Search found 67 matches

by Jaso74
Sat Apr 12, 2025 7:20 pm
Forum: Holden ALDL ECUs
Topic: VR 424 11p auto speedo correction ?
Replies: 6
Views: 2535

Re: VR 424 11p auto speedo correction ?

So bit of a follow up question , If I splice the Dakota digital interface into the gear box tranducer before it goes into ecu/speedo, in theory I don't have to do any correction for diff ratio change in tp5 as the ecu and speedo will see the modified pulse ? That's right isn't it or am I wrong ? I h...
by Jaso74
Sun Apr 06, 2025 8:51 pm
Forum: Holden ALDL ECUs
Topic: VR 424 11p auto speedo correction ?
Replies: 6
Views: 2535

Re: VR 424 11p auto speedo correction ?

Thanks guys , I have ordered a Dakota digital speedo/tacho interface to put inline with speedo to correct it . Seems to be the current best option . For anyone else looking for a work around , this is the device - https://www.ebay.com.au/itm/324864700905 or https://www.dakotadigital.com/index.cfm/pa...
by Jaso74
Sun Apr 06, 2025 2:36 pm
Forum: Realtime Delco Tuning
Topic: Idle Spark not correct ?
Replies: 3
Views: 2783

Re: Idle Spark not correct ?

Found it . Compared to std bin and found something set for no known reason . I don't remember setting it either which is weird but anyway , now has timing as per idle timing map at idle not 10 degrees ! :wtf: :wtf: :wtf: Anyway attachment shows the guilty sets. Had EST - bypass spark at closed throt...
by Jaso74
Sat Apr 05, 2025 8:25 pm
Forum: Holden ALDL ECUs
Topic: VR 424 11p auto speedo correction ?
Replies: 6
Views: 2535

VR 424 11p auto speedo correction ?

Hi all . I've been searching but not sure on what way to go to correct the speedo on my VR 355 that I have just changed diff ratio from 3.08 to 3.77 . I did find this - Q. How do I calculate a PPK change when I change my diff ratio? A. See viewtopic.php?f=3&t=5670#p84421 But I can't find any PPK...
by Jaso74
Sun Mar 30, 2025 4:16 pm
Forum: Realtime Delco Tuning
Topic: Idle Spark not correct ?
Replies: 3
Views: 2783

Idle Spark not correct ?

Hey guys . Not too sure what is happening or why , assume there is a simple answer I'm missing though . Changed my cam and retuned as required, getting pretty close pretty quick but I have a erronous timing showing up in tp5 display at idle. I'm 424 ecu and 11P on a 355 for some basic specs . I have...
by Jaso74
Sun Jun 23, 2024 6:03 pm
Forum: Realtime Delco Tuning
Topic: Wideband recommendation
Replies: 34
Views: 36250

Re: Wideband recommendation

Good idea on the reg.
I actually have a brand new Bosch one in the box so might as well throw it on .
I started it again today and still very rich and flood like on cold start , same conditions probably only 2-4C degrees .
by Jaso74
Sat Jun 22, 2024 9:37 am
Forum: Realtime Delco Tuning
Topic: Wideband recommendation
Replies: 34
Views: 36250

Re: Wideband recommendation

Hey . 6 month , that went quick ! Seems a while back now trying to remember but I had some issues with my WB fitment and couldn't get gauge or reading on TP5 working properly initially . As it turned out I had several earthing issues that I had to address to get it all working well. I did do the res...
by Jaso74
Thu May 23, 2024 6:36 pm
Forum: Engine/Transmision Mechanical
Topic: Holden 355 compression on NZ fuel
Replies: 7
Views: 10732

Re: Holden 355 compression on NZ fuel

I have a crow 4503 with 10.2 :1 , 355 , cast heads, and I have had to gut my timing to stop pinging. It still goes great on 98 , super responsive but it appears my cylinder pressure might be a tiny bit much with that cam . I wondered if as the weather cooled a little it might have been a bit less p...
by Jaso74
Wed May 22, 2024 9:30 pm
Forum: Engine/Transmision Mechanical
Topic: Holden 355 compression on NZ fuel
Replies: 7
Views: 10732

Re: Holden 355 compression on NZ fuel

I have a crow 4503 with 10.2 :1 , 355 , cast heads, and I have had to gut my timing to stop pinging. It still goes great on 98 , super responsive but it appears my cylinder pressure might be a tiny bit much with that cam . I wondered if as the weather cooled a little it might have been a bit less pr...