einari

I was thankin about power engineering exhaust. the full system with T75 downpipe and no-cat. I have heard this system is the best.
I just wanted to see your comments:

I drive a MY00 with no mods jet. But I have a blitz turbo timer,

I was also thanking about a blitz air filter at the same time as i will get a exhaust.

None Prouder

Spooky timing. I just got the full system with sports cat fitted to my P1 yesterday. Very nice low burble and more importantly, now pushing out 307 bhp and 272 lbs/ft of torque. I also stuck in the K&N panel filter. Oh, and the exhaust looks very shiney.

None Prouder

MorayMackenzie

I have the Power Engineering T75 downpipe and a catted centre section lying around: I do not like the way that the supposedly 3" system drops down to ~2.5" at each joint in the system (downpipe to midsection, midsection to backbox), this poses flow restriction issues and, IMHO, defeats the point of the exercise. I plan to change it for a Scooby Mania system at some point in the not to distant future as this is a true 3" system with, IMHO, a better design of twin dump downpipe. Oh, and the S.M. system is a more reasonable price too.

Moray

[Edited by MorayMackenzie - 1/18/2002 11:13:49 AM]

Tinsta

None Prouder.. how much did this all cost?

mikeesingh

iTrader: (3)

hi

i had the full T75 exaust on my UK MY99 with blitz filter
very nice deep burble sound (not as loud as a SS) and better quality than other exausts

my car mad 264 bhp & 251 torque @2850rpm

mikee

Tractor

I have the full T75 with sports cat and a Blitz induction kit on my car (sti 4 Type R). In my opinion this exaust is the dog's danglies - awesome noise (from burble to howl with loads of pops and bangs on the overrun). My car has been dynoed at 313 Bhp and it truly bloody fast - Its my third sti and it pi$$es all over the other two. Also has meaningful boost from the low 2000s (as opposed to 3500 revs standard, and much reduced lag throughout the rev range).

This is a very good quality exhaust too. I love it. If you are ever near me (W. London), drop me a line and I'll take you out for a spin.

Mike

Adam M

tractor, are you trying to tell me that changing the exhaust has brought boost in 1200-1500 rpm lower?

If so, I am sorry but that is bollocks! Your map would not be able to fuel it anywhere near correctly so if it is the case you would be running dangerously lean.

The thing I never understand with exhausts is when people give their opinons based on the finish of the product when it is brand new and the sound.

The thing is our cars make a nice sound. If you change the design of the system massively or use non conventional sound deadening (bpm twister) then you might change the sound, but otherwise there isnt going to be a major difference and they are all going to sound nice.

You should consider the look after some use, and more importantly you should use a mappable ecu to see if it flows any better by checking air fuel ratio before and after. In this respect the scoobysport is known to work well, as is my scoobymania. It is also the reason I prefer my BPM downpipe and why the twister with the bung in although quieter did not flow as well as when in its louder mode.

These are the tests people should apply, rather than a subjective mine sounds the best.

None Prouder

Tinsta

It wasn't cheap. £1265 fitted. I think it is the most expensive exhaust around if you have the sports cat.

None Prouder

stevie c

I have the PE on my scoob too,love the noise.

Cant tell you if it made any difference or the price,it was fitted when I bought it.Thankyou to the old owner whoever you are!

Steve

Danny Fisher

I had one of these as one of my first downpipes. When I swapped to a Scoobysport downpipe I was able to run more advance. I shall be trying a BPM unit in the near future, so could give you some news on that soon.

Dan

rsturbojohn

Anyone got a de-cat downpipe for sale?????


John.

Andy Winskill

NoneP - is that the price for the balanced exhaust. I took a look at PE's site and they appear to have two types, a balanced system and the replacement for the OEM exhaust. Balanced system looks nice but expensive

AndyMan

I've got the T75 full system (with cat) as well as a blitz induction kit on my P1. Both very good (about 310bhp).

Car is fast, but need more - staying local for the next upgrade though

None Prouder

Andy Winskill

I'm not sure what you mean by the balanced system. If you mean the equal length manifold, it isn't that. Anyway, mine is the T75 with sports cat. Very pleased, but it is quite noisy in the car. Haven't had it on the motorway yet to see if it annoying.

None Prouder

ScoobyTom

iTrader: (3)

I'm running T75 down pipe, standard centre with cat and PPP back box. Not sure of the power as I've not had a chance to run it up on a rolling road yet but the pickup is good. Noise is nice and fruity when pushing it but subdued when cruising on the motorway. However, I have fitted a full sound deadening kit...

Tom

AndyMan

How much was the sound kit Tom???

MorayMackenzie

If anyone is interested in a PE Downpipe or a system comprising of PE downpipe, Magnex centre section and Scoobysport backbox, please email me offline as mine is up for grabs. The car made 348bhp at PE with this system fitted.

wilf

Isnt a big attraction of the PE system the sports cat as unlike other systems you will still pass emissions if you swap front and centre sections?

