stock mas limit finally found?
Sep 3, 2009, 09:22 PM
#61
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Thanks for the Info, Ill look for that thread!
Sep 3, 2009, 10:14 PM
#62
Why not toss in a Z06 MAF? They are 3.5 Inches in Diameter and can easilly flow over 1000WHP.
some of you may have been following my progress, I've recently dyno'd the car at 700awhp on a dynojet and with increases in boost from 38psi to 45psi, only lower rpm torque increases a little, not the high rpm horsepower, a sign that there is a choke point. Increasing timing also does not make a significant improvement.
I'm interested in going with SD or a MAF-T to answer the question once and for all, how much horsepower can you make on the stock MAS.
If someone has a MAF-T intake setup I could borrow I'd be willing to spend some time dialing the tune back in and seeing if it helps reduce the restriction enough to increase the horsepower. I figure that's the quickest way to get the answer and to see if SD experimentation on the stock ECU is worthwhile for a car at this level.
I'm interested in going with SD or a MAF-T to answer the question once and for all, how much horsepower can you make on the stock MAS.
If someone has a MAF-T intake setup I could borrow I'd be willing to spend some time dialing the tune back in and seeing if it helps reduce the restriction enough to increase the horsepower. I figure that's the quickest way to get the answer and to see if SD experimentation on the stock ECU is worthwhile for a car at this level.
Sep 3, 2009, 10:55 PM
#63
I have a FullThrottle MAF-T setup with the GM MAF, when I lived in SE texas with the mods in my sig I got 525HP 486TQ on the stock block, stock head, stock turbo 98pump 100% meth 28 PSI ( yes I know I am over running the stock turbo 
) on a dynapack.
When I lived there in the summer it was 105 deg 100% humidity heat index 115 deg / winter 30-40 deg rare snow a lot of ice elevation 20 feet below sea level. So I had 2 setups on my ECU map and MAF translator one winter and one summer.
In CA on 91oct I am getting 487HP 442TQ same setup new conditions. 20-60% humidity 95 deg summer and 60 deg winter. I now have one ecu and translator map for all seasons but I gained some numbers back on the ECU because it took less MID and HIGH settings on the translator to get my AFR's and timing where I liked them on the lower oct. gas. I think the lower humidity and my elevation is now 500-2000 ft above sea level is where this gain came from.
When I say gain I was getting the the edge of the cells 19.4 because of the effect of the translator on the ECU. Now I am back down into the 10-12 range on some cells that were 17-19 before.
The ONLY reason I used the MAF-T is I had the same setup on my Eclipse so I had some idea of what I was doing.
On my other evo I am about to try out SD so ill have a MAF-T vs SD setup at my hands. I have never been a stock MAF guy. I always question what conditions = the stock MAF limit as its just as prone to atmospheric conditions as the MAF-T setup IMO but you know the limit of the GM MAF when you start. So your all ready 1 step ahead of questionable anomalies of the "what is my stock MAF limit?"
) on a dynapack.When I lived there in the summer it was 105 deg 100% humidity heat index 115 deg / winter 30-40 deg rare snow a lot of ice elevation 20 feet below sea level. So I had 2 setups on my ECU map and MAF translator one winter and one summer.
In CA on 91oct I am getting 487HP 442TQ same setup new conditions. 20-60% humidity 95 deg summer and 60 deg winter. I now have one ecu and translator map for all seasons but I gained some numbers back on the ECU because it took less MID and HIGH settings on the translator to get my AFR's and timing where I liked them on the lower oct. gas. I think the lower humidity and my elevation is now 500-2000 ft above sea level is where this gain came from.
When I say gain I was getting the the edge of the cells 19.4 because of the effect of the translator on the ECU. Now I am back down into the 10-12 range on some cells that were 17-19 before.
The ONLY reason I used the MAF-T is I had the same setup on my Eclipse so I had some idea of what I was doing.
On my other evo I am about to try out SD so ill have a MAF-T vs SD setup at my hands. I have never been a stock MAF guy. I always question what conditions = the stock MAF limit as its just as prone to atmospheric conditions as the MAF-T setup IMO but you know the limit of the GM MAF when you start. So your all ready 1 step ahead of questionable anomalies of the "what is my stock MAF limit?"
Sep 4, 2009, 05:25 AM
#64
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the MAF-T sends a fixed temp to the ECU, that's my beef with it. The stock ecu sends the actual ambient temp so the ecu can make minor adjustments to keep the AFR where you left it.
Sep 4, 2009, 09:42 AM
#69
With this setup I clean up on Stock GTR's all day. There are about 4 GTR's in my area and I have whipped on strightline and in the canyons.
