265 Hemi to efi
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Re: 265 Hemi to efi
Unfortunately I don't have a throttle body here that I can look at. You could examine the port you think it goes to by making sure it is seeing constant vacuum and is on the engine side of the butterfly plate. If you are not sure you can always tee it in with the map sensor line, both see changes in vacuum.
- Holden202T
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Re: 265 Hemi to efi
there is purge and vac together, these are for the charcoal canister lines on a stock commodore. the regulator normally plugs into the hose on the elbow near your brake booster hose. then there is a smaller one in the same spot which is normally the air line for the A/C controls.
at the end of the day as long as the reg see's manifold vacuum it doesn't matter where its connected.
at the end of the day as long as the reg see's manifold vacuum it doesn't matter where its connected.
No matter what the question is, the answer is always more horsepower! 
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread

Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Re: 265 Hemi to efi
Thanks for the replies.
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- Posts: 1961
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LB Lancer 2L turbo & Delco
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Re: 265 Hemi to efi
Cant hear any engine noises yet. Were all impatiently waiting I am sure.
Re: 265 Hemi to efi
Well listen to this. Had to hot wire the fuel pump and it fired up straight away. started off at fast idle for a couple of seconds then settled right down. Sounds awesome. I haven't had time to hook it up to tuner pro as its 39 degrees here today the shed is probably somewhere near 50.
https://m.youtube.com/watch?v=lpbJHHUIKcg
https://m.youtube.com/watch?v=lpbJHHUIKcg
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Re: 265 Hemi to efi
Congratulations sounds good and the throttle response instant. Good starting program. You don't have much time to finish the tune this year.
Re: 265 Hemi to efi
Ive been watching this post like many others with great anticipation, Ive got to say, well done, that sounds great and the throttle response is unreal
Caant wait to see it tuned

Caant wait to see it tuned

According to chemistry, alcohol is a solution...
Re: 265 Hemi to efi
Sounds great ! I have a mate here in vic called Michael Heffernan, any relation?
Re: 265 Hemi to efi
Thanks guys, yeah I was surprised as anything that it ran so well. I was expecting it to spit and fart and carry on and take hours of stuffing around to get it to idle properly. I just need to get the fuel pump wiring sorted out. I reckon it maybe a faulty relay as I remember being only able to get power to the fuel pump brown wire by running a jumper cable across the oil pressure switch
Michael Heffernan might be a distant relation but I don't know him. Cheers
Michael Heffernan might be a distant relation but I don't know him. Cheers
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- Posts: 1961
- Joined: Sat Aug 06, 2011 7:58 am
- cars: V8 VR Commodore BT1
LB Lancer 2L turbo & Delco
Starion TBI with Delco
Mitsubishi Lancer EVO4 track car
NA MX5
3 vintage motor bikes - Location: Padstow NSW
Re: 265 Hemi to efi
Hooray it's a boy. Fantastic to see it start and run so well. Is that the std Commodore program?