Just got off the phone with Ken about my 383/ATI plans.. I have some options! HELP!
08-31-2004, 09:22 AM
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Just got off the phone with Ken about my 383/ATI plans.. I have some options! HELP! Ok guys.. As you saw in the other thread here are my plans... Since the car is down...
Stage 1 (Now) Complete Short Block Bottom end...
383 Rotating Assembly...
LS6 Ported Oil Pump
Timing Chain..
Stage 2. WINTER
Head / Cam Package
New Valvetrain
LT Headers
Stage 3 SUMMER
ATI
12 Bolt
here is the thing though...
I know the ATI can only make so much boost..
He suggested either going with 8 to 1 pistons now and pick the H/C package to match that or....
get flat top pistons now which will give me a 10 to 1 comp and just get low compression heads later on to take the compression back down...
If I go with low compression pistons and BIG massivly ported heads will my compression drop below 8 to 1?
Since I'm doing it in stages I wanna do it right..
He said he woudl come up with a plan for the piston and heads combo and call me this morning. I'm just trying to get my own understanding as well.
Any Suggestions...
Stage 1 (Now) Complete Short Block Bottom end...
383 Rotating Assembly...
LS6 Ported Oil Pump
Timing Chain..
Stage 2. WINTER
Head / Cam Package
New Valvetrain
LT Headers
Stage 3 SUMMER
ATI
12 Bolt
here is the thing though...
I know the ATI can only make so much boost..
He suggested either going with 8 to 1 pistons now and pick the H/C package to match that or....
get flat top pistons now which will give me a 10 to 1 comp and just get low compression heads later on to take the compression back down...
If I go with low compression pistons and BIG massivly ported heads will my compression drop below 8 to 1?
Since I'm doing it in stages I wanna do it right..
He said he woudl come up with a plan for the piston and heads combo and call me this morning. I'm just trying to get my own understanding as well.
Any Suggestions...
08-31-2004, 10:04 AM
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I'm getting so stressed I don't know why.. I just wanna make sure i get it right ya know.. I know they know what they're doing they're the only ones I trust.. But ultimately it's my choice on what decisions to make....
08-31-2004, 10:40 AM
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Go with the 8.0:1 pistons now. (Reverse Dome)
You will not be able to drop to 8.0:1 with a flat top piston and a hogged out chamber in the head.
What are your power goals? The D1SC should support 675RWHP easily through a six speed. Go with the SDCE tensioner setup and the LARGEST front mount intercooler you can afford.
Good luck,
Chris
You will not be able to drop to 8.0:1 with a flat top piston and a hogged out chamber in the head.
What are your power goals? The D1SC should support 675RWHP easily through a six speed. Go with the SDCE tensioner setup and the LARGEST front mount intercooler you can afford.
Good luck,
Chris
08-31-2004, 12:33 PM
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Keep this in mind. your car will be a pooch with the 8:1 naturally aspirated...
add the heads and cam and it will still be a pooch relatively speaking
Forced induction is the only thing to save you.
things never go as planned.
I would go the other way..when the time comes I would use a big head and head gasket to get it down..maybe AFRs with big chambers..
add the heads and cam and it will still be a pooch relatively speaking
Forced induction is the only thing to save you.
things never go as planned.
I would go the other way..when the time comes I would use a big head and head gasket to get it down..maybe AFRs with big chambers..
08-31-2004, 01:14 PM
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Originally Posted by SAM98WS6
Keep this in mind. your car will be a pooch with the 8:1 naturally aspirated...
add the heads and cam and it will still be a pooch relatively speaking
Forced induction is the only thing to save you.
things never go as planned.
I would go the other way..when the time comes I would use a big head and head gasket to get it down..maybe AFRs with big chambers..
add the heads and cam and it will still be a pooch relatively speaking
Forced induction is the only thing to save you.
things never go as planned.
I would go the other way..when the time comes I would use a big head and head gasket to get it down..maybe AFRs with big chambers..
