Drivetrain ALTA's GP meets the Unichip and gets 12WHP and 8ft-lbs
6th Gear
Joined: Mar 2006
Posts: 6,056
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From: Sacramento, CA
I've heard about as many people say that the JCW pulley is only around 11% reduction as say it's 14+% reduction. Since I've never seen 15 lbs boost - only 13 lbs max - it would make sense that it's only 11% (I don't claim to know exactly how much boost a given reduction pulley will make - just "eyeballing it" so to speak). In any case, yes, 15-16 lbs seems to be the norm for 15% pulleys, so that's what I'd like to get to. I'm not looking for giant boost numbers, just like to be at the same level as everyone else running a 15% pulley, as that seems to be the consensus of the ideal pulley size/boost level for a mildly modded street car.
Oh, and I'm only 100-200 feet above sea level, so I shouldn't be having altitude issues.
Oh, and I'm only 100-200 feet above sea level, so I shouldn't be having altitude issues.
Last edited by 70spop; Nov 21, 2007 at 11:32 AM.
Alta folk, would you have an off-the-shelf map that would play well with the following?
Also, are you able to raise the rev limit via the Unichip? I'm a little unclear on this. I would love to take it up to 7k.
Thanks and Happy Toikey Day!
- Full 05+ JCW kit (w intake, injectors)
- Opened JCW intake w Madness filter upgrade
- Resonator-less JCW exhaust
- GP IC
- 91 octane CA fuel
- Massive lead foot that regularly trips the reve limiter
Also, are you able to raise the rev limit via the Unichip? I'm a little unclear on this. I would love to take it up to 7k.
Thanks and Happy Toikey Day!
Alta folk, would you have an off-the-shelf map that would play well with the following?
Also, are you able to raise the rev limit via the Unichip? I'm a little unclear on this. I would love to take it up to 7k.
Thanks and Happy Toikey Day!
- Full 05+ JCW kit (w intake, injectors)
- Opened JCW intake w Madness filter upgrade
- Resonator-less JCW exhaust
- GP IC
- 91 octane CA fuel
- Massive lead foot that regularly trips the reve limiter
Also, are you able to raise the rev limit via the Unichip? I'm a little unclear on this. I would love to take it up to 7k.
Thanks and Happy Toikey Day!
Thank you for the interest in ALTA Performance!
Again, both Jeff and I are happy to answer the question with a bit more clarification. Thanks again and WELCOME TO NAM! I noticed the post count, so I feel privileged that you posted in our thread first!
Neutral
Joined: Nov 2007
Posts: 4
Likes: 0
I guess I don't understand the question. We only showed the gains the ALTA tune made from the GP mapping. But I believe the consensus was the results were higher than similar tunes from others.
Again, both Jeff and I are happy to answer the question with a bit more clarification. Thanks again and WELCOME TO NAM! I noticed the post count, so I feel privileged that you posted in our thread first!
Again, both Jeff and I are happy to answer the question with a bit more clarification. Thanks again and WELCOME TO NAM! I noticed the post count, so I feel privileged that you posted in our thread first!
Also, whose consensus are you consulting to verify higher gains?
I am looking for software for my R53 and I want to be sure I make the right choice the first time.
Boiler
Thread Starter
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Manufacturer
Joined: Dec 2002
Posts: 995
Likes: 0
From: Oregon
Hey, I totally agree. I'll be right up. 
Yeah, my boost gauge shows 11-12 lbs at wot if I'm near redline. Anything less, and I'm lucky to get in the 8-9 range. I used to see about 13 lbs at wot above 6,000 rpm. I've already got an ALTA V.1 15% pulley, and was going to have it installed a while back. The shop was having trouble removing the JCW pulley, however, and didn't feel that they could force it any more without damaging the input shaft/bearings, so they left the JCW part on. I have had both that shop (a BMW specialty shop that also is MINI certified) and the dealer go over my intake system looking for leaks and double-checking boots and bolts, but neither of them said they found any leaks or anything else wrong. Bypass valve seems to be working (judging by what I see with the boost gauge when I move the gas pedal). Not sure where my boost is going.
So, I've got the 15% pulley, just not on the car at the moment. I'd like to get the boost up to the 15-16 lb range.
Yeah, my boost gauge shows 11-12 lbs at wot if I'm near redline. Anything less, and I'm lucky to get in the 8-9 range. I used to see about 13 lbs at wot above 6,000 rpm. I've already got an ALTA V.1 15% pulley, and was going to have it installed a while back. The shop was having trouble removing the JCW pulley, however, and didn't feel that they could force it any more without damaging the input shaft/bearings, so they left the JCW part on. I have had both that shop (a BMW specialty shop that also is MINI certified) and the dealer go over my intake system looking for leaks and double-checking boots and bolts, but neither of them said they found any leaks or anything else wrong. Bypass valve seems to be working (judging by what I see with the boost gauge when I move the gas pedal). Not sure where my boost is going.So, I've got the 15% pulley, just not on the car at the moment. I'd like to get the boost up to the 15-16 lb range.
Low Boost
I've heard about as many people say that the JCW pulley is only around 11% reduction as say it's 14+% reduction. Since I've never seen 15 lbs boost - only 13 lbs max - it would make sense that it's only 11% (I don't claim to know exactly how much boost a given reduction pulley will make - just "eyeballing it" so to speak). In any case, yes, 15-16 lbs seems to be the norm for 15% pulleys, so that's what I'd like to get to. I'm not looking for giant boost numbers, just like to be at the same level as everyone else running a 15% pulley, as that seems to be the consensus of the ideal pulley size/boost level for a mildly modded street car.
