Jump to content
SAU Community

Recommended Posts

9 hours ago, defibf said:

I have used old fashioned cmos ic’s for this sort of thing CD4022B should get the job done, and no surface mount soldering required ??

I've had it suggested to me that a 74GC393 would do the trick, i'm just trying to get my head around if i need to do more than just give it 5v power, ground, the signal and then take the signal from the 3rd output and send that straight to the ECU, or if I need some other kind of input to it aswell?

 

edit: so it seems i need to give it a a 'reset input' (pin 2), would i be correc that that's just another 5v input?

7 hours ago, sneakey pete said:

I've had it suggested to me that a 74GC393 would do the trick, i'm just trying to get my head around if i need to do more than just give it 5v power, ground, the signal and then take the signal from the 3rd output and send that straight to the ECU, or if I need some other kind of input to it aswell?

 

edit: so it seems i need to give it a a 'reset input' (pin 2), would i be correc that that's just another 5v input?

Pretty sure that these will be ok with 15v supply 

data sheet 

http://www.ti.com/lit/gpn/cd4017b

just off to work, i will have a check this evening ?

 

  

 

13 hours ago, defibf said:

Pretty sure that these will be ok with 15v supply 

data sheet 

http://www.ti.com/lit/gpn/cd4017b

just off to work, i will have a check this evening ?

 

  

 

I looked through my box file of useful ccts, the ic i have used in the past as a divide by 8 device is below, this is the exact cct i used so I know that it works fine, excuse the fag packet drawing

i/p = r2

r1 = 12r

r2 = 100r

c1& c2 = 0.1 uF

D1 = zener bzx85c12

4040divideby8.jpeg

Edited by defibf
edited as i forgot i/p
  • Thanks 1

Time to unlock the 'high boost'  :)

Comparison to the RX7 below (both in 3rd gear) Evo had some traction issues though ! Got the response good now after lots of fundamental checking of the ideal cam advance on the MIVEK.

 

100-150 3rd.jpg

Another interim update of the performance relative to the 'big block' Datsun  :)

Sorting through a few items however got the same power and speed on lower boost today with some more tweaking, adjusting each cylinder to optimum... anyway here is previous days with slight miss fire *excuses!* will optimize some more. Just need to find some spare time to run at the test track and pump it up to 3600mB ;)

 

IMG_8032.thumb.jpg.b751e91c97b6b888bc1e5964898057b0.jpg

100-185 R34.jpg

100-185 EVO9.jpg

1 hour ago, burn4005 said:

Swap to some Denso IK01-24 or NGK R7434-8 plugs and you won't look back.

oh wait, are you still talking evo or RB?

EVO, old mate ran them at stock gap from what I can tell in picture though.

Current running for the nerds out there?

Bleed about 10% out wg, PR ~ 4.2:1 ~74lb/hour flow ~108k rpm 900 egt, TEP, TIP will keep to our selves see who can work it out lol...... Engine makes around 750bhp based off the performance listed, or around 14 million rwkw on lebtechomodynamics depending on tires + tie down methods + kebabs consumed

  • Haha 2

Just for anyone else interested in the new black series. Turbosource.com have them advertised and priced on their page in the US. They have said to me that the turbos are currently getting assembled and should be ready to ship end of February. The guys seemed relatively good to deal with and have some interesting stuff in the works for the RB and efr. Ill reserve the rest of my judgement until the turbo turns up. Maybe worth a look. anyway.

8474, 9274, 9280 have not started shipping yet.  I expect this will happen this week.

if anyone has a turbo already its a pre production unit, they have not started shipping as of right now

  • Like 1
5 hours ago, Full-Race Geoff said:

8474, 9274, 9280 have not started shipping yet.  I expect this will happen this week.

if anyone has a turbo already its a pre production unit, they have not started shipping as of right now

Ahh ok, didn't realise it was pre-production.   Still, sounds like it's close :)

11+ minutes on load on the EVO (66 x 10 second homo 'passes' LOL) on 19 hours and 50 minutes to go. We increased the performance even more, logs in next few days time permitting, maybe  even a video ;)

Overall the EFR9174IWG and complete kit from Full Race (thanks Geoff) is a great balance of response and power. Can run 'Full Race Boost' with no tappering to 9000rpm (up to ~40psi gauge pressure).

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Was there ever a model of the Stagea m35 that didnt have a badge on the grill? I thought I saw that somewhere, some aero edition or something? I cant find it again? davemoto
    • Its a 2002 vr-x four VQ25DET, silver. Coil overs, lowered, polished alloys and sport exhaust. Bit of a project, was sitting in a shed for a while but runs and drives great.
    • I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Well they got my money but they are not getting my gearbox ! 
×
×
  • Create New...