Forced Induction Superchargers | Turbochargers | Intercoolers

dart pro 1 turbo set up

Thread Tools
 
Search this Thread
 
Old 12-05-2006, 07:08 AM
  #1  
TECH Resident
Thread Starter
iTrader: (19)
 
bumpin_records's Avatar
 
Join Date: Jan 2004
Location: chicago
Posts: 802
Received 2 Likes on 2 Posts

Default dart pro 1 turbo set up

im posting here due to the set up being a turbo set up. the dart heads out the box would they need to be ported? How much power can those heads make out the box with a turbo set up Pt91 370ci set up. Im looking for 1k at the wheels, can those heads do it or do i have to have them ported and I dont hear nothing about extrude hone. what happen to that, seem like that was a good process.
Old 12-05-2006, 10:38 AM
  #2  
TECH Senior Member
iTrader: (59)
 
MIGHTYMOUSE's Avatar
 
Join Date: Nov 2001
Location: Virginia
Posts: 10,010
Received 45 Likes on 31 Posts

Default

stock heads can do it with enough boost and CI
Old 12-05-2006, 11:21 AM
  #3  
TECH Fanatic
iTrader: (2)
 
Phate's Avatar
 
Join Date: Nov 2001
Location: Northridge, CA
Posts: 1,356
Likes: 0
Received 0 Likes on 0 Posts
Default

extrude honing is ridiculously expensive...I recently priced having some cast manifolds and exhaust housings done and they wanted $1250 and that did not include shipping back and forth...
Old 12-05-2006, 01:39 PM
  #4  
TECH Resident
Thread Starter
iTrader: (19)
 
bumpin_records's Avatar
 
Join Date: Jan 2004
Location: chicago
Posts: 802
Received 2 Likes on 2 Posts

Default

hey mighty mouse whats up. well i wanna make as much power at a lower boost as possible. well i already have the motor 370ci so i want some heads that can flow a hella lot so i dont have to turn up the boost to force the air though. GUess my question now would be get the darts and put the rest of the money into something else than buying the afr or etp heads.

hey phate what heads are you running and what power level your at just wandering
Old 12-05-2006, 01:58 PM
  #5  
TECH Veteran
iTrader: (21)
 
1CAMWNDR's Avatar
 
Join Date: Nov 2001
Posts: 4,247
Likes: 0
Received 2 Likes on 2 Posts

Default

What is the bore on that motor?
Old 12-05-2006, 02:39 PM
  #6  
TECH Senior Member
iTrader: (59)
 
MIGHTYMOUSE's Avatar
 
Join Date: Nov 2001
Location: Virginia
Posts: 10,010
Received 45 Likes on 31 Posts

Default

Originally Posted by bumpin_records
hey mighty mouse whats up. well i wanna make as much power at a lower boost as possible. well i already have the motor 370ci so i want some heads that can flow a hella lot so i dont have to turn up the boost to force the air though.
to each their own but i don't understand why?

i consider boost psi a return on investment.

say now im making 1000 at 23psi or i could spend another 5k on severe headwork and make 1000 at 15psi. what did i gain other than the heads will likely give poorer low rpm performance and worse mileage.

discuss
Old 12-05-2006, 02:56 PM
  #7  
TECH Junkie
iTrader: (14)
 
RealQuick's Avatar
 
Join Date: Feb 2004
Location: MA
Posts: 3,970
Received 15 Likes on 10 Posts

Default

Originally Posted by MIGHTYMOUSE
say now im making 1000 at 23psi or i could spend another 5k on severe headwork and make 1000 at 15psi. what did i gain other than the heads will likely give poorer low rpm performance and worse mileage.

discuss
Motor longevity will be better @ 15psi then 23psi...
Old 12-05-2006, 03:25 PM
  #8  
TECH Resident
Thread Starter
iTrader: (19)
 
bumpin_records's Avatar
 
Join Date: Jan 2004
Location: chicago
Posts: 802
Received 2 Likes on 2 Posts

Default

Originally Posted by 1CAMWNDR
What is the bore on that motor?