Oh, and I'm only 100-200 feet above sea level, so I shouldn't be having altitude issues.
Oh, and I'm only 100-200 feet above sea level, so I shouldn't be having altitude issues.
Hope this helps
Neutral
Joined: Nov 2007
Posts: 4
Likes: 0
Maybe if you ventured out of your own threads you would see dyno graphs posted everywhere. Since you are so big about power what are your track times since those can't be fudged?
Also, could you please answer my question that you so conveniently passed over before. Post #33 in this thread
thank you
No Fear Gear
Joined: Aug 2005
Posts: 921
Likes: 0
From: Golden Central Coast Cali
Maybe if you ventured out of your own threads you would see dyno graphs posted everywhere. Since you are so big about power what are your track times since those can't be fudged?
Also, could you please answer my question that you so conveniently passed over before. Post #33 in this thread
thank you
Also, could you please answer my question that you so conveniently passed over before. Post #33 in this thread
thank you
Why don't you call them and talk about this instead of appearing to be short-sighted on this board.
ALTA has been around way longer than you have and are often found on many threads that are not their own.
Peace.
Maybe if you ventured out of your own threads you would see dyno graphs posted everywhere. Since you are so big about power what are your track times since those can't be fudged?
Also, could you please answer my question that you so conveniently passed over before. Post #33 in this thread
thank you
Also, could you please answer my question that you so conveniently passed over before. Post #33 in this thread
thank you
WHOA!!!! Sorry if you felt something got passed over. We do venture out into a LOT of threads. Seems like an adversarial comment, which you will see that ALTA is very willing answer questions, concerns, tech issues etc. Soooooooo what exactly do you need in terms of dyno results? Jeff or I can gladly share what you need. The non-GP results are VERY similar and Jeff has those as well to publish (or close to it.) The track is closed for the year up here and even if it was open the variables on track conditions, make it far harder to compare. The dyno is the best tool for repeatability.
If something was passed over MY apologies! But it was certainly NOT intentional.
If you want more info my contact info is below. Use it!
Thanks again for considering ALTA for your car! I take that as a compliment when clients choose MY products over others to spend their hard earned money on!
adam@altaminiperformance.com
503-222-MINI xt 110
Man, switch to Decaf Bro! I don't think ALTA is attempting to evade you at all.
Why don't you call them and talk about this instead of appearing to be short-sighted on this board.
ALTA has been around way longer than you have and are often found on many threads that are not their own.
Peace.
Why don't you call them and talk about this instead of appearing to be short-sighted on this board.
ALTA has been around way longer than you have and are often found on many threads that are not their own.
Peace.
Neutral
Joined: Nov 2006
Posts: 9
Likes: 0
I wish you guys could pass you knowledge to the Aussie tuners here. After big gains from my custom Unichip to start, 6 weeks later I am getting it ripped out tomorrow as the car is virtually undrivable. As soon as your foot goes further than a grannys would on the accelerator it dies! Spent hours on the dyno and they just cannot for the life of them get it working properly.
PS Have heaps of Alta stuff fitted to my car and love it!
PS Have heaps of Alta stuff fitted to my car and love it!
Thread Starter
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Manufacturer
Joined: Dec 2002
Posts: 995
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From: Oregon
This sounds like an issue with the DBW wires. Its sounds like the failsafe is kicking in. The Unichip doesn't mess with these wires, so it most likely isn't that. BUt if its programmed funny, then yes. Does it do this when its unplugged?
I am bumping this as several recent e-mails referenced the thread. Good information here for lots of folks considering an ECU upgrade for the R53 in JCW or non-JCW form. As always let me know if you need dyno results, or other information. Always happy to help!
5th Gear
Joined: Feb 2007
Posts: 658
Likes: 0
From: Denver, Colorado
Adam,
What about a high altitude tune? I live in Denver and I'd like to see something that's specific at 5280ft or higher any ideas? I'm not even sure something like altitude would affect a good tune.
What about a high altitude tune? I live in Denver and I'd like to see something that's specific at 5280ft or higher any ideas? I'm not even sure something like altitude would affect a good tune.
Last edited by tommy_zito; Jun 1, 2008 at 11:24 PM.
Let me know if you want me to pursue this further. Chat soon!
6th Gear
Joined: Aug 2005
Posts: 3,902
Likes: 2
From: SoCaL (Agoura Hills)
Here's a whole thread of tunes that people got and talked about the delta's on...
https://www.northamericanmotoring.co...d.php?t=137220
Uh... where have you been?
Here's a whole thread of tunes that people got and talked about the delta's on...
https://www.northamericanmotoring.co...d.php?t=137220
Here's a whole thread of tunes that people got and talked about the delta's on...
https://www.northamericanmotoring.co...d.php?t=137220
Hey rusty, did you notice that Jeff made that post before CHRISTMAS LAST YEAR!!!!!
Some of your graphs are from three weeks ago, one from november (might have been posted but....) and another the tail end of December 07. So a bit hard to poke fun at a guy who can't predict the future.
With that being said, we are super excited to see gains like that. Way to go Jan!
5th Gear
Joined: Feb 2007
Posts: 658
Likes: 0
From: Denver, Colorado
Heck yeah it can make a big difference. We don't have specific at altitude tunes perse, but I would like to hear from Jeff (ALTA2) as to if there are some known changes that could be added to your mapping. The low altitude maps would certainly work and be a major improvement, but one tuned at that height would be ideal.
Let me know if you want me to pursue this further. Chat soon!
Let me know if you want me to pursue this further. Chat soon!
Yeah i'd like to see how numbers would be changed at altitude. Being in Denver most of my fun driving are done on the twisty mountain roads. Let me know!!
-Tommy