Paging Aps :)
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
Paging Aps :)
Peter how is the corvette project coming along?
I did read something intresting that a member said in a post a couple of weeks ago and wanted to know if that would make a diffrence with the kit
"I had the same issues with my Isuzu Impulse. I was maxing my power at 215 awhp at 20psi. We made 209 at 12psi so the gains were not there with more boost. We installed a back pressure gauge onto my exhaust manifold to moniter restriction and saw an increase in pressure. I had a .36 ar housing and switched to a .63 ar exhaust housing. Now I hit 245 awhp at 15psi (with spark blow out though, numbers will be higher once MSD is installed).
I think this is what is happening with the APS kit. The exhaust housing maybe too small to flow more exhaust".
Peter do you think that could be the issue? the reason i am asking is next summer i might get the fuel system and would love to have the ability to turn up the boost and make more power NOT less ..
thanks
I did read something intresting that a member said in a post a couple of weeks ago and wanted to know if that would make a diffrence with the kit
"I had the same issues with my Isuzu Impulse. I was maxing my power at 215 awhp at 20psi. We made 209 at 12psi so the gains were not there with more boost. We installed a back pressure gauge onto my exhaust manifold to moniter restriction and saw an increase in pressure. I had a .36 ar housing and switched to a .63 ar exhaust housing. Now I hit 245 awhp at 15psi (with spark blow out though, numbers will be higher once MSD is installed).
I think this is what is happening with the APS kit. The exhaust housing maybe too small to flow more exhaust".
Peter do you think that could be the issue? the reason i am asking is next summer i might get the fuel system and would love to have the ability to turn up the boost and make more power NOT less ..
thanks
Melting Slicks
Joined: Sep 2005
Posts: 2,521
Likes: 146
From: Watertown CT
Vegas, I haven't seen Peter on in a while, maybe they have a shop close down period over there. He was supposed to e-mail the info on his exhaust and that never happened, there is also a thread on their fuel system and a issue they have with it and they haven'tupdated that, and then there's the C5 that they are building, and that hasn't been updated, so I'm not sure where he is.
Peter, if you are out there we would like to hear back on all of this stuff!!
Dan
Peter, if you are out there we would like to hear back on all of this stuff!!
Dan
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
Quick trip to Cartek or Vette Doctors never hurt anyone, but I understand you guys frustration. You were told one thing and it did not come to life and you are left holding the bag trying to figure out how to get your already paid for setup to work as advertised/promised. You know very few vendors/shops/tuners/installers will step up and help you after you have paid for the combo and when they do they blame you for ALL the issues. It is sad because this seems to be a trend. They could not possibly make a mistake or be wrong. God forbid.
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
Quick trip to Cartek or Vette Doctors never hurt anyone, but I understand you guys frustration. You were told one thing and it did not come to life and you are left holding the bag trying to figure out how to get your already paid for setup to work as advertised/promised. You know very few vendors/shops/tuners/installers will step up and help you after you have paid for the combo and when they do they blame you for ALL the issues. It is sad because this seems to be a trend. They could not possibly make a mistake or be wrong. God forbid.
I agree with most of what you said.. but vettedoctors made what i made 703 ( i made 707) .. the only other car out there that broke 900 was the cartek car and im not about to go and dump 15 grand for new heads , engine , cam.. .. no reason for the turbos not to make more power after 12 psi .. vettedoctors made 703 with 14.5 psi . I made less Hp with 13.1 psi then i did with 11.6 ..
it does suck b/c if down the road if i were to get the fuel system from ECS and would not make any more power than now( due to turbos or what ever flaw the kit has ), then that defeats the whole purpose of having the ABILITY to turn up the boost at will that come with owning a turbo car.. i mean its not like we are all running out of room over 16 psi or 17psi , its 12 psi..
Dan .. maybe Peter and the Eskimo guy have gone south to Anartica with the Vette ( i hear the DA and air over there is perfect for turbos)
Now Peter ,that DOES and Will Not count if you beak over 800 there(thats cheating)
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
Navigator
Joined: Aug 2007
Posts: 9
Likes: 0
From: Orlando FL
Woo Hoo! Quoted on one of my first posts!
