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400hp only producing 300hp? Robbed/choked? Help

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Old Aug 7, 2010 | 02:22 PM
  #61  
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From: the burgh, pa
Originally Posted by BoostFTW05
Say what you want fellas at the end of the day I know what I have. I would love to know if thats a stock 8 turbo record that would be great but the stock turbo is coming off just as soon as I graduate from the academy.

Side note, Running a less agressive tune it put down 383/412 uncorrected I have that sheet too if you would like to see it. All where done on VDR and on dynojet.

Edit:what the heck ill throw it in.

You are running a correction factor of 1.110 on that sheet? That will increase numbers a good bit...
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Old Aug 7, 2010 | 03:15 PM
  #62  
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From: kissimmee FL.
Has the original poster even replied yet? 60 posts deep already? Dang!
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Old Aug 7, 2010 | 11:03 PM
  #63  
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From: Thomasville NC
Thats the configuration its set at, do you use VDR? If so you would know its grayed out because you cant change that number, it would be lower for say buschers mustang dyno.

Last edited by BoostFTW05; Aug 8, 2010 at 12:24 AM.
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Old Aug 8, 2010 | 08:41 AM
  #64  
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From: Salt Lake City
Put the stock turbo back on
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Old Aug 8, 2010 | 09:10 AM
  #65  
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Did you happen to check your timing... you seriously need to post up a log so we can see what is going on...
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Old Aug 8, 2010 | 10:43 AM
  #66  
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From: SoCal
Originally Posted by Weston_843
the tune is spot on... it actually helped... before we finalized the tune the car had 263whp and 202 wtq. tuned the car to make sure its in spec afr=11.5 across the board.
Something is WAY wrong. With just a full 3" exh and mil spec cat, ets licp and uicp I did 273hp/271 ft lbs @23 psi on a mustang dyno on 91 octane.
Your car just doesnt like the mods you threw on for whatever reason.
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Old Aug 8, 2010 | 05:19 PM
  #67  
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From: the burgh, pa
Originally Posted by BoostFTW05
Thats the configuration its set at, do you use VDR? If so you would know its grayed out because you cant change that number, it would be lower for say buschers mustang dyno.
I have never used VDR, and I am not trying to get on your setup or put your numbers down. I am sure you are making great power with your setup, but over the 400 mark is just EXTREMELY difficult to do, if it is even possible on the stock 8 turbo with the 9.8 housing. It is just a matter of physics and how much air can possibly flow through that small hotside and turbo without it being either ridiculously high RPM's or extremely high intake temps from the turbo.

If you search on the stock 8 turbo record you will find people struggling to get into the 390's and they have a fully built setup. The stock block, but ported heads, cast intake manifolds, I am talking about everything built and they were only putting down very high 300's on 93 octane with aggressive maps to boot.

As I said, I have never used VDR, since I have been lucky to be so close to both Buschur and also some local dynos here in Pittsburgh. I have a feeling though if you would throw that on a regular dyno dynamics or mustang dyno using the 1.00 CF (that should be used) you would be lucky to put down above 390. I would be very interested to see your plot though, because you might be the one to break it, but I would have to see some actual dyno printouts before I would believe that number.

Sorry, and again I am not meaning to upset you or put your setup down, but I am just skeptical. I hope you prove me wrong.
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Old Aug 8, 2010 | 05:42 PM
  #68  
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Originally Posted by jy951
Are you sure your clutch isn't slipping?
no, clutch is fine
Originally Posted by Richsmith4
So I read all these great ideas and all. So I guess if you check all these things and they are all ok than I have to ask. What about the injectors? Are you being fuel starved? I just didn't know if 720cc were big enough.
injectors ran at 63%

Originally Posted by 4g63Moon
how much psi does the 9 bov hold? And get a E85 tune man!
I wish i could get E85... no stations near 30 miles from me
Originally Posted by savagejay1
I would check your fuel pump and injectors.

Also, what was the last mod you did to it? When did this start happening?
Sorry I work on weekends for 15+ hr shift FML..

I just found out my boost reference point is located on my LICP? Y?

could it also be timing being off, due to my camgears?
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Old Aug 8, 2010 | 05:47 PM
  #69  
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From: kissimmee FL.
Well, what are your camgears set at?
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Old Aug 8, 2010 | 05:54 PM
  #70  
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As far as post a log, I will have to get Criddler to post it here for me....

