Pure Tuning Evo IX Cosworth Cams Dyno Test
Oct 19, 2007, 07:45 AM
#46
4_Wheel_Slide quote:
idk, i really do want to believe that the cosworth make a solid 30whp, im just having such a hard time believing it....
its liek the green turbo... it was marketed to run 10's.... and there are what 5 people doing it and they all have aem and all kinds of extra garbage int he car...
it would have been cheaper to get a 3065r kit for 3k and stick with the stock ecu and run 10's on pump gas.....
__________________
A couple of corrections: First of all, OKIX only TESTED his whp/wtq on the Buschur Dyno, it wasn't even tuned in any way, shape or form on the Buschur Dyno.
Secondly, it DOES NOT have an AEM, it's stock ecu, stock maf.
It was tuned by me, using ecuflash. It's a FP-Green, and it made 425 whp/ 481 wtq on DB's dyno. The et and mph recently run is the ONLY VIII or IX currently running in the 10's. (Curt's car ran 10.58, no long running 20G-Lt, Davids car ran 10.89 no longer has 20G-LT, Dadriva ran 10.92 no longer uses 20G-LT, OKIX car ran 10.87 with quickest et and MPH recorded for the 20G-LT on a IX and will soon be using an VIII 4th gear). Just wanted to keep facts straight, that's how misinformation gets started to the newbies. If someone else is running 10's, I'd like to know who, where and when.
idk, i really do want to believe that the cosworth make a solid 30whp, im just having such a hard time believing it....
its liek the green turbo... it was marketed to run 10's.... and there are what 5 people doing it and they all have aem and all kinds of extra garbage int he car...
it would have been cheaper to get a 3065r kit for 3k and stick with the stock ecu and run 10's on pump gas.....
__________________
I know what you mean. not to knock the green, but every fast car is basically a member of the bushur camp. They are all from around there and go on his dyno and I'm sure they all tweak their setup constantly to get every last MPH out of it.
With that being said, its still pretty impressive.
With that being said, its still pretty impressive.
Secondly, it DOES NOT have an AEM, it's stock ecu, stock maf.
It was tuned by me, using ecuflash. It's a FP-Green, and it made 425 whp/ 481 wtq on DB's dyno. The et and mph recently run is the ONLY VIII or IX currently running in the 10's. (Curt's car ran 10.58, no long running 20G-Lt, Davids car ran 10.89 no longer has 20G-LT, Dadriva ran 10.92 no longer uses 20G-LT, OKIX car ran 10.87 with quickest et and MPH recorded for the 20G-LT on a IX and will soon be using an VIII 4th gear). Just wanted to keep facts straight, that's how misinformation gets started to the newbies. If someone else is running 10's, I'd like to know who, where and when.
Oct 19, 2007, 08:05 AM
#48
We use HKS 272's on the OKIX car. Idle is fine. My car uses the Cosi's and it's idle is fine. Half of the fun of having a performance car is the sound of loping cams. I am considering doing back to back comparisons on the OKIX car. HKS 272 vs Cosi, on the dyno.
Oct 19, 2007, 08:10 AM
#49
Oct 19, 2007, 08:14 AM
#50
Just got off the phone with Jarrod at Buschurs. Since we have a baseline already on their dyno with the HKS 272's, I think I'm going to have DB put a set of Cosi's in the OKIX car and see what the difference is. Only problem with this test is that we're having the head slightly ported, not full allout Stage III head. Also, using SS stock size valves. The head flow would be slightly better, but it would still indicate if the cams allow more power to be made. Also, might be good to compare the low rpm torque differences.
Oct 19, 2007, 01:18 PM
#53
More power everywhere..... that is impressive.... But I would like more information.
Please post an after cam without tune chart.
OR
After cam ... but ... before and after tune comparison. It would be nice to see what kind of HP improvements were made from the new tune. Care to leak what area's of the tune needed to be adjusted after the cams?
Please post an after cam without tune chart.
OR
After cam ... but ... before and after tune comparison. It would be nice to see what kind of HP improvements were made from the new tune. Care to leak what area's of the tune needed to be adjusted after the cams?
Oct 20, 2007, 07:25 AM
#55
More power everywhere..... that is impressive.... But I would like more information.
Please post an after cam without tune chart.