4.030
Old 12-05-2006, 04:24 PM
  #9  
427
TECH Junkie
iTrader: (3)
 
427's Avatar
 
Join Date: May 2003
Location: Clayton, North Carolina
Posts: 3,898
Likes: 0
Received 6 Likes on 6 Posts

Default

Intake temps will be lower at 15psi, and it will scare you when you take it to 23psi!!!!!!


Kurt
Originally Posted by MIGHTYMOUSE
to each their own but i don't understand why?

i consider boost psi a return on investment.

say now im making 1000 at 23psi or i could spend another 5k on severe headwork and make 1000 at 15psi. what did i gain other than the heads will likely give poorer low rpm performance and worse mileage.

discuss
Old 12-05-2006, 04:26 PM
  #10  
TECH Fanatic
iTrader: (2)
 
Phate's Avatar
 
Join Date: Nov 2001
Location: Northridge, CA
Posts: 1,356
Likes: 0
Received 0 Likes on 0 Posts
Default

I am running stock ported OLD castings. Engine made 1100 on the engine dyno at W2W @ 20psi...I have since switched cams on W2Ws recommendation...car should be on the dyno soon. Should make 1000rwhp no problem.
Old 12-05-2006, 04:36 PM
  #11  
TECH Senior Member
iTrader: (59)
 
MIGHTYMOUSE's Avatar
 
Join Date: Nov 2001
Location: Virginia
Posts: 10,010
Received 45 Likes on 31 Posts

Default

Originally Posted by 427
Intake temps will be lower at 15psi, and it will scare you when you take it to 23psi!!!!!!


Kurt
they would be lower for a given combination, but if you size the intercooler appropriate for the application it could be around the same. (20% bigger etc)

and since he is building for 1000rwhp, i assume he is not shooting for more than that after x amount of time.

real quick.. i need more info on longevity? engine makes 1000hp either way = same cylinder pressure no?
Old 12-05-2006, 04:42 PM
  #12  
LS1Tech Co-Founder
iTrader: (34)
 
Pro Stock John's Avatar
 
Join Date: Nov 2001
Location: Chicago, IL
Posts: 44,773
Received 1,221 Likes on 778 Posts
LS1Tech 10 Year
Default

I'd go with aftermarket heads for 1000rwhp, one value is having better clamping over stock heads. I think KP is running unported Dart heads. I'm running unported AllPro heads.
Old 12-05-2006, 04:50 PM
  #13  
TECH Senior Member
iTrader: (59)
 
MIGHTYMOUSE's Avatar
 
Join Date: Nov 2001
Location: Virginia
Posts: 10,010
Received 45 Likes on 31 Posts

Default

im not saying its not a good idea to invest in heads as a mod, or that these are not good heads, but its proven it doesnt require them to make his goal horsepower.
Old 12-05-2006, 04:58 PM
  #14  
LS1Tech Co-Founder
iTrader: (34)
 
Pro Stock John's Avatar
 
Join Date: Nov 2001
Location: Chicago, IL
Posts: 44,773
Received 1,221 Likes on 778 Posts
LS1Tech 10 Year
Default

My 8:1 348ci made 867rwhp with 25psi thru an A3. I think 370ci with a 91mm turbo will hit 1000rwhp around 25psi... But just go for it and and keep us posted.
Old 12-05-2006, 05:22 PM
  #15  
TECH Resident
Thread Starter
iTrader: (19)
 
bumpin_records's Avatar
 
Join Date: Jan 2004
Location: chicago
Posts: 802
Received 2 Likes on 2 Posts

Default

well i just got the engine back and i do have the money for the darts right now. Im gonna call speed inc tomorrow. I just wanted to know if i get the dart heads i dont have to dump a lot of money in them vs. just buying some afr or etp. I seen a set of etp's and i was very impressed with the cnc ports. Are the darts cnc ported? Mighty mouse i do see a lot of peeps runnins stock ported heads making some good numbers. Hell i have a set of 317's sitting next to the car right now but i dont mind paying for the darts if they donna do the job i want and that is hitting 1000 at the wheels. If you all say they will out the box im gonna get em this week. Now on a nother note. intakes i see guys running 8.50 with ls6 why buy a carb intake?

