Custom cam OK for MAP and a '7730 ECM?
Thread Starter
Senior Member
Joined: Apr 2003
Posts: 500
Likes: 0
From: Christchurch, New Zealand
Car: 1989 Trans Am
Engine: 1989 305 TPI
Transmission: 700-R4
Axle/Gears: 2.77 10 bolt
Custom cam OK for MAP and a '7730 ECM?
Hi everyone,
I'm considering moving my '89 Trans Am from MAF and the '165 ECM to MAP with the '7730 ECM. Before I do I'm wondering if my modified 305 would be controlled better by MAP vs MAF.
I've attached the specs of my camshaft to this thread for people to consider. In addition, I'm running 24pd SVO injectors, the factory heads have slightly larger intake and exhaust valves and 18 thousands of an inch has been removed from the deck of the block. I use 91 octane fuel.
Much appreciated.
I'm considering moving my '89 Trans Am from MAF and the '165 ECM to MAP with the '7730 ECM. Before I do I'm wondering if my modified 305 would be controlled better by MAP vs MAF.
I've attached the specs of my camshaft to this thread for people to consider. In addition, I'm running 24pd SVO injectors, the factory heads have slightly larger intake and exhaust valves and 18 thousands of an inch has been removed from the deck of the block. I use 91 octane fuel.
Much appreciated.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Custom cam OK for MAP and a '7730 ECM?
It will be fine with some tuning. It looks like a pretty mild cam, good for a street 305 tpi deal
Thread Starter
Senior Member
Joined: Apr 2003
Posts: 500
Likes: 0
From: Christchurch, New Zealand
Car: 1989 Trans Am
Engine: 1989 305 TPI
Transmission: 700-R4
Axle/Gears: 2.77 10 bolt
Re: Custom cam OK for MAP and a '7730 ECM?
Thanks for confirming that. '7730 upgrade here we come!
Joined: Mar 2006
Posts: 4,370
Likes: 17
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: Custom cam OK for MAP and a '7730 ECM?
You can keep the '7165 and go to speed density, using $12P code. I used it briefly on one of my projects. I just didn't have enough time to re-tune for the change in code and ECM (I made an adapter to go from a '7730 to the '7165), but it had a lot of cool features, including programmable extra outputs, and a datalog update rate that is much higher than the '7730.
