MRC Does it again.673 whp!
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Join Date: Aug 2005
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MRC Does it again.673 whp!
Here is a close to final tune of the APS TT beast.Our set up:
APS TT kit (base kit)
CJM return fuel system
720cc injectors
CP 8.5:1 pistons
Pauter rods
ARP fasteners
OEM headgaskets
Ferrea valve train (stock size)
full race port and polish of heads and intake runners by Headgames
3.5" down pipes
3" exhaust
UTEC
APS plenum
OEM block (non sleeved)
Here is the conditions;
Outside temp : 89.2
Humidity: 51%
Baromiter: 23.9
Intake temp: 89.8
Dyno dynamics corrected to read Dyno Jet #'s 1.13
Atmospheric correction applied
Sunoco 93 octane gas
And the verdict....673whp at 12psi of boost pressure.....We were simply amazed and did not believe our own numbers, we did like 8 dyno runs and changed the Atmospheric corrections each time and made little difference.The Intake temp probe was in front of the intercooler for some pulls and some pulls we put it on the floor to eliminate the fudge factor of overcoorecting the intake temp when it touches a hot surface..
We feel the numbers are very accurate, since we did 490 with this car before the heads and cams and exhaust, and just minutes before we did a stock block APS TT kit at 398-408whp variances.
This week we will tune for some 108 or 112 octane fuel and also do some comaprative dynos on a local Dyno jet just to shut all the doubters down. We plan on being over 700whp uncontested and undisputed, with all the supporting evidence to thwart off the Trolls..lol
APS TT kit (base kit)
CJM return fuel system
720cc injectors
CP 8.5:1 pistons
Pauter rods
ARP fasteners
OEM headgaskets
Ferrea valve train (stock size)
full race port and polish of heads and intake runners by Headgames
3.5" down pipes
3" exhaust
UTEC
APS plenum
OEM block (non sleeved)
Here is the conditions;
Outside temp : 89.2
Humidity: 51%
Baromiter: 23.9
Intake temp: 89.8
Dyno dynamics corrected to read Dyno Jet #'s 1.13
Atmospheric correction applied
Sunoco 93 octane gas
And the verdict....673whp at 12psi of boost pressure.....We were simply amazed and did not believe our own numbers, we did like 8 dyno runs and changed the Atmospheric corrections each time and made little difference.The Intake temp probe was in front of the intercooler for some pulls and some pulls we put it on the floor to eliminate the fudge factor of overcoorecting the intake temp when it touches a hot surface..
We feel the numbers are very accurate, since we did 490 with this car before the heads and cams and exhaust, and just minutes before we did a stock block APS TT kit at 398-408whp variances.
This week we will tune for some 108 or 112 octane fuel and also do some comaprative dynos on a local Dyno jet just to shut all the doubters down. We plan on being over 700whp uncontested and undisputed, with all the supporting evidence to thwart off the Trolls..lol
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Originally Posted by Serengettisandg
Was the dyno used one where the wheels are removed or where you spinning rollers? I am very impressed with the numbers. Could you PM me some more info on price and such and also how much timing was run with 12psi. Thanks
Give me a call in the shop on the 5th for a quote.
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#15
Originally Posted by MRC Motorsports
No this was a wheels on roller dyno. Actually a load based Dyno Dynamics Dyno to be exact.
Give me a call in the shop on the 5th for a quote.
Give me a call in the shop on the 5th for a quote.