Drivetrain GT28RS Project
I have not looked into it yet. I was waiting for the next dyno time and see where we are at before doing anything else.
Time is a hard thing. I have work, family which are two young kids and three project's, which one just finished. Two more to finish and hopfully the mini should finish very soon with this last bug.
Time is a hard thing. I have work, family which are two young kids and three project's, which one just finished. Two more to finish and hopfully the mini should finish very soon with this last bug.
Dunno bout low pressure pump, but someone in England has 200 bar HPFP's...and upgraded injectors to go along with it........
Sorry, i have had not time to work on the Mini this week. I will probably get to it next week and dyno following week after driving it for additional week, to make sure there is no other bugs before going to the dyno again.
just an update, we started working on the car again today and updated some minor stuff, but we were not able to gix the issue that we had. Still working, but extremly slow.
Will keep you guys posted. The only thing left to fix now is some issue with the boost. The car comes on boost very fast up to 8-9 pounds and stays there until 4700 RPM then jumps to 19 pounds. Once i fix this issue, we are set to go back to the dyno and get it tunned perfectly.
Will keep you guys posted. The only thing left to fix now is some issue with the boost. The car comes on boost very fast up to 8-9 pounds and stays there until 4700 RPM then jumps to 19 pounds. Once i fix this issue, we are set to go back to the dyno and get it tunned perfectly.
Im having that problem with my ko3 i have a catless downpipe alta boost tube intake front mount and i took that stupid noise maker off and now the throttle closes at around 5 1/2 rpm range wtf is it dealer wants me to put everything back to stock fml.
just an update, we started working on the car again today and updated some minor stuff, but we were not able to gix the issue that we had. Still working, but extremly slow.
Will keep you guys posted. The only thing left to fix now is some issue with the boost. The car comes on boost very fast up to 8-9 pounds and stays there until 4700 RPM then jumps to 19 pounds. Once i fix this issue, we are set to go back to the dyno and get it tunned perfectly.
Will keep you guys posted. The only thing left to fix now is some issue with the boost. The car comes on boost very fast up to 8-9 pounds and stays there until 4700 RPM then jumps to 19 pounds. Once i fix this issue, we are set to go back to the dyno and get it tunned perfectly.
In any case, I wanted to do this to my car, so I hope it turns out well!
I just wanted to start a new thread and update everyone on my ongoing project. We are still working on some small details and in process of tuning as well. Once we have completed everything. I will post up some video of the dyno and the specific specs. I also wanted to let everyone know, once I have completed this project, we are going to be sale this kit and installation if anyone is interested. We have put lots of time in this project to make it work and it looks like we will be getting very close to 300 WHP.
I will start taking names for now and probably by next two weeks I should have it finished.
I will start taking names for now and probably by next two weeks I should have it finished.
I'm heading to the Dyno tomorrow. I'm having a hell of a time getting over 220whp (mustang dyno). I have the Alta Billet 56 turbo + stage 3. Tomorrow I expect to see 220-230hp and 260-270 wtq. I have an 09 Factory JCW. If you are REALLY seeing close to 300hp at the wheels then I'm in for the kit. I would do the install. I assume you have a tune that works with the Alta Accessport??
Ray
I'm heading to the Dyno tomorrow. I'm having a hell of a time getting over 220whp (mustang dyno). I have the Alta Billet 56 turbo + stage 3. Tomorrow I expect to see 220-230hp and 260-270 wtq. I have an 09 Factory JCW. If you are REALLY seeing close to 300hp at the wheels then I'm in for the kit. I would do the install. I assume you have a tune that works with the Alta Accessport??
Ray
Ray
Your stock JCW should be able to get above that with just a Stage 3 tune, FMIC, exhaust.
My S with JCW turbo is above that....
Mike wrote:
Hello there, i have not been on this forum for a while. The last time, we did the dyno was at 298 and i had the car for about 6 months. the boost starts around 3000 rpm and it's on full boost around 3250-3350 and pull hard all the way.
I have been pulled over so many times, on my car where i leave, that i just pulled the plug and decided to take all the modification out and go back to stock, as i had to go to a referry on two different ocasions. It's a hassel to put everything on and then back.
