Specialist Components 964 kit - any real world experience?
01-14-2015, 04:45 AM
#46
01-15-2015, 05:08 PM
#48
Rennlist Member
Thread Starter
Base line Dyno run completed. Thanks to Racoguy we were able to do two sets of runs, one with the standard ECU and one with a Steve Wong chip.
These are baseline results and I don't want to get into a long discussion about a subject I know little about so I won't post the curve to initiate that however I can share the following:
1. The Steve Wong chip added 20kW power at the rear wheels
2. The AFR for both standard and Steve Wong chip are solid. The standard one is ~ 11.8:1 at 4,800 rpm plus whereas the Steve Wong Chip is 11.3:1. No danger of leaning out there.
These are baseline results and I don't want to get into a long discussion about a subject I know little about so I won't post the curve to initiate that however I can share the following:
1. The Steve Wong chip added 20kW power at the rear wheels
2. The AFR for both standard and Steve Wong chip are solid. The standard one is ~ 11.8:1 at 4,800 rpm plus whereas the Steve Wong Chip is 11.3:1. No danger of leaning out there.
01-15-2015, 05:12 PM
#49
Rennlist Member
01-15-2015, 06:06 PM
#52
Three Wheelin'
John,
Steve had told me that he tunes the afr to hit a constant 13.0-13.2 at WOT. Possibly your wot switch is not getting triggered? I'm having rich-mix problems and log mid 11's at wot in 3rd. With the wot switch disconnected, I got down to 11.2 and I could smell the rich exhaust even on the highway. Next on my checklist is to have the ecu tested, my cabrio definitely had some water leaks in its past.
My before/after Steve W chip set for 93 octane and stock exhaust only saw 6hp and 5ft-lbs at the wheels on a Mustang dyno. I'm guessing that your cup pipe allowed for the extra power and the Wong chip was just able to take advantage of it.
I'd love to see the dyno curves if you're willing to send a pm/email copy. Thanks for this info!
Steve had told me that he tunes the afr to hit a constant 13.0-13.2 at WOT. Possibly your wot switch is not getting triggered? I'm having rich-mix problems and log mid 11's at wot in 3rd. With the wot switch disconnected, I got down to 11.2 and I could smell the rich exhaust even on the highway. Next on my checklist is to have the ecu tested, my cabrio definitely had some water leaks in its past.
My before/after Steve W chip set for 93 octane and stock exhaust only saw 6hp and 5ft-lbs at the wheels on a Mustang dyno. I'm guessing that your cup pipe allowed for the extra power and the Wong chip was just able to take advantage of it.
I'd love to see the dyno curves if you're willing to send a pm/email copy. Thanks for this info!
01-16-2015, 01:27 AM
#53
Three Wheelin'
20 kw is a good estimation on stock engine as we got 156 rwkw with completely stock engine (including stock old cat) and switched to VEMS and after some tuning managed to get 172 rwkw.
CUP pipe and 200cpi cat would make it more and also stock injectors are pretty much maxxed even with stock engine...
CUP pipe and 200cpi cat would make it more and also stock injectors are pretty much maxxed even with stock engine...
01-16-2015, 01:31 AM
#54
Rennlist Member
Thread Starter
Install over. It took about 5 hours. Much of that was spent on the injectors. It started first time and idles as normal.
I only took it for a short drive around the block. It seems to be drivable with the supplied base map except it can't as yet cope with the LWF. I'll clean the ISV but I expect it needs a tweaking. I know it's possible as the Steve Wong chip solved that.
I only took it for a short drive around the block. It seems to be drivable with the supplied base map except it can't as yet cope with the LWF. I'll clean the ISV but I expect it needs a tweaking. I know it's possible as the Steve Wong chip solved that.
01-18-2015, 05:32 AM
#57
Burning Brakes
Join Date: Feb 2002
Location: London, England
Posts: 873
Likes: 0
Received 0 Likes
on
0 Posts
Well done John!
The SC kit is on my list. Sad to hear it doesn't handle LWF out of the box - the Wong chip comes programmed to do handle a standard dual mass or LWF so would think this could be built into the kit for the future?
I'm also trying to find out if I can maintain OBC functionality on the tach, as I like this feature...!
The SC kit is on my list. Sad to hear it doesn't handle LWF out of the box - the Wong chip comes programmed to do handle a standard dual mass or LWF so would think this could be built into the kit for the future?
I'm also trying to find out if I can maintain OBC functionality on the tach, as I like this feature...!
01-18-2015, 05:51 AM
#58
Rennlist Member
Thread Starter
Unfortunately I have no idea where to start with the LWF problem.
This was the response Steve Wong gave to another Rennlister about the LWF solution
With regards with the LWF, much research and testing has gone into finding the permanent solution to this problem that has plagued owners for years. The solution was finally solved by implementing part of the coding solution of the European RS, that came from the factory with the LWF, and also would stall without a special chip coding. The fact is with the chip I have that is modified for a standard 993 with a LWF, your car will idle no differently than if it were a European RS, with a slightly higher idle of +100 rpm, and should not stall unless you engine has other mechanical issues such as air leaks. So far it has worked well for everyone who has installed it, and was the only way they could fix their stalling even after trying all kinds of other proposed solutions of the past. If you still have any residual idle issues, taking the car to a Porsche service center with a Bosch hammer, PST2, or PIWIS tester and having a 5 minute idle adaptation performed should take care of any remaining calibration.
This was the response Steve Wong gave to another Rennlister about the LWF solution
With regards with the LWF, much research and testing has gone into finding the permanent solution to this problem that has plagued owners for years. The solution was finally solved by implementing part of the coding solution of the European RS, that came from the factory with the LWF, and also would stall without a special chip coding. The fact is with the chip I have that is modified for a standard 993 with a LWF, your car will idle no differently than if it were a European RS, with a slightly higher idle of +100 rpm, and should not stall unless you engine has other mechanical issues such as air leaks. So far it has worked well for everyone who has installed it, and was the only way they could fix their stalling even after trying all kinds of other proposed solutions of the past. If you still have any residual idle issues, taking the car to a Porsche service center with a Bosch hammer, PST2, or PIWIS tester and having a 5 minute idle adaptation performed should take care of any remaining calibration.
01-18-2015, 05:54 AM
#59
Rennlist Member
Thread Starter
First step I suppose is to download the Typhoon software and learn what it can do.
Fortunately I have just bought a Cayman R and have a DD while I sort this out
Fortunately I have just bought a Cayman R and have a DD while I sort this out
01-18-2015, 06:42 AM
#60
Burning Brakes
My understanding is that you will need to raise the idle slightly, but also kick in fueling earlier when the revs drop. I am not sure how this works or what map (is their an idle map?) but I believe you need to raise this value as well as the idle.