Erg interessant topic voor mensen die zijn MCS wil tunen:
http://www.northamericanmotoring.com/fo ... hp?t=96586
ALTA MCS R56 tuning.
- Maaij
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- TomTom
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alta is een van de merken met de mooiste aftermarket spullen voor de mini. ze zijn ook erg groot in spullen voor de subaru's, dus gaat helemaal goedkomen met tuning voor de r56 cooper s.
overigens is beek dealer van alta spullen, scheelt hoop gekloot met bestellen en importkosten.
overigens is beek dealer van alta spullen, scheelt hoop gekloot met bestellen en importkosten.
- CooperS-lightningblue
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- Maaij
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Beek is sinds kort inderdaad dealer van Alta. Voor sommige mensen misschien interessant 
De luchtfilter komt over 3 weken zeggen ze:
Ik heb via mail al info gevraagd over het uitlaatsysteem van Alta. Als ik meer weet dan zet ik dat hier wel neer
De luchtfilter komt over 3 weken zeggen ze:
Ik heb via mail al info gevraagd over het uitlaatsysteem van Alta. Als ik meer weet dan zet ik dat hier wel neer
- Maaij
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Als de prijs goed is doen wij ook mee,de Milltek r53 vinden we 
, maar die ovale eindstukken voor de R56 
. Wordt de Alta een einddemper,catback of full system ?
Hoe verhouden zich de prijzen van milltek en alta over het algemeen ?
Wat zijn de gevolgen voor de fabrieksgarantie ?
, maar die ovale eindstukken voor de R56 . Wordt de Alta een einddemper,catback of full system ?Hoe verhouden zich de prijzen van milltek en alta over het algemeen ?
Wat zijn de gevolgen voor de fabrieksgarantie ?
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dat is allemaal nog onbekend, maar ik dénk alleen einddemper, prijs op niveau van militek en jan de jong doet niet moeilijk over garantie met alleen een ander uitlaatje (dénk ik 
) als je ziet dat mijn vorige one ook gewoon als mini next wordt aangeboden als het spul goed is zit het met garantie ook wel goed.
) als je ziet dat mijn vorige one ook gewoon als mini next wordt aangeboden als het spul goed is zit het met garantie ook wel goed.- Maaij
- King of the Groupbuy
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- Locatie: Venlo
- Maaij
- King of the Groupbuy
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Ik weet niet of jullie dit al hebben doorgelezen:
INTAKE SYSTEM TESTING BEGINS……….
Our initial test of the intake system was done with the OEM hood scoop left in place. Our intake is designed to remove this, but we wanted to prove how this was a necessary mod. So we did 3 quick runs with the scoop on and 4 quick runs with the scoop off. Below are the runs, with the strange low boost runs removed. The dyno’s runs are redrawn over with a wide brush to show the average of the 2 runs. With no scoop, the filter temps constantly climbed. In 3 quick (10 second interval) runs, the temps were at 150 degrees. With the scoop removed, an instant 30F drop occurred, and a constantly cooling temp change started. The next 3 quick runs showed a nice change in both temp and Wheel HP. The gain was somewhat expected, and the scoop needed to be removed to get the most from the intake system.
Above graph shows averaged runs with and with the scoop being blocked.
So where is the “complete” cold air intake?? The feasibility for a cold air intake is never out of the question, but the cost is the issue here. We wanted to bring the best bang for the buck to the plate first, not scare people away. Since our intake did so well in its form you see here we will continue with developing it this way. Plus we have some things up our sleeves to make it even better.
On a side note, when dealing with MAF (Mass Air Flow) sensors, small changes to turbulence in the intake system, can make huge changes to how the car runs. Because we are familiar with this problem on other cars, great care was taken to eliminate any turbulence issues that might throw a CEL, or make the car run too lean or rich. We can say for a fact that our intake replicates the stock MAF curve nearly perfectly!
Above graph shows averaged runs with and with the scoop opened up and intake installed!
Next up, the Cat-back exhaust….