I have dark tint on my windows and the car attracts alot of attention with the looks.
If any one is interested let me know.
Custom 3" Huss Power exhaust with the GT28Rs kit and lot more custom work we had to do.
RMS in Van Nuys, CA did all the work and all the tune with Jeff at Alta.
I would say to anyone that want's a rocket to this project, but it is not cheap if you are going to buy new and have someone to do it. I have already gone through this process, as i was the first one in 2009 trying to figure all this out. We are talking $$$$
Anyway GT28Rs and the entire kit is available. Note, be ready for a clutch soon as well.
Hello there, i have not been on this forum for a while. The last time, we did the dyno was at 298 and i had the car for about 6 months. the boost starts around 3000 rpm and it's on full boost around 3250-3350 and pull hard all the way.
I have been pulled over so many times, on my car where i leave, that i just pulled the plug and decided to take all the modification out and go back to stock, as i had to go to a referry on two different ocasions. It's a hassel to put everything on and then back.
I have dark tint on my windows and the car attracts alot of attention with the looks.
If any one is interested let me know.
Custom 3" Huss Power exhaust with the GT28Rs kit and lot more custom work we had to do.
RMS in Van Nuys, CA did all the work and all the tune with Jeff at Alta.
I would say to anyone that want's a rocket to this project, but it is not cheap if you are going to buy new and have someone to do it. I have already gone through this process, as i was the first one in 2009 trying to figure all this out. We are talking $$$$
Anyway GT28Rs and the entire kit is available. Note, be ready for a clutch soon as well.
I'm heading to the Dyno tomorrow. I'm having a hell of a time getting over 220whp (mustang dyno). I have the Alta Billet 56 turbo + stage 3. Tomorrow I expect to see 220-230hp and 260-270 wtq. I have an 09 Factory JCW. If you are REALLY seeing close to 300hp at the wheels then I'm in for the kit. I would do the install. I assume you have a tune that works with the Alta Accessport??
Ray
Ray
Just got back from Portland, OR and a dyno tune by Cobb and Alta. One of my charts is posted on their web site --- http://accessecu.com/dyno/
Fill in the blanks to see the chart. Mine was the only Mini on the site.
I posted my "diary / log" on one other thread, but I'll include it here too. Those interested in this turbo upgrade should proceed cautiously, it's expensive and causes lots of grief, but it definitely can be done, and it's one hell of a thrill when you punch it!
OldBrokenWind's log : diary updated.pdf
Fill in the blanks to see the chart. Mine was the only Mini on the site.
I posted my "diary / log" on one other thread, but I'll include it here too. Those interested in this turbo upgrade should proceed cautiously, it's expensive and causes lots of grief, but it definitely can be done, and it's one hell of a thrill when you punch it!
OldBrokenWind's log : diary updated.pdf
Last edited by oldbrokenwind; May 8, 2011 at 05:12 PM. Reason: wrong attachment
Just returned from Portland, OR where my car was dyno tuned at Cobb / Surgeline by Tim M, also Jeff P of Alta. One of the charts can be seen at http://accessecu.com/dyno/ My Mini was the only one in the database, so filling in the database request form should be easy.
The upgrades are all documented in the diary / log attached. For those of you that have already seen it, there is a page or so added with updates. As empire0007 says, it's expensive to go with a Garrett. I'm working with both Cobb and Alta, and doubt if much more can be squeezed out of my current upgrades. But the kick from driving this thing around town is something else!
OldBrokenWind's log : diary updated.pdf
The upgrades are all documented in the diary / log attached. For those of you that have already seen it, there is a page or so added with updates. As empire0007 says, it's expensive to go with a Garrett. I'm working with both Cobb and Alta, and doubt if much more can be squeezed out of my current upgrades. But the kick from driving this thing around town is something else!
OldBrokenWind's log : diary updated.pdf
I am thinking about starting this project with the GT28rs turbo. I have a factory 09 JCW with a modified Alta turbo. I thought I would chime in about boost pressures since I know the MCS has problems above 20psi. My boost peaks just over 27 with no problems except rapid acceleration, a little torque steer, and/or wheel spin.
I had problem a few weeks ago and found out the spark plugs were gapped around 0.030" Jeff suggested I go under .020" I set them at .018" and haven't a problem since.
