Remap . what BHP to Expect
26 July 2005, 12:42 AM
#1
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Remap . what BHP to Expect
Right Xtream Motor Sport are getting pat to do my Remap.
Now i just wonderd what sorta Bhp to expect when done.
Its a
Impreza WRX 2003
With a Full Decatted(including Down pipe) Exhaust System
Cheers
Now i just wonderd what sorta Bhp to expect when done.
Its a
Impreza WRX 2003
With a Full Decatted(including Down pipe) Exhaust System
Cheers
26 July 2005, 01:49 AM
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Results can vary on each individual car even if it has the same mods so its hard to give a figure really.
Although i will say you will definately be able to tell a big difference in performance
Although i will say you will definately be able to tell a big difference in performance
26 July 2005, 09:13 PM
#6
Originally Posted by mgcvk
Pat did my '03 wrx with full decat. You are looking at between 280 - 290 bhp and a whole lor more fun!
F
26 July 2005, 10:02 PM
#7
Well this is an approximation based on the air flow readings he gets on his laptop. I want to get it on a rolling road soon to get an accurate reading before i mod any further. I believe Pat has done loads of new age cars and although each differs slightly he reckons between 280 and 290 bhp with the standard turbo with full decat uppipe and downpipe. I have the full scoobysport/janspeed system. The injectors are running now at 100%, but I am assured they can take it. This is why you have to upgrade injectors to realistically get into the 300's.
If you think ppp gets you 260/265 without a full decat, a mapper can push things further and the car is more free flowing without cats.
If you think ppp gets you 260/265 without a full decat, a mapper can push things further and the car is more free flowing without cats.
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26 July 2005, 10:33 PM
#10
My intentions are to keep it in the family and go sti injectors with vf34 or vf35 turbo, sti 8 IC, uprated fuel pump and ported oem headers. Hopefully around 340bhp with more mapping. Deffo want to see some dyno figures on car first, as it is at moment, to make sure its not all flying monkeys! Car seems very happy, doesn't burn any more oil or anything scarey and I would say fuel efficiency is improved at sensible motorway speeds - boot it and watch the optimax disappear before your eyes!
26 July 2005, 11:17 PM
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Interesting, I've got similar mods (with STI TMIC, panel filter etc..) and the IDC is nowhere near maxed out, they seem to be more than capable of coping with 300bhp+ no problem..! In fact Andy F ran around 320 on std injectors and pump no problem on his 03 WRX. (BTW mine is an 05) TBH, I wouldn't be too happy running 100% IDC.
If I was to want more (and I don't
) I'd go for a Hybrid TD04 and port the OEM headers and that would definately do me, a good solid 300..!
If I was to want more (and I don't
) I'd go for a Hybrid TD04 and port the OEM headers and that would definately do me, a good solid 300..!
26 July 2005, 11:27 PM
#12
Yep, this hybrid TD04 does seem a good option keeping quick spool up. I fancy some bigger boost from a vf34 or 35 to really change the character of the car even though I know its going to be a bit more laggy. Hopefully headers would help. I'm really keen for things not to break on the motorway so would rather have extra safety margin of better fuel pump and injectors. Andy F is experimenting is he not in taking car as far as poss changing as little as poss. I've read something in one of the mags??
27 July 2005, 10:41 AM
#13
340BHP VF35 and a few bolt on's. I'd like to see that on the rollers. 100% IDC I bet you like living on the edge The VF35, STi TMIC is a good combo for that target but don't expect to gaurantee it will happen.
F
The VF35, STi TMIC is a good combo for that target but don't expect to gaurantee it will happen. F
27 July 2005, 11:10 AM
#14
In reality it would make more sense to get a 2nd hand sti rather than spend a couple of grand putting sti bits in, but I reckon my car is worth 13k max and and blobby sti is still going to be 16-17k.
27 July 2005, 04:52 PM
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Originally Posted by XR-Wayne
Right Xtream Motor Sport are getting pat to do my Remap.
Now i just wonderd what sorta Bhp to expect when done.
Its a
Impreza WRX 2003
With a Full Decatted(including Down pipe) Exhaust System
Cheers
Now i just wonderd what sorta Bhp to expect when done.
Its a
Impreza WRX 2003
With a Full Decatted(including Down pipe) Exhaust System
Cheers
27 July 2005, 06:42 PM
#17
Originally Posted by BOB'5
and you're running 100% IDC? 
This is what the fella told me at the time of mapping as I asked how far you could go with standard engine and turbo with decat - as my technical knowledge though improving is limited. He reckoned he had pushed someone's car to just over 300 ponies having warned that turbo might pack up, which it did, but the owner wanted to upgrade anyway. I've had no dramas.
