My A-Spec 500R Kit Dyno Charts - Page 2

classicauto · 10-27-2008, 01:45 PM

Porting on the engine?

Exhaust size/configuration? (any cats?)

TurboSquirrel · 10-27-2008, 02:07 PM

Quote:

Originally Posted by classicauto

Porting on the engine?

Exhaust size/configuration? (any cats?)

Engine is Street Ported with 3mm Apex Seals.

DP & MP are 3" (OD) with a Greddy EVO "Grapefruit Shooter" Exhaust that's 3.5" (OD) and no Cat...

- Kevin

Phoenix7 · 10-27-2008, 10:25 PM

good to know

dregg100 · 10-28-2008, 08:47 AM

have you tried changing the dip switches to the "other" settings that greddy says to do if you are having problems? its on there website.

TurboSquirrel · 10-28-2008, 11:46 AM

Thanks for everyone's suggestions so far!

After doing some logging this morning, here are my results after adjusting the GAIN setting on the EBC. Also, David suggested seeing how it did running off the WG only and I have included that result as well.

There are three charts attached. The vertical line is the point where my expected max boost was obtained.

Each run is in 3rd Gear from around 3000rpm

(1) Chart_WGonly.JPG: EBC off (.9 BAR Spring)
(2) Chart_EBC_HighGain.JPG: EBC on, and the GAIN setting high (overboosted)
(3) Chart_EBC_Current.JPG: EBC on, and GAIN adjusted to desired boost

After adjusting the GAIN settings, the best spoolup achieved was around 5300rpm. Running on the WG only did not appear to improve spoolup.

Barry Bordes · 12-03-2008, 08:25 AM

Quote:

Originally Posted by TurboSquirrel

Thanks for everyone's suggestions so far!

After doing some logging this morning, here are my results after adjusting the GAIN setting on the EBC. Also, David suggested seeing how it did running off the WG only and I have included that result as well.

There are three charts attached. The vertical line is the point where my expected max boost was obtained.

Each run is in 3rd Gear from around 3000rpm

(1) Chart_WGonly.JPG: EBC off (.9 BAR Spring)
(2) Chart_EBC_HighGain.JPG: EBC on, and the GAIN setting high (overboosted)
Imag/attachmentid=3060&stc=1&thumb=1&d=1225212318/imag

(3) Chart_EBC_Current.JPG: EBC on, and GAIN adjusted to desired boost

After adjusting the GAIN settings, the best spoolup achieved was around 5300rpm. Running on the WG only did not appear to improve spoolup.

As a side note:
If you look at the above maps your knock level going into boost is higher than I am comfortable with. I would take a little timing out. On later maps you seem to have dropped the leading timing to 15º from 19º.
Barry

afterburn27 · 10-28-2008, 12:29 PM

Wow, that is pretty poor response from an 0.84 A/R housing. I would expect 15 psi closer to 4k RPM.

Your setup seems correct to me. Someone already mentioned it, but check to make sure you have the correct settings on your dip switches.

I would also expect better response off the wastegate alone, meaning that your EBC setup might not be a factor. Are you sure that you don't have any exhaust leaks on either side of the manifold? I had a friend with a similar situation and once he fixed his exhaust leak he was spooling 500+ RPM earlier than before. It was tricky too because you couldn't hear it at idle or cruise. It was really only leaking under boost and he had an open wastegate so there was no way to verify the leak until it started leaving carbon deposits under the manifold.

David Jerome · 10-28-2008, 03:22 PM

Im pretty sure Kevin doesnt have any leaks between the engine/manifold, wastegate/manifold, or turbo/manifold.

His response in 3rd gear is actually better than the only other person who has given me info about this kit. Its not impossible that there is a leak but everything on this car is brand new.

Trout2 · 11-05-2008, 10:36 PM

Did you guys make sure the flanges on the manifold were flat?

Jack

sk8world · 11-05-2008, 11:48 PM

I just dont think it could be the A-spec mani as thats the same mani I run but on a larger turbo (4094). I was seeing full boost around 4750 on my past setup (BDC streetport/ 3 inch exhaust).

David Jerome · 11-06-2008, 07:56 AM

I dont think it is the manifold either. It appears it was my fault

Kevin or myself will update this thread in a few days when I get a chance to work on his car. I have a feeling the spoolup will be much better.

