|
Re: Wanna hear what boost can do?
[Re: Dos Snails]
#677035
05/01/10 10:16 PM
05/01/10 10:16 PM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
Quote:
Quote:
Whoever says there is no replacement for displacement, has never ridden in a fast blown/turbo car!!
ummm yeah but do the same thing to a bigger motor and get BIGGER results.
Yea but I get 30 mpg off boost . 
so?
|
|
|
Re: Wanna hear what boost can do?
[Re: Dos Snails]
#677037
05/02/10 09:40 AM
05/02/10 09:40 AM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
So? Cuz I can up the boost to 25 lbs Rip off some low 12's & woop that Charger of yours & still get 30 mpg on my way home, . 
charger should be running a tad better than that, but if I cared about MPG I would have built a Neon and cranked up the boost. I was going to boost this car but had too much compression so I went w/ a 6-pack instead. I'll just pop the outboards for the long trips...  should be good for 12mpg or so.
|
|
|
Re: Wanna hear what boost can do?
[Re: Duner]
#677038
05/02/10 04:38 PM
05/02/10 04:38 PM
|
Joined: Mar 2010
Posts: 66
SRQ, FL
8valves
member
|
member
Joined: Mar 2010
Posts: 66
SRQ, FL
|
Quote:
Quote:
Just what it added. Thats why the 68 number was so wrong.
Oh, OK. Then it should be more like 27.7 hp gained per lb of boost in my current configuration. That makes more sense anyway.
Yup, you've got it now.
"Optimized" in my book is properly sized turbos for the intended purpose of the vehicle, well done headers with attention paid to lengths and diameters, for both primaries and secondaries, wastegate placement, downpipe and wastegate recirculation, if any, etc.
Then we move to the cold side of things... smooth radius bends, quality intercooler cores stacked for the application, be it super cold charge or minimal pressure drop as a priority.
Then comes the head, camshaft(s). It all works together.
Do you have to do it? Not at all. Some "junk" has gone REAL fast. But if you take the time, effort, and money (HA!) you can see results above and beyond the norm. If you do it well on a high flowing head combination with the right cam you're able to see 40-50 WHP gains per PSI on sub 500" engines.
I couldn't begin to imagine the gains possible on some "big" motors!
Aaron M
|
|
|
Re: Wanna hear what boost can do?
[Re: 8valves]
#677039
05/02/10 05:14 PM
05/02/10 05:14 PM
|
Joined: Nov 2003
Posts: 1,969
Chandler, AZ
Duner
top fuel
|
top fuel
Joined: Nov 2003
Posts: 1,969
Chandler, AZ
|
Quote:
Yup, you've got it now.
"Optimized" in my book is properly sized turbos for the intended purpose of the vehicle, well done headers with attention paid to lengths and diameters, for both primaries and secondaries, wastegate placement, downpipe and wastegate recirculation, if any, etc.
Then we move to the cold side of things... smooth radius bends, quality intercooler cores stacked for the application, be it super cold charge or minimal pressure drop as a priority.
Then comes the head, camshaft(s). It all works together.
Do you have to do it? Not at all. Some "junk" has gone REAL fast. But if you take the time, effort, and money (HA!) you can see results above and beyond the norm. If you do it well on a high flowing head combination with the right cam you're able to see 40-50 WHP gains per PSI on sub 500" engines.
I couldn't begin to imagine the gains possible on some "big" motors!
I apologize for putting the screwy numbers originally. Another part of it is that lower boost numbers seem to do more per lb of boost than it does after you turn it up some. Once it all starts to boost stack it makes lots of back pressure against the exhaust trying to make that additional boost. At least on my junk - then return starts to drop off with additional boost.
|
|
|
Re: Wanna hear what boost can do?
[Re: Duner]
#677040
05/02/10 06:30 PM
05/02/10 06:30 PM
|
Joined: Mar 2010
Posts: 66
SRQ, FL
8valves
member
|
member
Joined: Mar 2010
Posts: 66
SRQ, FL
|
Quote:
Quote:
Yup, you've got it now.
"Optimized" in my book is properly sized turbos for the intended purpose of the vehicle, well done headers with attention paid to lengths and diameters, for both primaries and secondaries, wastegate placement, downpipe and wastegate recirculation, if any, etc.
Then we move to the cold side of things... smooth radius bends, quality intercooler cores stacked for the application, be it super cold charge or minimal pressure drop as a priority.
Then comes the head, camshaft(s). It all works together.
Do you have to do it? Not at all. Some "junk" has gone REAL fast. But if you take the time, effort, and money (HA!) you can see results above and beyond the norm. If you do it well on a high flowing head combination with the right cam you're able to see 40-50 WHP gains per PSI on sub 500" engines.
I couldn't begin to imagine the gains possible on some "big" motors!
I apologize for putting the screwy numbers originally. Another part of it is that lower boost numbers seem to do more per lb of boost than it does after you turn it up some. Once it all starts to boost stack it makes lots of back pressure against the exhaust trying to make that additional boost. At least on my junk - then return starts to drop off with additional boost.
No need for the apology, no big deal! 
What you're seeing is exactly my point of an optimized setup. Sounds like it's time for you to make a jump in either turbine wheel or housing. More than likely wheel. That will have a much more significant difference than a housing AR change.
And I will say it again, keeping that 1:1 PR between intake and exhaust is crucial in making big turbo power.
Aaron M
|
|
|
Re: Wanna hear what boost can do?
[Re: 8valves]
#677041
05/02/10 08:07 PM
05/02/10 08:07 PM
|
Joined: Nov 2003
Posts: 1,969
Chandler, AZ
Duner
top fuel
|
top fuel
Joined: Nov 2003
Posts: 1,969
Chandler, AZ
|
Quote:
No need for the apology, no big deal!
What you're seeing is exactly my point of an optimized setup. Sounds like it's time for you to make a jump in either turbine wheel or housing. More than likely wheel. That will have a much more significant difference than a housing AR change.
And I will say it again, keeping that 1:1 PR between intake and exhaust is crucial in making big turbo power.
I'm pretty sure you are right about that. I'm still amazed it can make almost 700hp thru a single .96 A/R T4 housing/wheel with a full 3" single exhaust. I've been hesitant to change it simply because it's so very responsive on the street. There's no waiting for boost - ever. You hit the throttle and you're busy steering! LOL
|
|
|
Re: Wanna hear what boost can do?
[Re: Fury Fan]
#677043
05/16/10 04:05 PM
05/16/10 04:05 PM
|
Joined: Jun 2007
Posts: 960
NE Ohio
ixelerate
Go Buckeyes!
|
Go Buckeyes!
Joined: Jun 2007
Posts: 960
NE Ohio
|
Was this an ebay turbo or brand name? That car makes some crazy numbers, but I really wonder about longevity, especially on a 24 year old car
[img]  [/img][img]http://i277.photobucket.com/albums/kk45/ixelerate/random/falcon.gif[/img]
|
|
|
|
|