John hows the flow numbers on those allpro heads did you have to have any work done to them
Old 12-05-2006, 08:00 PM
  #16  
10 Second Club
iTrader: (2)
 
Got Me SOM's Avatar
 
Join Date: Sep 2002
Location: Orlando, Florida
Posts: 6,368
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by MIGHTYMOUSE

real quick.. i need more info on longevity? engine makes 1000hp either way = same cylinder pressure no?
simply no. more efficicient the combinatin the less boost and cylinder pressure you'll need to make the power level you want.
Old 12-05-2006, 09:52 PM
  #17  
427
TECH Junkie
iTrader: (3)
 
427's Avatar
 
Join Date: May 2003
Location: Clayton, North Carolina
Posts: 3,898
Likes: 0
Received 6 Likes on 6 Posts

Default

Boost is not "free" it just seems that way because its easy to turn up. Every time something in your system needs to work harder, something else needs to make up for it. The 1000hp dyno shot could be done with Dart 225's no doubt.
The higher boost engine will run more heat in the intake and ex. This will cause more chance of failure sooner, but how much sooner is a mystery.


Kurt
Originally Posted by MIGHTYMOUSE
they would be lower for a given combination, but if you size the intercooler appropriate for the application it could be around the same. (20% bigger etc)

and since he is building for 1000rwhp, i assume he is not shooting for more than that after x amount of time.

real quick.. i need more info on longevity? engine makes 1000hp either way = same cylinder pressure no?
Old 12-05-2006, 10:39 PM
  #18  
11 Second Club
iTrader: (20)
 
SScam68's Avatar
 
Join Date: Sep 2002
Location: Albuquerque NM - The Land of 8000ft DA
Posts: 2,686
Likes: 0
Received 3 Likes on 3 Posts

Default

I agree, I don't know why in the world you would want to make the system work harder than is has too. I guess for bragging rights? To be cool?

I reasonably ported set of heads doesn't cost a fortune, you're in the right frame of mind bumpin.
Old 12-06-2006, 04:37 AM
  #19  
TECH Resident
Thread Starter
iTrader: (19)
 
bumpin_records's Avatar
 
Join Date: Jan 2004
Location: chicago
Posts: 802
Received 2 Likes on 2 Posts

Default

well im gonna go for the dart heads. A lot of people are stuck on the term boost. Oh im running 30lbs of boost like the import guys. well i wanna say i made 1k at 15lbs of boost. So you can say im stuck on cfm's , I want as much flow as possible. I may not be right but i went with a 370ci cause i wanted a big bore with not a big stroke. i can spin it higher if i need to hopefully i dont. but do anyone have any imput on the intake theory. ls6 vs carb intake?
Old 12-06-2006, 06:04 AM
  #20  
TECH Enthusiast
iTrader: (5)
 
LS2Camaro's Avatar
 
Join Date: Apr 2006
Location: Hawaii
Posts: 605
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by bumpin_records
but do anyone have any imput on the intake theory. ls6 vs carb intake?
That is a whole other topic all in its own, check out these Threads. These should keep you busy for a while.

https://ls1tech.com/forums/forced-induction/605899-reason-switching-carb-intake.html
https://ls1tech.com/forums/forced-induction/610806-what-intake-manifold.html
https://ls1tech.com/forums/forced-induction/608508-victor-jr-efi-intake-346-d1-worth.html


Quick Reply: dart pro 1 turbo set up



All times are GMT -5. The time now is 02:17 PM.