[ArtVandelay0023]

Re: How much BOOST to achive 450bhp (Geisler14)

I think 10psi is unnecessarily too low. 14-15psi (OEM specifications) will do.

 

[JKMachine]

Re: How much BOOST to achive 450bhp (Geisler14)

this is kind what i was just asking. You could use this as well i think to creat your "Travel Mode"

Product Description

All the things that you like about the Standard Boost Controller with the added ability to switch between 2 pre-set boost levels from inside the cabin - even when under full boost! The TurboXS Dual Stage Boost Controller is installed in line with the pressure hose running from the positive pressure side of the turbo to the waste gate actuator system. A switch is wired back to the cabin to switch between boost levels. The switch is lit when on high boost. Ideal for setting street level boost, and racing level boost. Fits all 90-99 Talon, eclipse turbo, and 91-92 Galant Vr-4 turbo.

 

[jdog]

Re: How much BOOST to achive 450bhp (JKMachine)

"You'll shoot your eye out kid"

 

[JKMachine]

Re: How much BOOST to achive 450bhp (jdog)

Do you think so?

 

[AthruC]

Re: How much BOOST to achive 450bhp (JKMachine)

http://www.ecstuning.com

"Forge quality in-car boost controller for those who want to fine tune their boost levels from inside the cabin. Will work on any turbocharged car with a internal or external wastegate that is vacuum/boost controlled"

 

[AthruC]

Re: How much BOOST to achive 450bhp (AthruC)

"Boost gauge kit from MHW. White peformanced faced gauges with "touch color" technology. This allows the user to control the backlighting colors from red blue or green"

Too tacky?

 

[Needsdecaf]

Re: How much BOOST to achive 450bhp (AthruC)

A small interjection......

In Art's case, the buildup of heat associated with hard running from a long period of time was the culprit. Remember though, that at cruising, even on the autobahn, your'e not pulling a lot of boost. I would very much like to see those with a boost gauge tell me (legally of course) what they see at a 100 mph cruise with small throttle inputs to maintain speed.

Upgraded DP, Exhaust and IC is necessary to keep intake and exhaust temps low.

 

[R Kelly]

Re: How much BOOST to achive 450bhp (Needsdecaf)

Quote, originally posted by Needsdecaf »

Upgraded DP, Exhaust and IC is necessary to keep intake and exhaust temps low.

And a ram-air CAI, VERY effective at those speeds.

 

[ArtVandelay0023]

Re: How much BOOST to achive 450bhp (Needsdecaf)

Quote, originally posted by ArtVandelay0023 »

More pressure = More heat

I think I may be slightly wrong on this. It's been a while since college. Doesn't more pressure = more energy , which coverts to heat?

 

[AthruC]

Re: How much BOOST to achive 450bhp ("R" Kelly)

I've forgotten 99% of the physics I've known, so I'm just going to stay out of that one... My question for "R" Kelly is - can you flip your setup around for the right side vent and get dual ram-air?

 

[R_Rated]

Re: How much BOOST to achive 450bhp (JKMachine)

Quote, originally posted by JKMachine »

so in your case art would it be good/bad to have a way to switch your boost levels from 20-21psi to say 10 or so for long distances? I have seen ways to do this but i do not remember the names of them.

long distance doesn't matter. You will be at 0 boost cruising at 75 regardless of turbo or tune.

 

[R_Rated]

guys, just to clear things up. You can cruise in our cars at 100mph and even when going uphill rarely hit 10psi. You really have to be on the gas to be at boost in excess of 15psi. anything over that and you ARE speeding up... not maintaining cruise and certainly not the flow of traffic. Normal driving will NOT keep the R in upper boost levels.

 

[R Kelly]

Re: How much BOOST to achive 450bhp (AthruC)

Quote, originally posted by AthruC »

I've forgotten 99% of the physics I've known, so I'm just going to stay out of that one... My question for "R" Kelly is - can you flip your setup around for the right side vent and get dual ram-air?

Someone is trying that, the problem was routing the air all the way from over there. But with a long enough hose sure why not. You would want to open a second hole in the air box behind current one, but with two ram air CAIs blasting onto filter, plus stock intake, I think you would completely eliminate vacuum even below 30 mph, and generate serious positive pressure inside box above 40 mph.

I think that would make turbo spool up very quickly...

 

[Needsdecaf]

Re: (R_Rated)

Quote, originally posted by R_Rated »

guys, just to clear things up. You can cruise in our cars at 100mph and even when going uphill rarely hit 10psi. You really have to be on the gas to be at boost in excess of 15psi. anything over that and you ARE speeding up... not maintaining cruise and certainly not the flow of traffic. Normal driving will NOT keep the R in upper boost levels.

I thought so, thank you Josh.

 

[Needsdecaf]

Re: How much BOOST to achive 450bhp (ArtVandelay0023)

Quote, originally posted by ArtVandelay0023 »

I think I may be slightly wrong on this. It's been a while since college. Doesn't more pressure = more energy , which coverts to heat?

Nope.

Boyle's law of gases (which is Chemistry, BTW, and not at a college level either) states that for any gas which is altered, the following equation prevails:

(P1 * V1)/T1 = (P2 * V2)/T2

That if a gas undergoes a change in any of the three variables, another variable must change to make the equation balance.

I'll use round numbers for a quick example.

If you change the pressure of a gas (such as an air fuel mixture) by double (say from 1 bar to 2 bar) P2 is going to equal 2 * P1. If the volume is constant, T2 must now equal 2 * T1 in order to balance the equation.

Of course, the volume does change, and there are other factors to consider such as change in phases (i.e. compressed propane is in the form of a liquid, where propane wants to be a gas at it's normal state. In order to change to a liquid, the temperature must be dropped).

[/Mr. Wizard Hat Off]

 

[BOOSTED S60R]

Mine blew up at 24 psi on the stock turbo at 362whp.

 

[GPollman]

first off Needsdecaf did you have to bust out the college physics book to quote boyle's law

second i am the one kelly mentioned is trying to route a second ram air on the passanger side, so far i think i may have something that will work i just need to get the tubing to try and place it in the most direct route with minimal bends. I have the vision and i know where i want to run the tube but working it is a different story

Modified by GPollman at 3:28 PM 5-23-2007

 

[R_Rated]

Re: (Needsdecaf)

Quote, originally posted by Needsdecaf »

I thought so, thank you Josh.

here is my gas mileage after 5 hours straight on the highway. I passed a few cars here and there so got into boost those times. I only flogged it a couple times. Of that 5 hours about 20 minutes was stop and go.

 

[R_Rated]

sorry for the cell phone camera quality.

 

[phuz]

Re: (R_Rated)

Quote, originally posted by R_Rated »

here is my gas mileage after 5 hours straight on the highway. I passed a few cars here and there so got into boost those times. I only flogged it a couple times. Of that 5 hours about 20 minutes was stop and go.

and thus proving that a properly tuned performance motor will get better gas mileage than a stock tune because it is able to make more power with slightly less fuel. see? your ECU upgrades pay for themselves!

thanks for the photo josh!