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Stock turbo - how much boost???

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Old Jan 16, 2008 | 08:26 PM
  #31  
EVO8URV8's Avatar
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From: District 9
Originally Posted by 04AWDTURBOEVO
Manual Boost controllers are VERY good. They do the work, and they are much less money. But, to trash an AVC-R for one, is, well, you know what I mean, .
I rather have this than that AVC-R. Can't get more easier/simpler with a flick of a switch between high and low boost.

Even better, ECU-based boost control: just switch the pump gas map to race map. (unless u have meth, then u can stay on the pump/meth map)
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Old Jan 16, 2008 | 08:30 PM
  #32  
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It all depends on your tune. You can run higher boost with less timing or lower boost with more timing it all depends. It is good to get somewhere in between. I am tuned at 23psi right now.
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Old Jan 16, 2008 | 10:09 PM
  #33  
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From: hunting v8s
Originally Posted by V.8MR
no tune required. The stock motor can take more than the turbo can put out. Just crank that bish up mang. DOnt worrRy
well u can do that with ur car but don't tell someone who trying to learn


OTE=fas-n-furyus;5162118]do i need to change the head stud bolts to ARP?

dont want them to stretch and blow the head off....lol

will the rod and the rod bolts hold also?[/QUOTE]

yes if u r going to boost ur car more then 26-27psi, right now i'm tune for 24psi so is ok but i'm going with meth soon so i need to get head studs too.

Originally Posted by housedj
i modded the wastegate & got my stock VIII turbo to spike 37PSI once. i haven't spiked that high since but i do run 30PSI on Sunoco 110 leaded...
i did that to a forge i did spike 33psi almost instanlly got scare

Originally Posted by 04AWDTURBOEVO


I know what you mean, but it is the 21st Century.
Today it is all about Electronics .

That is why FWD cars are going 7's at over 180 mph and RWD Imports going sub 6.5 1/4 mile times at over 220 mph.

This was not possible, even in the 90's.

Not much goes wrong with Electronics. The majority of the problem is that consumer X buys it, and never understands how they work. They either never learn how to use them, or don't try, and give up.

Manual Boost controllers are good. They do the work, and they are much less money. But, to trash an AVC-R for one, is, well, you know what I mean, .
+1, i used to have a mbc but swith to ebc i like it better

Originally Posted by EVO8URV8
I rather have this than that AVC-R. Can't get more easier/simpler with a flick of a switch between high and low boost.

Even better, ECU-based boost control: just switch the pump gas map to race map. (unless u have meth, then u can stay on the pump/meth map)
i have the greddy ebc hi/lo settings
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Old Jan 16, 2008 | 10:16 PM
  #34  
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From: Ft. Lauderdale, Fl
Originally Posted by blackdemon
At 30psi our stock turbos are not so efficient .

On pump gas or race gas 30psi is a waste, after 28 psi its pointless.


Now lets go a step further and ask how meth helps a car perform. It cools the air down making say... 34psi of hot air into 34psi of cool usable air.

The results of a moderate afr and moderate timing...




Pretty impressive for stock cams, stock turbo, stock o2 housing and stock header. No tricks or lies.


For a comparison, the same car on c16 with a much more aggressive tune wouldnt make over 410whp. On a larger turbo this obviously wouldnt be the case, im testing it with a 3065 on my car to see what power i can make on pump and what i can do on meth.


Cheers!
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Old Jan 16, 2008 | 11:57 PM
  #35  
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/\/\/\/\nice!

2bar isn't too much to ask from the stock turbo, but they are out of their effiency bands. its been done for a long time now though.