27 July 2005, 07:12 PM
#18
The turbo packing up is the least of your problems. What some of us on this thread are alarmed at is the possibility that you could go lean. This will lead to det, det leads to a dead engine.
F
F
28 July 2005, 09:07 AM
#23
Hang on a mo. I have done over 16 thousand miles since my remap booting it on back roads and lots of motorway miles with absolutely no problems. I stress abslutely NO problems...... I wouldn't want people taking as gospel a remembered conversation I had with the mapper who has far more expertise than me. I stress again that I am a very very happy customer.
28 July 2005, 11:48 AM
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I guess that not many of you have read up on newages...
I seem to remember an article stating that injectors were running at 107% on one specific car (err I don't get this either...).
I think instead of guess work and flaming individual people, we need to get an expert on this thread...where's Andy F
I seem to remember an article stating that injectors were running at 107% on one specific car (err I don't get this either...).
I think instead of guess work and flaming individual people, we need to get an expert on this thread...where's Andy F
28 July 2005, 12:08 PM
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i have read up james (several 100 times just to be sure!), as ive had my car done. I changed my injectors though so im not strangling the 380s.....the general way of getting more flwo through a 380 injector is to raise the fuel pressure, hence how they can flow enough fuel to put a car above 300bhp....
the cars only as capable as its weakest component.....
the cars only as capable as its weakest component.....
28 July 2005, 01:37 PM
#27
AFAIK the Injectors can run over 100% but they spray fuel against a closed valve.
I guess when the valve opens there is atomised fuel waiting and the injector is still sticking fuel into the cylinder..!!
Thus the injector is operating over and above the "window" the intake valve is open hence the duty is greater than 100% ........... bigger injectors can use this window because they flow more fuel.
I may however be competely wrong.
Midlife.....
I guess when the valve opens there is atomised fuel waiting and the injector is still sticking fuel into the cylinder..!!
Thus the injector is operating over and above the "window" the intake valve is open hence the duty is greater than 100% ........... bigger injectors can use this window because they flow more fuel.
I may however be competely wrong.
Midlife.....
Last edited by Midlife......; 28 July 2005 at 04:32 PM.
28 July 2005, 11:18 PM
#29
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Originally Posted by mgcvk
Well this is an approximation based on the air flow readings he gets on his laptop. I want to get it on a rolling road soon to get an accurate reading before i mod any further. I believe Pat has done loads of new age cars and although each differs slightly he reckons between 280 and 290 bhp with the standard turbo with full decat uppipe and downpipe. I have the full scoobysport/janspeed system. The injectors are running now at 100%, but I am assured they can take it. This is why you have to upgrade injectors to realistically get into the 300's.
As far as the injector is concerned, running at 100% is not a problem.
As far as the engine is concerned, it can be.
If the car was mapped on the coldest day of the year, with the highest atmospheric pressure and its highest ever boost peak then 100% IDC would be ok. This is because any other circumstances would result in lower airflow and a corresponding lower than 100% fuel requirement.
If however it was mapped on an 'average' day, then you could potentially run into problems when there is a greater airflow, such as a colder/higher pressure day, as there will be no more fuel available to match the additional air and the car will run leaner/hotter than during mapping.
I ran my own 03 WRX injectors to 100% duty but that was as a development experiment and I was continually monitoring the engine throughout, it is not something I would do on a customers car.
Regarding reported dutys of over 100% this merely means the requested duty cycle exceeds the available time. On JECS and Denso ECU's (classic and new age) after 100% the injector is open continually.
On Apexi it means something slightly different !
Andy
28 July 2005, 11:22 PM
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Originally Posted by Midlife......
AFAIK the Injectors can run over 100% but they spray fuel against a closed valve.
I guess when the valve opens there is atomised fuel waiting and the injector is still sticking fuel into the cylinder..!!
Thus the injector is operating over and above the "window" the intake valve is open hence the duty is greater than 100% ........... bigger injectors can use this window because they flow more fuel.
I may however be competely wrong.
Midlife.....
I guess when the valve opens there is atomised fuel waiting and the injector is still sticking fuel into the cylinder..!!
Thus the injector is operating over and above the "window" the intake valve is open hence the duty is greater than 100% ........... bigger injectors can use this window because they flow more fuel.
I may however be competely wrong.
Midlife.....
When the injector is at 100% duty it means 100% of the complete 720 degrees, not just the intake valve open time.
cheers
Andy