As for the 400/400 9.8, its possible, there is a guy that is attempting the same thing in utah, but i think he will be using water/meth

My camgears were set @ -1,-1
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Old Aug 8, 2010 | 05:54 PM
  #71  
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From: the burgh, pa
Originally Posted by Weston_843
no, clutch is fine

Its good the clutch is fine, but you would likely feel some slipping during pulls and would realize you were being robbed of power.
injectors ran at 63%
Your IDC isn't really the important thing, it is the AFR's for which the motor is running. It is good you aren't tapped out of injector, but if your AFR's are in check that is all that is important. Now triple check your timing numbers and make sure they are alright.

I wish i could get E85... no stations near 30 miles from me
Switching to E-85 would help, but something else is wrong here. You should be making more power on pump than you are now.

Sorry I work on weekends for 15+ hr shift FML..

I just found out my boost reference point is located on my LICP? Y?
That is interesting, could throw the boost off. Switch it to the J-Pipe on the turbo and see if it makes a difference. Be sure to keep an eye on your wideband during this switch, because if the boost does increase then you are going to throw your timing and AFR's off considerably due to the increase in boost.

could it also be timing being off, due to my camgears?

Yes, if your cam gears are misaligned (shouldn't be unless your mechanic is an idiot or they are adjustable cam gears degreed incorrectly.) they will throw off timing and basically you could be running very aggressive (not likely because you would be knocking) or basically none regardless of what you put into the ROM. If the gears themselves are wrong then everything you have put in the tune for timing will be skewed and incorrect, either aggressive or retarded. This would be something to double check.
See bold posts above.
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Old Aug 8, 2010 | 06:06 PM
  #72  
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From: killa streets of slc
I saw that 14 sec run. You were kinda shifting slow ( not being rude). But even with slow shifting you should have ran a lot faster.

For reference I ran a 13.2 with a super crappy 2.1 60ft ( first time dragging) Same drag strip, and I only had a 3 inch ex and tune....

Weston You should let me drive your car :P

Here is my first run ever... Listen to that clutch slip hahahah 2.2 60ft like what !!!!!

http://www.youtube.com/watch?v=loKcwMKrx1I
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Old Aug 9, 2010 | 10:48 PM
  #73  
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From: ma
Originally Posted by Weston_843
absolutely no knock at all... even with the aggressive timing
By this statement, Im assuming you tuned your car probably with a friend that is not by anymeans a pro tuner. Do yourself a favor and bring it to a shop and have it tuned.
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Old Aug 9, 2010 | 10:59 PM
  #74  
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From: ma
Also heres a few things everyone is over looking and I have a good theory to back it up. Whens the last time you changed the spark plugs? How about the wires? With 720cc injectors and your setup, with a good tune they should be 85+%idc which would be around 400whp. You either are not getting enough air in the motor or your not efficently burning the air/fuel. So repalce the plugs/wires and get a new air filter.

On a side note the comp numbers are kinda low, theres a very small chance you lifted the head. Has the car overheated before?
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Old Aug 11, 2010 | 01:43 PM
  #75  
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Originally Posted by b16a2delsol
I saw that 14 sec run. You were kinda shifting slow ( not being rude). But even with slow shifting you should have ran a lot faster.

For reference I ran a 13.2 with a super crappy 2.1 60ft ( first time dragging) Same drag strip, and I only had a 3 inch ex and tune....

Weston You should let me drive your car :P

Here is my first run ever... Listen to that clutch slip hahahah 2.2 60ft like what !!!!!

http://www.youtube.com/watch?v=loKcwMKrx1I
I usually have a problem with 3rd gear and If u ever hear my car there it is 3rd gear i sit and wait basically for it to float in, and by that time ive dropped off the boost... (solving that with a new trans)

Originally Posted by 3gEclipseTurbo
By this statement, Im assuming you tuned your car probably with a friend that is not by anymeans a pro tuner. Do yourself a favor and bring it to a shop and have it tuned.
I trust him more than most others to touch my car... There isn't really other good tuners in utah to check mine.

Originally Posted by 3gEclipseTurbo
Also heres a few things everyone is over looking and I have a good theory to back it up. Whens the last time you changed the spark plugs? How about the wires? With 720cc injectors and your setup, with a good tune they should be 85+%idc which would be around 400whp. You either are not getting enough air in the motor or your not efficently burning the air/fuel. So repalce the plugs/wires and get a new air filter.

On a side note the comp numbers are kinda low, theres a very small chance you lifted the head. Has the car overheated before?
I changed the plugs and wires when i bought the okada coil packs and installed the new turbo, I will definitely try replacing the plugs and wires first, then the intake and see where that leads. the car has only overheated once, due to a blown hose.
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