Anyways, if this is the case I think it would be wise to step up to a t3 exhaust housing and a manifold that flows more exhaust. I'm not too sure how well the APS turbo exhaust housing flows compared to a t3. If there are better A/R's for the APS housing then it would be cake to upgrade.
Anyways, if this is the case I think it would be wise to step up to a t3 exhaust housing and a manifold that flows more exhaust. I'm not too sure how well the APS turbo exhaust housing flows compared to a t3. If there are better A/R's for the APS housing then it would be cake to upgrade.
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Melting Slicks
Joined: Sep 2005
Posts: 2,521
Likes: 146
From: Watertown CT
I don't beleive the restriction is in the turbo or the manifold as these are the same on the GTO and they pull 800 rwhp. Obviously the exhaust helps, thanks, Sam! The thing I will be trying next is totally disconnecting the air intake tubes, run the turbo's clear and see if it will boost. Those accordian pipes are getting smashed pretty good under the radiator and as suction increases I'm sure they get even smaller, if not collapsed. I guy 1 town over, turns out he has a Superflow load dyno, I will be visiting him shortly and trying some different stuff.
Dan
Dan
Pro
Joined: Nov 2004
Posts: 509
Likes: 0
From: Nevada
I don't beleive the restriction is in the turbo or the manifold as these are the same on the GTO and they pull 800 rwhp. Obviously the exhaust helps, thanks, Sam! The thing I will be trying next is totally disconnecting the air intake tubes, run the turbo's clear and see if it will boost. Those accordian pipes are getting smashed pretty good under the radiator and as suction increases I'm sure they get even smaller, if not collapsed. I guy 1 town over, turns out he has a Superflow load dyno, I will be visiting him shortly and trying some different stuff.
Dan
Dan
Les
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
I don't beleive the restriction is in the turbo or the manifold as these are the same on the GTO and they pull 800 rwhp. Obviously the exhaust helps, thanks, Sam! The thing I will be trying next is totally disconnecting the air intake tubes, run the turbo's clear and see if it will boost. Those accordian pipes are getting smashed pretty good under the radiator and as suction increases I'm sure they get even smaller, if not collapsed. I guy 1 town over, turns out he has a Superflow load dyno, I will be visiting him shortly and trying some different stuff.
Dan
Dan
can't wait for you to go and redyno your car..
i think its the A/R housing.. like LB said i wonder how hard is it to upgrade or change that..
maybe Peter can chime in...
Melting Slicks
Joined: Apr 2005
Posts: 3,418
Likes: 1
From: Chicagoland Area IL
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
Burning Brakes
Joined: Jan 2004
Posts: 933
Likes: 0
From: Inland Empire CA
Yeah, I know those intercoolers probably aren't the hold up, but I'm positive that helps the GTOs make those better numbers..... it's gigantic. 
I'd love to see the IATs on that thing. My point is that the intercooler on the GTO probably keeps the IATs lower so that may translate to an extra 20rwhp or whatever it may be. Just a piece of the puzzle that adds up to the big picture.
I'd love to see the IATs on that thing. My point is that the intercooler on the GTO probably keeps the IATs lower so that may translate to an extra 20rwhp or whatever it may be. Just a piece of the puzzle that adds up to the big picture.
Last edited by Third Gear; Sep 12, 2007 at 02:47 AM.
Burning Brakes
Joined: Nov 1999
Posts: 1,221
Likes: 59
From: Abingdon VA
My "vegas bet" is on the turbo itself IF this is a common problem with all of the C5 kits. The 0.86 exhaust AR is fine. The 50lb/min comp rating is fine. The LPE/Incon kits use a 44lb/min compressor and will top out around 700-720rwhp maxed out 17psi. Change the comp to a -12 chra and they will go 825-850 maxed out....sounds like the Mit compressor is not flowing 50lb/min.....
If you're worried about the filter tubing as a restriction, just disconnect it on the dyno for a quick run....won't hurt anything.
APS will get it figured out....may be a small isolated problem with a few kits.
If you're worried about the filter tubing as a restriction, just disconnect it on the dyno for a quick run....won't hurt anything.
APS will get it figured out....may be a small isolated problem with a few kits.