Ray
I had problem a few weeks ago and found out the spark plugs were gapped around 0.030" Jeff suggested I go under .020" I set them at .018" and haven't a problem since. Ray
Best of luck to you with that....you're going to need it
It will blow...I will bet $ on it too.
As far as internal upgrades, you will have to go custom. Find a reputable engine builder, discuss goals, and you will have yourself a decent motor. Same with the head...find someone that knows what they're doing and it'll work out great. Nothing has been mass produced due to cost.
I know who I'd go with...
24psi stock? Do you have scan gauge or ultra gauge or some odb ii reader for your boost? Sounds like you're reading map pressures, which include atmospheric. Seeing that normal atmospheric is around 14.xx, that means you see around 10 psi at stock, which is normal for an S but a little low for jcw.. What's your altitude?
With the tune you see 27, which would b about 13psi, which sounds low...?
I can't imagine you're only seeing 3 more psi over stock
Hi Thumper- Yeah that's what me and the guys at the shop think too.
I don't race it. I talked to the guys at ABF. Thinking about a bigger turbo and less boost.
SooperCuperErik,
Yes factory stock will peak over 24psi. This was measured with dyno, a gauge, and recorded with the access port. On the dyno saturday it peaked at 27.3. Yesterday I saw 28. Before the stage 3 tune most of the time when I punch it I would see 13-15 psi. And when running through the gears it would briefly hit 24 then drop quickly to 18 or so. Now with the modified turbo & Alta Stage 3 when I punch it the boost rises to 27 or so and will drop off to 22 or so by redline.
So when I punch say at 65 mph in 6th I see 10 psi more then what I saw stock. And yes it very quick. And Jeff at Alta says the data looks good too.
Ray
I don't race it. I talked to the guys at ABF. Thinking about a bigger turbo and less boost.SooperCuperErik,
Yes factory stock will peak over 24psi. This was measured with dyno, a gauge, and recorded with the access port. On the dyno saturday it peaked at 27.3. Yesterday I saw 28. Before the stage 3 tune most of the time when I punch it I would see 13-15 psi. And when running through the gears it would briefly hit 24 then drop quickly to 18 or so. Now with the modified turbo & Alta Stage 3 when I punch it the boost rises to 27 or so and will drop off to 22 or so by redline.
So when I punch say at 65 mph in 6th I see 10 psi more then what I saw stock. And yes it very quick. And Jeff at Alta says the data looks good too.
Ray
But yes, less boost would be wise...
Yes but peak HP is about the same 220. It does have more HP at higher rpm. Saturday it dyno'd at 217hp & 266 tq. I'm hoping to get it in the upper 200's close to 300. I'm talking with someone who built an 09 JCW with a GT28RS. He says he got 298 at 19psi. Stock bottom end.
Yes but peak HP is about the same 220. It does have more HP at higher rpm. Saturday it dyno'd at 217hp & 266 tq. I'm hoping to get it in the upper 200's close to 300. I'm talking with someone who built an 09 JCW with a GT28RS. He says he got 298 at 19psi. Stock bottom end.

There are tuned JCW's with only and FMIC and exhaust running 300+ ft-lbs to the wheels and around 240whp...
Agreed- The numbers look off. Everyone thinks this dyno is off. We were considering try another place. One off guys tested his 2010 Challenger. At the crank it's 375. On the dyno it was 301. Last time my other guys 08 350Z dyno'd 244. 306 at the crank. Seems like all the numbers are off.
I am thinking about starting this project with the GT28rs turbo. I have a factory 09 JCW with a modified Alta turbo. I thought I would chime in about boost pressures since I know the MCS has problems above 20psi. My boost peaks just over 27 with no problems except rapid acceleration, a little torque steer, and/or wheel spin.
I had problem a few weeks ago and found out the spark plugs were gapped around 0.030" Jeff suggested I go under .020" I set them at .018" and haven't a problem since.
Ray
I had problem a few weeks ago and found out the spark plugs were gapped around 0.030" Jeff suggested I go under .020" I set them at .018" and haven't a problem since. Ray
Would you tell us what the "engine off" pressure is?



