD international car show so its not a POS. I have not been impressed with JWT's service. I live 15 min from them but they are unwilling to help me troubleshot my problem. After spending almost $3000 with them I think I should get some free support. No? Thanks again for any help Bernardd.

Hey Bernardd thanks for the reply. Have you worked with MS befor? What do you think would be easier to mess around with on a regular basis. I have not done any burning/reprograming befor and do not want to have to reliey on others for help, although I appriciate your offer and may take you up on that, I'm in SD CA where are you? I like to tinker and will probably be modifiing the engine more over time so reprograming may happen often, ie after porting,new down pipe, possibly squeezing. I am only making 250rwhp and with my current mods think I should be making more, dissapointed with JWT ecu output.

I'm looking into a new fuel management system and am torn between MS and SDS. Sds does not need a pc to program supports a wb o2 and has sequential injection, it costs alot more but is it worth it? I'm looking to squeeze the most reliable power I can from my 83 turbo. I am currently using a reprogramed z31 ecu from Jim Wolf Tech but can not adjust anything for more hp. I think the wb o2 sensor is very important to maximizing hp safely but is it worth 1k$ ? Any input on any of this?

Are you doing the windshield or back window? If you think the ws is hard try doing the back window. Its a two person job as far as Im concerned. Find a thin hook shaped tool so the tip goes under the edge of the trim and the other edge pushes the rubber away, your friend then needs to push the trim in as you slid the hook tool along the trim. Tip: use lots of spray lube like WD-40. good luck, its hard and takes time but you'll get it. Wish I knew an easier way,.... anyone?

If your pump is located to high (above the fuel level) it may not be able to get primed with fuel. It can't pull fuel up with air in the pump body you may need to prime it manually but it would be best if you lower the pump.

I did a search for JSK and found no matches..?? I saw a post on another site that said he is not making them anymore. I need a new rail. What about Pallnet or something like that, is it just as good? Any site links? I can't find him. Any help or advise, Thanks Paul

Looks exactly like the one I bought for my 73. I paid 600 for mine but it came with piping and connectors for install into a z32. I had to cut the 3" inlet/outlet off and put a 90 on the tank in order to make it work, but once in it is really nice. I could not figure any way to intall it without the custom 90's welded on because it is so wide you don't have any room to add fittings and still make it threw the wall. Mine was made by "Hybrid" if you want to look for it. I could shoot you some pics if you PM me with your address.

So Tim How does it feel to be famous?,,,Ohh never mind I know how it feels, I was it the show too!! My car was in the background when they were talking about the Z for sale. Then again right befor they went to you. Although I 'm not as cool as you cause I did'nt have a speeking role! You must be stoked! I thought they did a great job with your interview. Congrat Tim!

Terry thats too funny man! I remember Tim almost did'nt go because of that, or was that the convention? Anyways is the show called Sea of Z's? I talked to that guy but he was'nt rolling film at the time just like when the MSA camera came by, they both came by me at the end of the day and they were tired of filming. Damn it! I want I head like Tims!!!!

Yeh I knew it was for newer LS1's, I'm starting to look into some way to get a stronger drivetrane set up and a 6 spd would be sweet.

Hey Tim do you know if you can swap bw bell housings in order to get that 6spd onto a L28?

If your going to do it yourself I think z-tard is onto something, Like a sandblaster, I think the angle that the pipe come off the down pipe is important. I hate to admit to it but you could buy the part from Jegs and see if you can design it the same way, then return it unused to jegs

Anyone know? I know someone must have done a Bw and lsd combo in a 73.

Keep em small as you can, high heat, low build-up.

Hey Cody, thats a good idea. I could machine the tail housing and then use the seal and bushings for a Z31. I just picked up my machined yoke and dropped everything off at the DS shop but if it snaps the yoke I will be trying it your way. thanks Paul.

Yeh thats what I'm doing now but it will cost me $130 because it needs to be center ground perfectly and then the wall will be thin making it weaker. I guess I don't have a choice. thanks for the reply thou.

I'm in the process of installing my BW T-5 in my 73 240zt. Im spending alot of money on my custom driveshaft so I don't break another one racing. My question is will I have angle problems with the BW trans and LSD diff? I've read alot of post but all seem to deal with V8 swaps. Do I need to be concerned with angles using all nissan parts?

Yeh I looked at the five speed I have now and the case is totaly different, where the shifter goes in is like a box compared to the round style of the NA 5 spd so that won't work. Does anyone know how hard it would be to take the output shaft out of the BW t5 and have it cut down a 24 spline? Can I swap out the spline with another?

Hey thanks for the reply, I was afraid of that. It does'nt make sense that the stronger BW trans has a weaker yoke. I wonder if I could cut the output shaft down to a 24 tooth or swap it out with one? Oh well, we'll see what happens.