What can I do for Timing/Fuel management if I turbo my

[Line Noise]

Caddy 4.9
I must stay with the stock ECM as it controls the tranny and a seperate Tranny controller or a non E tranny would eat my budget up quickly.

Issues.
1. No Knock sensor on my motor, what do I need to add one? any reocmmendations?

2. Could I just use an MSD Timing retard system to pull timing when under being inducted?

3. Fuel Mgmt under 5PSI do I really need to worry about it?

[Sean124]

Do not do it. Headgaskets barely hold at stock power levels. There maybe software out there for the box from www.tunercat.com (http://www.tunercat.com) or we might be able to hack it out.

Sean

[Line Noise]

Do not do it. Headgaskets barely hold at stock power levels. There maybe software out there for the box from www.tunercat.com (http://www.tunercat.com) or we might be able to hack it out.

Sean

I've seen the 4.9 turbo'd and running 8 Psi and it has damn near 1000 1/4 mile passes. 4 trannies, nothing done to the motor since (other than head work to decrease compression), I have a full write up how he did it, however he used a diffrent ecm which won't control the tranny so.

He was running 11.5 -12.20 I have video somewhere.

[Sean124]

I think you could use the stock Box whats the part number ????


Sean

I've seen the 4.9 turbo'd and running 8 Psi and it has damn near 1000 1/4 mile passes. 4 trannies, nothing done to the motor since (other than head work to decrease compression), I have a full write up how he did it, however he used a diffrent ecm which won't control the tranny so.

He was running 11.5 -12.20 I have video somewhere.

[Line Noise]

I think you could use the stock Box whats the part number ????


Sean

No fuggin clue caddilac 4.9 from 93 deville

[97blksvt]

a custom tune would be the best if you ask me

[Sean124]

Get me a part number off the box.

Sean


No fuggin clue caddilac 4.9 from 93 deville

[Line Noise]

Get me a part number off the box.

Sean

Ok gonna be a few days just had surgery and the arms still sore.

[Line Noise]

Get me a part number off the box.

Sean

Hey Sean sorry for the delay anyways I'm using a 2240 PCM, The Chip has been reprogrammed already, however the guy who did it will reprogram for a diffrent tune upon request.

One option would be to use a 749 PCM, which is the Syclone 2 Bar Map, It's been tried on the 4.9 and they didn't have much luck RPM Surge. I don't think the 749 has the ability to control a E Tranny so here's my current thinking.

ECU/4.9/4T60E (2240 PCM)
Shift Kit for 4T60E (2 Choices B&M, or Transgo) Leaning towards B&M
Additional injector controller (any recommendations?)
Crane ignition with 2 bar map and boost retard
HX40 Holset turbo with 6psi wastegate (adjusted to 5psi)
Bosch pop off valve on the intake side.
Knock Sensor (Autozone part number SU1128 $35)
Alcohol Injection
Possibly Inter cooler (mounting / location will require some engineering)

[Sean124]

749 is not E tranny friendly or capable. I will need that prom to snag a copy of the prom if you can bring the PCM over here I can read it right off.. However there is an older 4t60 thm440 that is non electronic that will bolt in.

Sean


Hey Sean sorry for the delay anyways I'm using a 2240 PCM, The Chip has been reprogrammed already, however the guy who did it will reprogram for a diffrent tune upon request.

One option would be to use a 749 PCM, which is the Syclone 2 Bar Map, It's been tried on the 4.9 and they didn't have much luck RPM Surge. I don't think the 749 has the ability to control a E Tranny so here's my current thinking.

ECU/4.9/4T60E (2240 PCM)
Shift Kit for 4T60E (2 Choices B&M, or Transgo) Leaning towards B&M
Additional injector controller (any recommendations?)
Crane ignition with 2 bar map and boost retard
HX40 Holset turbo with 6psi wastegate (adjusted to 5psi)
Bosch pop off valve on the intake side.
Knock Sensor (Autozone part number SU1128 $35)
Alcohol Injection
Possibly Inter cooler (mounting / location will require some engineering)

[Line Noise]

749 is not E tranny friendly or capable. I will need that prom to snag a copy of the prom if you can bring the PCM over here I can read it right off.. However there is an older 4t60 thm440 that is non electronic that will bolt in.

Sean

I've really though about going that route. If I do go from -E to non E tranny I'll most likely go 4T80 as it's stronger. Heavier but stronger. Right now I'm still thinking how I want to do it. get a budget together and start acquiring parts, maybe use this winter to build it :D

[Sean124]

If your going that far just drop a Northstar in it and Be done.

Sean

I've really though about going that route. If I do go from -E to non E tranny I'll most likely go 4T80 as it's stronger. Heavier but stronger. Right now I'm still thinking how I want to do it. get a budget together and start acquiring parts, maybe use this winter to build it :D