Chris.
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Old Jan 17, 2008 | 12:29 AM
  #36  
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From: District 9
Originally Posted by evo8fl
i have the greddy ebc hi/lo settings
I rather have the MBC from Buschur. Less complicated than electronic ones
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Old Jan 17, 2008 | 04:38 AM
  #37  
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From: sc
Be careful when pushing the stock turbo to high pressures, the exhaust pressure will likely be much higher in the cast pushing the exhaust back in to the chamber during valve overlap. This can blow up well tuned engine where EGT's are much higher than CHT's then suddenly CHT's reach temps equivalent to timing over advance
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Old Jan 17, 2008 | 11:01 AM
  #38  
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i hear you....i like my mbc

Originally Posted by 04AWDTURBOEVO


I know what you mean, but it is the 21st Century.
Today it is all about Electronics .

That is why FWD cars are going 7's at over 180 mph and RWD Imports going sub 6.5 1/4 mile times at over 220 mph.

This was not possible, even in the 90's.

Not much goes wrong with Electronics. The majority of the problem is that consumer X buys it, and never understands how they work. They either never learn how to use them, or don't try, and give up.

Manual Boost controllers are good. They do the work, and they are much less money. But, to trash an AVC-R for one, is, well, you know what I mean, .
Reply
Old Jan 18, 2008 | 10:10 AM
  #39  
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Back in October 2005 before many had their Evo's we did 405/445.1tq on a Mustang Dyno's lower reading numbers without mivec on a 2005 MR. With headstuds and a good tuner, you can be safe.

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Old Jan 18, 2008 | 10:23 AM
  #40  
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Originally Posted by EVO8URV8
I rather have this than that AVC-R. Can't get more easier/simpler with a flick of a switch between high and low boost.
Hmm. That's kinda pricey for two MBC's, isn't it?

http://evo.dejonpowerhouse.com/

Click on BOOST CONTROLLERS and then scroll down to DUAL MANUAL BOOST CONTROLLERS and then look at their MED-HI DUAL CONTROLLER.
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Old Jan 18, 2008 | 06:24 PM
  #41  
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Originally Posted by TTP Engineering
Back in October 2005 before many had their Evo's we did 405/445.1tq on a Mustang Dyno's lower reading numbers without mivec on a 2005 MR. With headstuds and a good tuner, you can be safe.



Back then, it was not a Lower reading Mustang Dyno.
As you can see, a few Months earlier, I had used the Dyno. Made HP too, with smaller Cams, and as you can tell, less Boost, on the little 9.8 VIII Turbo.

The point is, don't say the Dyno was Low Reading. It was program like a Dynojet, . No way we made that much Power like a Mustang Dyno with the Mods we both had back then. Still, not bad as we both have allways been on the cutting edge.

Good Old Days. Back in early 2005, ha!


Last edited by 04AWDTURBOEVO; Jan 18, 2008 at 06:34 PM.
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Old Jan 18, 2008 | 06:25 PM
  #42  
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I've seen some people on here make over 500 whp with the fp green..
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Old Jan 18, 2008 | 06:43 PM
  #43  
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From: Orlando, Florida
Originally Posted by boostin06ggevo
I've seen some people on here make over 500 whp with the fp green..
Can you post some of those Dyno graphs where some of them make over 500 whp on the Green .

Thank you.

PS. I boosted my 9.8 VIII Turbo to 31 psi for a long while. I got it here in a box at home after I put it away when I intalled the 20G-LT.
The Shaft is Solid as a Rock. No play or movement.
The Stock 16G Turbo is a great product.

Feel fine boosting it up to 31 psi and it will still be reliable and make power.
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Old Jan 19, 2008 | 01:18 AM
  #44  
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TTP's curves are the oddest curves I have ever ever seen on a mustang chart. Why does the torque hit hard, then kinda curve up to a point then drop?

Had over 100 evos on a mustang and I have never seen curves like that.

Not challenging you TTP at all just find the curves really really odd. It's almost like it wasn't 100% WOT until 3500-3600 then you went WOT. The sharp point I can't really explain however.
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Old Jan 19, 2008 | 08:35 AM
  #45  
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Boost spike and custom cam degree settings for high torque.
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