For all these tests we started with the car being bone stock. So the OEM intake went back on. The catback exhaust is comprised of just that, an exhaust that starts after the cat(s). Yes there are 2 cats on these cars! This part is what we feel is going to be the most popular part to install, because of the sound and HP gains, and legality of it. The legality comes from the fact that it isn’t a part the CARB cares about, and it doesn’t mess with EPA issues. The only thing that the catback will have issues with is noise, and we will be far under any states maximum decibel level.
The ALTA 3” Catback is comprised of 3”OD,18g 304SS tubing, with V-band connections where needed. V- band connections provide a leak free, gasket less connection, that allows for rotation of the 2 joints. The look of the muffler section we wanted to keep similar to stock, but more beefy. With the larger round dual wall, twin tips, and polished can, I think we make it as perfect as we could. The sound of the catback is very mellow and not much louder than the OEM system. The OEM Exhaust is made from 2.166 or 55mm OD tubing, so needless to say, its small for a turbo car. So how do we connect the catback to the small OEM system? With a small adapter! Behind the last cat, you simply cut the exhaust, and slip our system on! Simple job anyone with a hack saw can do. With all these features at a reasonable price, it will be hard to beat what we are offering.
On to the test. Like our other parts, we did many runs to prove the gains were not a fluke. After our 7 or so runs we saw a great average gain of 10WHP and 10ft-lbs of torque above 4500 RPM. The only thing we plan on changing is the sound. In catback form, it is almost too quiet. So, a slight muffler change for a slightly louder sound and we are done. Because of how quite this is, look for 2 different versions one louder than the other.
Above graph shows averaged runs with the 3" ALTA catback installed.
TURBO BACK TIME!
Next up was the turbo back exhaust. The turbo back exhaust consists of the same basic parts as in the cat back, add a 3” mid section with CARB legal cat, and a downpipe with another CARB legal cat. The complete turbo back system is 3” everywhere, but the first 8” are 2.5” tubing to make the turbo connection and gain clearance around the header. One of the most important features is that the OEM heat shields fit over the downpipe. This we feel is very important as the turbo sits so close to the hood.
Onto the dyno test. Like the catback by itself adding the downpipe and midpipe netted very good gains. We gained more than 20WHP and 20ft-lbs which is awesome considering the car still runs the same boost levels during these runs. Besides the HP we gained during the runs, one thing we noticed was while the car was in its holding pattern on the dyno, it was getting 7psi of boost now, not the 4-5. This is also seen on the graphs by the huge 40ft-lbs gained at 2000 rpm! So another important thing to take note of! This would definitely be noticeable on the road at low rpm. Sure enough, on the freeway cruising around, we get nearly instant boost response.
We are setting the standard from which others will be judged from. Yes another company has an R56 exhaust out, but its 2.5” and they never did a before HP run. So they claim it makes 27HP because they made 202 at the engine, and since the stock car is supposed to make 175, it must make 27HP. Not very good proof IMHO.
Above graph shows averaged runs with the 3" ALTA Turboback installed.
Erg interessant stukje
INTAKE SYSTEM TESTING BEGINS……….
Our initial test of the intake system was done with the OEM hood scoop left in place. Our intake is designed to remove this, but we wanted to prove how this was a necessary mod. So we did 3 quick runs with the scoop on and 4 quick runs with the scoop off. Below are the runs, with the strange low boost runs removed. The dyno’s runs are redrawn over with a wide brush to show the average of the 2 runs. With no scoop, the filter temps constantly climbed. In 3 quick (10 second interval) runs, the temps were at 150 degrees. With the scoop removed, an instant 30F drop occurred, and a constantly cooling temp change started. The next 3 quick runs showed a nice change in both temp and Wheel HP. The gain was somewhat expected, and the scoop needed to be removed to get the most from the intake system.
Above graph shows averaged runs with and with the scoop being blocked.
So where is the “complete” cold air intake?? The feasibility for a cold air intake is never out of the question, but the cost is the issue here. We wanted to bring the best bang for the buck to the plate first, not scare people away. Since our intake did so well in its form you see here we will continue with developing it this way. Plus we have some things up our sleeves to make it even better.