Mickle

So does this mean from all the praise that the 3 inch to 2.5 inch restriction doesn't effect anything as I to am very much interested in this exhaust system?

Adam M

Theoretically, it isnt a good idea to do what they do, but I would have to admit, the figures seem to suggest that it certainly works.

MorayMackenzie

The 3" to ~2.5" restrictions in the system WILL affect performance, it's as simple as that.

The standard system centre pipe reduces the ID to about 2" at one point, hence anyone fitting the PE T75 system will notice an improvement through a reduction in restriction... however, the system will still be more restrictive than a true 3" system, such as the BPM, Scooby Mania or an HKS Hiper+3" downpipe combo.

StephenDone

Hi Guys,

I've got a full T75 & Manifold, so may be a bit biased.

When comparing exhausts. Compare the grade of stainless, the weld styles and the backbox filling.

My PE exhaust has S/S wool filling which will never decompose. Most others have fibreglass which slowly disintegrates.

PE Exhaust joints are swaged (sp?), which makes them much stronger.
How many exhausts do you see where the pipe has split off the backbox when you grounded it ?

The joints drop to 2.5inch so that the joints are compatible with the OEM parts. If you go for a 3inch jointed system, then you have to change everything at once, all from the same manufacturer. Using 2.5inch joints allows you to choose best of breed for each part.

I have 287bhp and 287lbft from a PPP 99MY Uk Turbo - a very happy boy.

Hope this helps.

Steve

MorayMackenzie

I had 346bhp and 300ft lb with standard subaru exhaust manifold, PE T75 Downpipe, T75 Cat Mid section and Scoobysport backbox, but this doesn't alter the fact thet however "practical" the 2.5" joins are, they will reduce the "3 inch" systems efficiency... Its simple physics.

It is interesting to note that when I replaced the T75 cat section with a 2.5" magnex centre section I needed to increase the fueling through the mid and top end on the motec, which means that fitting a Magnex 2.5" centre section in place of the PE " 3inch " catted part actually INCREASED power, which is nice.

I was happy with the overall performance of my "hybrid" system, but I need to replace it with something else to deal with my planned engine rebuild.

[Edited by MorayMackenzie - 1/25/2002 11:16:31 AM]

wilf

Moray,

Are you interested in selling your PE downpipe and centre section? (I want an exhaust upgrade that will pass emissions).

Please email me direct if interested.

StephenDone

Hi Moray,

I agree, 3inch all the way through is the ultimate and has the potential to yield better power. You seem to have done pretty well on the 2.5inch joint though. Nice power/torque !

Steve

P.S. I bet you did get better power from a clear 2.5inch Magnex pipe, than a 3inch with a loaf of bread in the middle :-) I don't think that proves that 3inch is bad, just that cats are bad.

[Edited by StephenDone - 1/25/2002 11:33:27 AM]

JIM THEO

Steve
You said PPP or am I wrong?
My concern is that I have to fit PE manifold in combination with the rest of the PPP exhaust and my Magnex D/P. I am afraid the lean mixture at the end of the mod, what are your expariences and how do you monitoring your mixture, det etc?
JIM

StephenDone

Hi Jim,

>You said PPP or am I wrong?
>
At the moment, yes. I am MY99, btw.

>I am afraid the lean mixture at the end of the mod,
>what are your expariences and how do you monitoring
>your mixture, det etc?
>
I don't have any mixture/det problems. When I get my car dyno tested, I also log all the engine parameters available on the select monitor via my laptop.

I run a bit lean between 1500-3000 RPM, however it's not lean enough to cause any det. I've tried richening this area up a little, however this impaired turbo spool up and I lost 20 lbft in this area. I don't know whether this problem was due to my exhaust or induction mods actually. I still have more work to do here. But like I say...it's not really a problem.

I occasionally get 0.5 to 1 degree of knock correction in parts of the map. However you expect that even on a standard car - it's what it's there for - keeping the ignition close to the edge.

Below is a log I took this week. If this makes the thread too long, let me know and I'll edit the posting....