I wont leave you guys hanging, we had some fitment issues with the wastegate hitting the subframe with the kit. So I had to remove the wastegate from the manifold to drop the engine back in the car(we removed the engine to reseal the oil pan). I dont remember installing the valve seat that comes with the Tial BOV. We had to put on and take the wastegate off several times and it appears I never installed the valve seat that helps seal up the wastegate/manifold v-band connection. I will reinstall it in a couple days(hopefully have time) and we will report back. Kevin got his hands on about 5 other 500r dyno charts and they were all seeing 14-16lbs at about 43-4400 which is about 1k rpms sooner than Kevin.

afgmoto1978 · 11-06-2008, 11:49 AM

Hmmm...exhaust leak....

TurboSquirrel · 11-06-2008, 03:25 PM

Alright, problem is all sorted out now!

I've attached PFC Charts showing 3rd and 4th Gear runs from around 3K RPM.

Much better response than before with out the valve seat installed.

Happy Days!

afgmoto1978 · 11-06-2008, 03:20 PM

That would explain a few things. Oh, by the way David, my turbo is a 68mm turbine vs. turbosquirrels 74mm turbine. An A to B comparison may occur some later next year once I get my car back on the road.

afgmoto1978 · 11-06-2008, 03:41 PM

LOL, wow.

10-28-2008, 08:47 AM	#4
dregg100 Rotary Fanatic Join Date: Feb 2008 Posts: 432 Rep Power: 18	have you tried changing the dip switches to the "other" settings that greddy says to do if you are having problems? its on there website. __________________ '93 SSM Touring-S475... '87 Tii-LS1/T56

10-28-2008, 12:29 PM	#7
afterburn27 Rotary Fan in Training Join Date: Feb 2008 Posts: 58 Rep Power: 18	Wow, that is pretty poor response from an 0.84 A/R housing. I would expect 15 psi closer to 4k RPM. Your setup seems correct to me. Someone already mentioned it, but check to make sure you have the correct settings on your dip switches. I would also expect better response off the wastegate alone, meaning that your EBC setup might not be a factor. Are you sure that you don't have any exhaust leaks on either side of the manifold? I had a friend with a similar situation and once he fixed his exhaust leak he was spooling 500+ RPM earlier than before. It was tricky too because you couldn't hear it at idle or cruise. It was really only leaking under boost and he had an open wastegate so there was no way to verify the leak until it started leaving carbon deposits under the manifold. __________________ '93 RX-7 (GT3574 track toy) '74 Triumph TR6 (weekend cruiser)

10-28-2008, 03:22 PM	#8
David Jerome RCC Contributor Join Date: Jan 2008 Posts: 713 Rep Power: 18	Im pretty sure Kevin doesnt have any leaks between the engine/manifold, wastegate/manifold, or turbo/manifold. His response in 3rd gear is actually better than the only other person who has given me info about this kit. Its not impossible that there is a leak but everything on this car is brand new. __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

11-06-2008, 07:56 AM	#11
David Jerome RCC Contributor Join Date: Jan 2008 Posts: 713 Rep Power: 18	I dont think it is the manifold either. It appears it was my fault Kevin or myself will update this thread in a few days when I get a chance to work on his car. I have a feeling the spoolup will be much better. I wont leave you guys hanging, we had some fitment issues with the wastegate hitting the subframe with the kit. So I had to remove the wastegate from the manifold to drop the engine back in the car(we removed the engine to reseal the oil pan). I dont remember installing the valve seat that comes with the Tial BOV. We had to put on and take the wastegate off several times and it appears I never installed the valve seat that helps seal up the wastegate/manifold v-band connection. I will reinstall it in a couple days(hopefully have time) and we will report back. Kevin got his hands on about 5 other 500r dyno charts and they were all seeing 14-16lbs at about 43-4400 which is about 1k rpms sooner than Kevin. __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

10-27-2008, 01:45 PM	#1
classicauto crash auto?fix auto Join Date: Feb 2008 Posts: 816 Rep Power: 18	Porting on the engine? Exhaust size/configuration? (any cats?)

11-05-2008, 10:36 PM	#9
Trout2 Rotary Fanatic Join Date: Mar 2008 Posts: 104 Rep Power: 18	Did you guys make sure the flanges on the manifold were flat? Jack

11-06-2008, 03:20 PM	#14
afgmoto1978 Rotary Fanatic Join Date: Mar 2008 Location: Portland, Oregon Posts: 381 Rep Power: 18	That would explain a few things. Oh, by the way David, my turbo is a 68mm turbine vs. turbosquirrels 74mm turbine. An A to B comparison may occur some later next year once I get my car back on the road.

11-06-2008, 03:41 PM	#15
afgmoto1978 Rotary Fanatic Join Date: Mar 2008 Location: Portland, Oregon Posts: 381 Rep Power: 18	LOL, wow.