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08-31-2004, 01:42 PM
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Originally Posted by PHANTA-Z
I have two customers running around with $7k longblocks right now in cars that dont make what a stock version of the same car makes, simply because they went the low comp route and now are short the $5k for a blower setup. Not a good place to be. Hate to rain or your parade, but this is one reason i like nitrous for people who dont have a jillion dollars to play with. If your gonna do a dedicated blower motor, save up until you have enough for the motor AND the blower at the same time. Otherwise im with ^^^^, just do a 10:1 motor (which you can put boost to no problem) and you wont be sorry.
08-31-2004, 03:16 PM
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Well Why don't I do the Blower first and then H/C...
My car is not running now.. 3 blown pistons. low compression stroker now..
blower winter..
H/C spring time?
I have to make my decision now!
My car is not running now.. 3 blown pistons. low compression stroker now..
blower winter..
H/C spring time?
I have to make my decision now!
08-31-2004, 03:49 PM
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Originally Posted by Chris ARE 385
Go with the 8.0:1 pistons now. (Reverse Dome)
You will not be able to drop to 8.0:1 with a flat top piston and a hogged out chamber in the head.
What are your power goals? The D1SC should support 675RWHP easily through a six speed. Go with the SDCE tensioner setup and the LARGEST front mount intercooler you can afford.
Good luck,
Chris
You will not be able to drop to 8.0:1 with a flat top piston and a hogged out chamber in the head.
What are your power goals? The D1SC should support 675RWHP easily through a six speed. Go with the SDCE tensioner setup and the LARGEST front mount intercooler you can afford.
Good luck,
Chris
08-31-2004, 05:21 PM
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You can make decent power on the 8:1 motor with the right heads/cam. Over 400RWHP easily. It'll be fine until you do the blower. You CAN do the 5.3L but I think it is a waste of money. I have seen bigger cube 8:1 motors make anywhere between 400-440RWHP depending on the configuration
Do it right from the beginning. That means full fuel system, BIG injectors, great heads, tuning etc etc.
Have a look at what NOGO is doing. (Kevin)
Do it right from the beginning. That means full fuel system, BIG injectors, great heads, tuning etc etc.
Have a look at what NOGO is doing. (Kevin)
09-01-2004, 08:53 AM
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PM Nogo on the board or post your qestions on the FI section.
You want to keep the comp around 8:1 and size/pulley the blower to flow the cfm you want. NoGo is at ~15#s boost, makes HUGE power and does it on pump gas with no issues at all. There arent many guys making close to 700RWHP on pump gas with a D1 blower. 9:1 is too high imo. Go with 8:1-8.25:1
You want to keep the comp around 8:1 and size/pulley the blower to flow the cfm you want. NoGo is at ~15#s boost, makes HUGE power and does it on pump gas with no issues at all. There arent many guys making close to 700RWHP on pump gas with a D1 blower. 9:1 is too high imo. Go with 8:1-8.25:1
09-01-2004, 10:00 AM
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Well Ken Said he has it all mapped out for me..
He's going to email me his plans this afternoon..
I told him I want a goal of 500-600 HP as a Daily Driver With minimal maintance and heat issues and well he knows his ****..
I trust him so I'll let you guys know what he plans....
Thanks..
He's going to email me his plans this afternoon..
I told him I want a goal of 500-600 HP as a Daily Driver With minimal maintance and heat issues and well he knows his ****..
I trust him so I'll let you guys know what he plans....
Thanks..
09-01-2004, 12:40 PM
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With a Supercharger setup i wouldnt go under 9.1 C/R. The lowest i would go would be 8.8 C/R. The reason is because its harder to get boost out of a SC than a turbo. If u had a turbo setup i would have told u 8.0 or 8.5 would be fine. Almost every .1 decrease in C/R is around 8 rwhp lose. So if u went down to 8.0 C/R and u couldnt get 18-19psi out of the D-1SC which is going to be the case then it doesnt make sense to go that low with the C/R. I think the max psi u can get out of a D-1SC on a 383CID will be around 15psi. So a 9.1C/R and 14-15psi would be ideal for such a setup. 16psi on a 8.0C/R will produce less power than 15psi on a 9.1C/R. Also the 9.1C/R will have a faster throttle response than a 8.0 C/R. This is what I'm going with anyways. 
Good luck.
Good luck. 