On a side note, when dealing with MAF (Mass Air Flow) sensors, small changes to turbulence in the intake system, can make huge changes to how the car runs. Because we are familiar with this problem on other cars, great care was taken to eliminate any turbulence issues that might throw a CEL, or make the car run too lean or rich. We can say for a fact that our intake replicates the stock MAF curve nearly perfectly!
Above graph shows averaged runs with and with the scoop opened up and intake installed!
Next up, the Cat-back exhaust….
For all these tests we started with the car being bone stock. So the OEM intake went back on. The catback exhaust is comprised of just that, an exhaust that starts after the cat(s). Yes there are 2 cats on these cars! This part is what we feel is going to be the most popular part to install, because of the sound and HP gains, and legality of it. The legality comes from the fact that it isn’t a part the CARB cares about, and it doesn’t mess with EPA issues. The only thing that the catback will have issues with is noise, and we will be far under any states maximum decibel level.
The ALTA 3” Catback is comprised of 3”OD,18g 304SS tubing, with V-band connections where needed. V- band connections provide a leak free, gasket less connection, that allows for rotation of the 2 joints. The look of the muffler section we wanted to keep similar to stock, but more beefy. With the larger round dual wall, twin tips, and polished can, I think we make it as perfect as we could. The sound of the catback is very mellow and not much louder than the OEM system. The OEM Exhaust is made from 2.166 or 55mm OD tubing, so needless to say, its small for a turbo car. So how do we connect the catback to the small OEM system? With a small adapter! Behind the last cat, you simply cut the exhaust, and slip our system on! Simple job anyone with a hack saw can do. With all these features at a reasonable price, it will be hard to beat what we are offering.
On to the test. Like our other parts, we did many runs to prove the gains were not a fluke. After our 7 or so runs we saw a great average gain of 10WHP and 10ft-lbs of torque above 4500 RPM. The only thing we plan on changing is the sound. In catback form, it is almost too quiet. So, a slight muffler change for a slightly louder sound and we are done. Because of how quite this is, look for 2 different versions one louder than the other.
Above graph shows averaged runs with the 3" ALTA catback installed.
TURBO BACK TIME!
Next up was the turbo back exhaust. The turbo back exhaust consists of the same basic parts as in the cat back, add a 3” mid section with CARB legal cat, and a downpipe with another CARB legal cat. The complete turbo back system is 3” everywhere, but the first 8” are 2.5” tubing to make the turbo connection and gain clearance around the header. One of the most important features is that the OEM heat shields fit over the downpipe. This we feel is very important as the turbo sits so close to the hood.
Onto the dyno test. Like the catback by itself adding the downpipe and midpipe netted very good gains. We gained more than 20WHP and 20ft-lbs which is awesome considering the car still runs the same boost levels during these runs. Besides the HP we gained during the runs, one thing we noticed was while the car was in its holding pattern on the dyno, it was getting 7psi of boost now, not the 4-5. This is also seen on the graphs by the huge 40ft-lbs gained at 2000 rpm! So another important thing to take note of! This would definitely be noticeable on the road at low rpm. Sure enough, on the freeway cruising around, we get nearly instant boost response.
We are setting the standard from which others will be judged from. Yes another company has an R56 exhaust out, but its 2.5” and they never did a before HP run. So they claim it makes 27HP because they made 202 at the engine, and since the stock car is supposed to make 175, it must make 27HP. Not very good proof IMHO.
Above graph shows averaged runs with the 3" ALTA Turboback installed.
Erg interessant stukje
- Maaij
- King of the Groupbuy
- Contacteer:
- Locatie: Venlo
- 320d touring
- BBQ hulpkok
- Locatie: ergens tussen Utrecht en Den Bosch
Bericht
Praten ze hier nu over de hoodscoop, of zoals ik het lees over een plaat voor de intercooler die lucht ook naar het bovenste gedeelte van de intercooler geleid wat achter de bumper schuil gaat ?
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