i keep hearing a gurgling sound under my hood near the left rear side of my engine... if i was looking at it... I also smell exhaust near the back of the engine bay when i stick my head there to listen... could I have an exhaust leak somewhere?

 

Is it intermitant? Or a constant bumbling at idle? I have very very minor burble at idle....but i only hear it maybe once ever 30 secs or so...and even then...it is almost inaudible. are you running stock cats and exhuast? that could be causing a build-up of back-pressure as well.

Either way, you probably have an exhuast leak...either at the manifold or the wastgate flange..those are the two most difficult areas to access. Honestly, if it is minor, and you are still getting 5psi or boost, I wouldnt even bother messing with it. Just increase boost slightly with a boost controller....i cant remember if you have a Profec yet or not.

 

well, its constant....and its been going on a while..
I have the helix pipes..... but im still getting .45bar boost, I'm just worried about it... you know

I dont have the profec... im going for the looks route for now... Im gonna wait until they make some more internal parts for the car, but besides that i'm gonna add some more safety features for the turbo and leave it alone for a while. I'd just like to fix a leak if there was one.

Im plan on doing what BBBT is doing and geting a hasemi replica body kit custom made... Thats a while away though... but its my next major goal.

Heres my list for what to do next..

BOV.....Greddy Type-S, should be put in on thursday...waiting for flange...

J&S safeguard, AND TS ECU upgrade..
Turbo Timer.... possibly a A/F and fuel press gauge

Then... 19x9.5 F and 19x10.5 R Volk SF challenge wheels
Finally the Hasemi Body kit....

Sorry for getting off topic....just havent talked to you in a while... hows your car doing lately.... any changes or future plans GQ?

 

TS Reflash is not compatible with eMange. Are you just asking them to retard the timing? If so..thats fine. But you should try the $30 eMange ignition harness. It will accomplish you the TS will do about 1/20th the price.

yeah...latest mods are Bride Ergo2 seats and Tein Flex coil-overs with EDFC. Car is running great. Fuel pump is enroute, and I'll soon be tuning for 8.5psi.

 

gq_626,
Why do you say the the TS reflash is not compatible with the e-manage? I have the TS relash and am using the e-manage without any noticeable problems. Reflash removed speed limiter, increased rev limiter to 7100 rpm, pulled timing, and I also believe adjusted for fuel up to the 380cc injectors (although I'm using the RC440's). Godspeed fine tuned the car after the ecu was reinstalled and adjusted the fuel for the 440cc injectors and a few other things. The Z is running great so far. I've beat everyone I've raced so far - TA-WS6 (destroyed it); fully moded TT Rx-7 (by a little over a car length) and a moded SRT-4 (destroyed it). Are there problems I may not know about?

 

Yancy, sorry if I didnt make myself clearer; let me clarify. I meant that the TS Reflash is fine for ignition retard, and sure...removing the rev limit is fine too. But in terms of fueling, there isnt really any need to have TS Flash your fuel, and then have the eManage modify that as well. By "incompatible", I really meant "unneeded".

I also thought Tadashi wasnt able to control the 440cc injectors very well...so that's why people went 380cc injectors, TS reflash, and the ditched the eManage all together.

I suppose there is some value in keepiing the eManage even with the TS reflash, since the eManage can be used to fine tune the fueling/timing, and the eManage could also be used to set a higher boost fuel map, clamp the MAF voltage or whatever.

There are several ways to skin the cat. Personally, I prefer to use one electronic solution to control everything if possible. (eManage)

The more I learn and study the eManage capabilty, the more I love it. It is by far...the most cost effective, powerful piggyback system I have ever seen.

Nice kills by the way!

 

this is were im confused.... just asking to make sure..

Can you use the TS reflash to change the rev-limiter, and top-speed, and then just use the e-manage to control timing and boost and fuel maps...

Basically i wanted the ECU for the rev limiter.... if they are both compatible thats something i'd be interested in to get some extra power.

 

Thay are compatible but you MUST tune the e-manage fuel add map after installing the TS Flash. The stock greddy map is tuned to the stock nissan fuel map.

Good Kills Yancy. I beat a 03 Cobra (Thats the supercharged V8) Two out of three times. First time I forgot to turn off the TCS. I always forget! I thought he was toying with me, I know those cars are fast as hell. But he was dead serious. That was at 5.5 psi on the stock greddy fuel map w/ some street legal slicks.

GQ That's what I was talking about! My idle problem! Sounds like you do have it. I think it's one of two things, Excess fuel because of the 440's; or an excess of timing advace due to the emanage modifying the MAF signal. Every time it happens I see my RPM's dip down and the motor shake. Pulling 5 degrees of advance at idle seems to help it out a little bit, but sometimes it still happens. I don't know what the hell it is...

 

Do you have to re-tune the e-manage because the ECU now thinks you have smaller injectors and it changes the fuel map?

Is that something I can do with a loptop or the profec e-01? Or should I find someone at a shop who knows what they are doing?

I guess it would also make sense to get the profec the ecu installed together and get it tuned before I drive it at all right? I'm probably ordering the profec and the ECU next friday, anyone know if any of the turbotimers work with the Z... Like the universal HKS harness?

 

Yancy, can you tell me what was necessary for Godspeed to do that kind of tuning? What sort of dyno was used, if one was used ? If I can reflash the ECU for timing and keep the eManage for fuel, I may consider that...

 

I still have a minor exhaust leak. my installer has done everything to fix it but its still there. Regardless, i am still getting 5psi sometimes 5.1psi so im not bothered. I want to turn up the boost to 6psi as GQ mentioned without any additional tuning but i must connect the vacuum lines to the wastegated. I havent done this yet and dont know how difficult this might be.

 

Just fyi, I had my clutch replaced once and the installer noticed when removing the wastegates, the bolts were loose, you could pull them out by hand.

I had the tranny replaced by Nissan, and the installer called me and guess what.... Bolts were loose on the wastegates.

Both times they were tightened down, so if you have an exhaust leak, it is likely there. Try locktite.

 

ETX, sorry...I thought you meant your idle was all eratic and stalling and stuff. Mine is very stable, with an very occasional tiny dip, and then I hear that burble. Again, on my car, its not audible from inside the car, and barely audible outside. Certainly not enough to make me even address it. In fact, my car had a tiny dip in idle periodically even without the TT!

Bru....yes, just have TS up the rev limiter and kill the speed limiter. There is no point in having them do the fuel...since you can adjust it with the emanage. Tell them to leave the fuel and timing stock. You can adjust both the fuel and timing with the eManage.

Hey, is it really worth $595 to have them remove your speed limiter and rev limiter? Unless I was road racing....I guess...might be worth it.