66shelby
Well-known member
I have always tried to over analyze things, but if I've learned anything from this forum, multitudes of heads are better than 1. I have seen some amazing insight and information here. I too underwent withdrawl when the site was down.
I have some questions.
I am working with a stock 78 250 8:1 comp.
I have fabricated a tubular turbo exhaust manifold from steel weld ells.
I have two T3 45 trim turbos. Both need rebuilt, about $100 a piece.
I plan to setup with Holley 2v upgrading to a Ford CFI / Megasquirt later.
I am building a DD out of this. With the stock cam and mild porting I expect decent off boost performance.
Using the FAQ sticky (Thanks Linc's!)
The comp map shows the T3 at 70% for the requirement on flow from 1800 (9.5 lbs/min) to 3500 (18.5 lbs/min) rpm. Can I expect to have maximum response in this range?
At 70% efficiency I feel like an inter cooler would be a good plan even for stoplight jaunts. Right or wrong.
I don't like reving the motor hard, and when you see 300 ft/lb numbers at low rpm it lights me up!
On the exhaust manifold I have circular entries larger than the ports. I want to enlarge the exhaust ports to match and trim a factory gasket. Has anyone tried to make thier own exhaust gaskets from, like sheet copper? I have one of the sliced head cutaways, but its the intake. Doe's anyone have one of the exhaust?
Sorry I can't post the maps and drawings, I am better with cars!
I have some questions.
I am working with a stock 78 250 8:1 comp.
I have fabricated a tubular turbo exhaust manifold from steel weld ells.
I have two T3 45 trim turbos. Both need rebuilt, about $100 a piece.
I plan to setup with Holley 2v upgrading to a Ford CFI / Megasquirt later.
I am building a DD out of this. With the stock cam and mild porting I expect decent off boost performance.
Using the FAQ sticky (Thanks Linc's!)
The comp map shows the T3 at 70% for the requirement on flow from 1800 (9.5 lbs/min) to 3500 (18.5 lbs/min) rpm. Can I expect to have maximum response in this range?
At 70% efficiency I feel like an inter cooler would be a good plan even for stoplight jaunts. Right or wrong.
I don't like reving the motor hard, and when you see 300 ft/lb numbers at low rpm it lights me up!
On the exhaust manifold I have circular entries larger than the ports. I want to enlarge the exhaust ports to match and trim a factory gasket. Has anyone tried to make thier own exhaust gaskets from, like sheet copper? I have one of the sliced head cutaways, but its the intake. Doe's anyone have one of the exhaust?
Sorry I can't post the maps and drawings, I am better with cars!