Its all in the meth
HEET FTW!!Anyways back on topic, I like my GG GSR MAF-T setup but cant wait to get into the SD stuff on my TB SE. In the end I think I am going to like SD more.
Sep 4, 2009, 01:08 PM
#72
Cool..
re-MAFT
MAFT Pro is only 399 plus sensors but it still has some of the bad habits the translator does. Even though you can use barometric correction and wire the IAT, it still has quirks that stock ECU speed density doesnt. There are tricks you can do with the Translator to make it work better, but as has been frequently pointed out its just not as cool as it seems.
Really though if your curve is dialed in the software, you can just use the Translator after that to make changes throughout the year as needed. The base adj, and the 4 trim adj go a long way in making it all happy.
re-MAFT
MAFT Pro is only 399 plus sensors but it still has some of the bad habits the translator does. Even though you can use barometric correction and wire the IAT, it still has quirks that stock ECU speed density doesnt. There are tricks you can do with the Translator to make it work better, but as has been frequently pointed out its just not as cool as it seems.
Really though if your curve is dialed in the software, you can just use the Translator after that to make changes throughout the year as needed. The base adj, and the 4 trim adj go a long way in making it all happy.
Sep 4, 2009, 01:12 PM
#73
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I have a FullThrottle MAF-T setup with the GM MAF, when I lived in SE texas with the mods in my sig I got 525HP 486TQ on the stock block, stock head, stock turbo 98pump 100% meth 28 PSI ( yes I know I am over running the stock turbo ) on a dynapack.
When I lived there in the summer it was 105 deg 100% humidity heat index 115 deg / winter 30-40 deg rare snow a lot of ice elevation 20 feet below sea level. So I had 2 setups on my ECU map and MAF translator one winter and one summer.
In CA on 91oct I am getting 487HP 442TQ same setup new conditions. 20-60% humidity 95 deg summer and 60 deg winter. I now have one ecu and translator map for all seasons but I gained some numbers back on the ECU because it took less MID and HIGH settings on the translator to get my AFR's and timing where I liked them on the lower oct. gas. I think the lower humidity and my elevation is now 500-2000 ft above sea level is where this gain came from.
When I say gain I was getting the the edge of the cells 19.4 because of the effect of the translator on the ECU. Now I am back down into the 10-12 range on some cells that were 17-19 before.
The ONLY reason I used the MAF-T is I had the same setup on my Eclipse so I had some idea of what I was doing.
On my other evo I am about to try out SD so ill have a MAF-T vs SD setup at my hands. I have never been a stock MAF guy. I always question what conditions = the stock MAF limit as its just as prone to atmospheric conditions as the MAF-T setup IMO but you know the limit of the GM MAF when you start. So your all ready 1 step ahead of questionable anomalies of the "what is my stock MAF limit?"
) on a dynapack.When I lived there in the summer it was 105 deg 100% humidity heat index 115 deg / winter 30-40 deg rare snow a lot of ice elevation 20 feet below sea level. So I had 2 setups on my ECU map and MAF translator one winter and one summer.
In CA on 91oct I am getting 487HP 442TQ same setup new conditions. 20-60% humidity 95 deg summer and 60 deg winter. I now have one ecu and translator map for all seasons but I gained some numbers back on the ECU because it took less MID and HIGH settings on the translator to get my AFR's and timing where I liked them on the lower oct. gas. I think the lower humidity and my elevation is now 500-2000 ft above sea level is where this gain came from.
When I say gain I was getting the the edge of the cells 19.4 because of the effect of the translator on the ECU. Now I am back down into the 10-12 range on some cells that were 17-19 before.
The ONLY reason I used the MAF-T is I had the same setup on my Eclipse so I had some idea of what I was doing.
On my other evo I am about to try out SD so ill have a MAF-T vs SD setup at my hands. I have never been a stock MAF guy. I always question what conditions = the stock MAF limit as its just as prone to atmospheric conditions as the MAF-T setup IMO but you know the limit of the GM MAF when you start. So your all ready 1 step ahead of questionable anomalies of the "what is my stock MAF limit?"
Sep 6, 2009, 12:17 AM
#75
^^^ Please post a graph ... It does sound to good to be true, especially on meth maybe on a 100% water. No one here has had the the ***** to test that but one lol and it didnt last long on a mustang dyno. So not calling BS just a little more info...
Respectfully,
Evan Smith
... It does sound to good to be true, especially on meth maybe on a 100% water. No one here has had the the ***** to test that but one lol and it didnt last long on a mustang dyno. So not calling BS just a little more info...Respectfully,
Evan Smith