383 vortec

[HotWheelsBurban]

Looks great, nice to see the factory accessories and brackets cleared the valve covers ( since they look to be taller than stock tin ones).

 

[Supercharged111]

I reeeeeeaally hope you're planning a tune sooner than later. That's a lot to ask of the stock tune which sucked bad enough to begin with.

 

[Devon 11]

So I had to cut off the back corner of the AC bracket to clear the valve cover. and about the tune I’m planning on getting a tune from black bear before I start it to break it in and than use their cable tune once I get it started to finish the tuning.

 

[Supercharged111]

So I had to cut off the back corner of the AC bracket to clear the valve cover. and about the tune I’m planning on getting a tune from black bear before I start it to break it in and than use their cable tune once I get it started to finish the tuning.

Good deal, he should be able to get you squared away. Now let's see if we can nudge you a little further: 411 swap?

 

[Devon 11]

I’ll have to look into that one I’ve seen it here and there but haven’t actually dove into see what is was all about. I thought it was something for prior to 98.

 

[Supercharged111]

I’ll have to look into that one I’ve seen it here and there but haven’t actually dove into see what is was all about. I thought it was something for prior to 98.

It's more of a necessity for prior to 98, but 98-00 still realize similar benefits. BB can tune your 98 box, but he can't tune a 97 box. The trucks seem to run better on the 411 and they basically use the same operating system as an LS.

 

[L31MaxExpress]

I’m shooting for close to 400. Thats the limit for the stock injection system.

Stock spider runs out about 425-450 hp depending on the BSFC of the engine. 48 lb/hr AUS spider in my 383 is good for more than 500 hp on E85 or ~700 on gasoline. AUS makes an even larger spider as well that can go to ~1,000 hp. From memory the larger spider is 62 lb/hr. AUS rates their flow numbers at 43.5 psi.

 

[Devon 11]

I’ll have to check that out thanks I was trying to find a way to get better injectors and all I had seen was that you were stuck with stock and had to change the entire intake manifold and injection system to get past 400.

 

[HeavyAsAChevy]

Stock spider runs out about 425-450 hp depending on the BSFC of the engine. 48 lb/hr AUS spider in my 383 is good for more than 500 hp on E85 or ~700 on gasoline. AUS makes an even larger spider as well that can go to ~1,000 hp. From memory the larger spider is 62 lb/hr. AUS rates their flow numbers at 43.5 psi.

I thought engines generally made more power on E-85 over gasoline.

 

[tpass]

shoosh, 11.5-1 compression... that is up there at "race gas only" level. Have you done a compression test on it to see what PSI you are getting? it sounds like a nice build though