OR
After cam ... but ... before and after tune comparison. It would be nice to see what kind of HP improvements were made from the new tune. Care to leak what area's of the tune needed to be adjusted after the cams?
Please post an after cam without tune chart.
OR
After cam ... but ... before and after tune comparison. It would be nice to see what kind of HP improvements were made from the new tune. Care to leak what area's of the tune needed to be adjusted after the cams?
Then they go back through a simulation to verify partial throttle and cruising.
Oct 20, 2007, 10:59 AM
#57
There really isn't a full curve that we can show untuned. We never change a part like this and just run the car through to redline on the first pass. Cars go through a vehicle simulation program to get the A/Fs within a reasonable margin and then the hp pulls begin gradually turning up rpm stop speed on the dyno till we get to redline.
Then they go back through a simulation to verify partial throttle and cruising.
Then they go back through a simulation to verify partial throttle and cruising.
Oct 22, 2007, 08:07 AM
#59
Boost dropped 10psi @ 3500rpm from the addition of cams alone?
Strange.
I don't want to sound like a punk because I really don't know how well these cams work. But showing gains from start to finish is a very suspect result. If you could explain what areas needed fine tuning that would be nice. It has been said that the upper mivec table needs to be reduced and I would think boost would have to be raised a tad. But... the turbo runs out of air with stock cams so it hard to believe that minimal top end airflow could account for those gains. Lastly theres only soo much you can do with timing. You shouldn't be able to increase timing 4* simply because of cams. I'm just curious. I want you to convince me that this car didn't have other issues prior to cams. Example: a boost leak that was corrected during the swap. To me the second (after) curve looks alot like more boost but you said both tests were done at 23psi.
Strange.
I don't want to sound like a punk because I really don't know how well these cams work. But showing gains from start to finish is a very suspect result. If you could explain what areas needed fine tuning that would be nice. It has been said that the upper mivec table needs to be reduced and I would think boost would have to be raised a tad. But... the turbo runs out of air with stock cams so it hard to believe that minimal top end airflow could account for those gains. Lastly theres only soo much you can do with timing. You shouldn't be able to increase timing 4* simply because of cams. I'm just curious. I want you to convince me that this car didn't have other issues prior to cams. Example: a boost leak that was corrected during the swap. To me the second (after) curve looks alot like more boost but you said both tests were done at 23psi.
Last edited by Jeff_Jeske; Oct 22, 2007 at 08:21 AM.
Oct 22, 2007, 09:04 AM
#60
Former Vendor
Thread Starter
iTrader: (4)
Join Date: Sep 2005
Location: Toledo, Ohio
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
Boost dropped 10psi @ 3500rpm from the addition of cams alone?
Strange.
I don't want to sound like a punk because I really don't know how well these cams work. But showing gains from start to finish is a very suspect result. If you could explain what areas needed fine tuning that would be nice. It has been said that the upper mivec table needs to be reduced and I would think boost would have to be raised a tad. But... the turbo runs out of air with stock cams so it hard to believe that minimal top end airflow could account for those gains. Lastly theres only soo much you can do with timing. You shouldn't be able to increase timing 4* simply because of cams. I'm just curious. I want you to convince me that this car didn't have other issues prior to cams. Example: a boost leak that was corrected during the swap. To me the second (after) curve looks alot like more boost but you said both tests were done at 23psi.
Strange.
I don't want to sound like a punk because I really don't know how well these cams work. But showing gains from start to finish is a very suspect result. If you could explain what areas needed fine tuning that would be nice. It has been said that the upper mivec table needs to be reduced and I would think boost would have to be raised a tad. But... the turbo runs out of air with stock cams so it hard to believe that minimal top end airflow could account for those gains. Lastly theres only soo much you can do with timing. You shouldn't be able to increase timing 4* simply because of cams. I'm just curious. I want you to convince me that this car didn't have other issues prior to cams. Example: a boost leak that was corrected during the swap. To me the second (after) curve looks alot like more boost but you said both tests were done at 23psi.
Without going into specifics of the tune, the only changes were fuel and cam angle. The ignition timing map was not changed between the before and after to keep it fair. The car was tuned before and after to the same AF.
Both tests on the first page were done at 23 psi, what is shown above is the first WOT run with the boost turned down not the final result that is shown on the first page. The above graph is the means to the end result. Below are the same graphs with the boost plotted. I hope this helps convince you.
- Aaron