Cheers

Steve

MAF MRP Lambda RPM Knock Correction Fuel Injector Pulse Width
1.94 0.1 0.885 1173 0.0 6
1.78 0.1 0.880 1220 0.0 6
1.94 0.3 0.860 1252 0.0 6
2.20 0.4 0.825 1290 0.0 5
1.88 0.6 0.795 1321 0.0 5
2.28 0.6 0.750 1364 0.0 5
2.18 0.7 0.700 1398 0.0 5
2.30 0.9 0.725 1436 0.0 5
2.30 0.9 0.540 1476 0.0 6
2.20 0.9 0.045 1509 0.0 6
2.34 1.0 0.010 1543 0.0 6
2.16 1.2 0.015 1571 0.0 6
2.22 1.3 0.020 1606 0.0 6
2.24 1.4 0.025 1638 0.0 6
2.26 1.4 0.025 1671 0.0 6
2.40 1.6 0.020 1708 0.0 6
2.34 1.9 0.025 1739 0.0 6
2.50 2.0 0.025 1779 0.0 6
2.54 2.0 0.030 1821 0.0 6
2.58 2.2 0.025 1852 0.0 6
2.58 2.3 0.025 1888 0.0 6
2.48 2.5 0.030 1913 0.0 6
2.62 2.6 0.030 1949 0.0 6
2.60 2.8 0.025 1979 0.0 6
2.52 2.9 0.020 2003 0.0 7
2.56 3.0 0.020 2026 0.0 7
2.66 3.2 0.045 2048 0.0 7
2.58 3.3 0.025 2071 0.0 7
2.64 3.5 0.035 2085 0.0 7
2.76 3.6 0.020 2103 0.0 7
2.60 3.8 0.025 2125 0.0 7
2.78 3.9 0.035 2143 0.0 7
2.60 4.2 0.025 2158 0.0 7
2.80 4.3 0.030 2176 0.0 7
2.86 4.3 0.040 2205 0.0 7
2.84 4.6 0.040 2222 0.0 7
2.80 4.6 0.085 2249 0.0 7
2.86 4.9 0.640 2267 0.0 7
2.88 5.1 0.635 2294 0.0 7
2.74 5.2 0.695 2321 0.0 8
2.94 5.4 0.755 2342 0.0 8
2.76 5.7 0.790 2376 0.0 8
2.88 5.8 0.805 2399 0.0 8
2.98 5.9 0.805 2437 0.0 8
2.88 6.2 0.805 2470 0.0 8
2.82 6.7 0.815 2500 0.0 8
3.06 7.0 0.815 2542 0.0 9
2.90 7.2 0.830 2582 0.0 9
3.04 7.5 0.830 2621 0.0 9
3.18 8.0 0.825 2671 0.0 9
2.98 8.3 0.830 2711 0.0 9
3.32 9.0 0.845 2762 0.0 10
3.20 9.4 0.860 2812 0.0 11
3.22 10.1 0.870 2869 0.0 11
3.26 10.7 0.865 2929 0.0 12
3.48 11.7 0.870 2982 0.0 12
3.56 12.6 0.875 3045 0.0 14
3.66 13.8 0.895 3109 0.0 15
3.62 14.9 0.895 3182 0.0 16
3.70 15.8 0.905 3248 0.0 16
3.66 15.9 0.905 3323 0.0 16
3.72 15.9 0.905 3386 0.0 16
3.72 15.9 0.905 3456 -0.5 15
3.74 15.8 0.905 3529 -0.5 15
3.70 15.5 0.905 3594 -0.5 15
3.72 15.5 0.905 3669 -0.5 16
3.76 15.8 0.915 3729 -0.5 16
3.90 15.8 0.905 3784 -0.5 16
3.90 15.8 0.905 3854 0.0 16
3.96 15.9 0.910 3929 0.0 16
3.90 16.2 0.915 4002 0.0 16
3.96 16.4 0.905 4078 0.0 17
3.90 16.2 0.905 4153 0.0 16
4.02 16.2 0.910 4211 0.0 17
4.04 16.2 0.905 4300 0.0 17
4.06 16.2 0.905 4360 0.0 17
4.08 16.7 0.915 4443 0.0 17
4.10 15.9 0.910 4515 0.0 17
4.08 16.1 0.915 4587 0.0 17
4.12 16.4 0.915 4673 -1.0 17
4.16 16.2 0.915 4720 -1.0 17
4.14 15.9 0.910 4811 -1.0 17
4.14 15.9 0.910 4873 -1.0 17
4.14 15.5 0.910 4941 -1.0 17
4.14 15.2 0.915 4983 -1.0 17
4.14 14.9 0.910 5044 0.0 16
4.16 14.5 0.905 5123 0.0 16
4.16 14.5 0.905 5183 0.0 16
4.18 14.3 0.905 5219 0.0 16
4.20 14.2 0.905 5271 0.0 16
4.18 14.2 0.905 5334 0.0 15
4.20 14.2 0.905 5419 0.0 16
4.22 14.2 0.905 5466 0.0 16
4.22 14.1 0.910 5499 0.0 15
4.24 14.1 0.905 5551 0.0 16
4.24 14.1 0.905 5631 0.0 16
4.24 14.1 0.910 5686 0.0 16
4.24 13.9 0.915 5734 0.0 15
4.28 13.8 0.915 5783 0.0 16
4.26 13.6 0.910 5805 0.0 15
4.24 13.6 0.910 5878 0.0 15
4.26 13.5 0.915 5906 0.0 15
4.26 13.2 0.915 5967 0.0 15
4.26 13.2 0.910 5990 0.0 15
4.26 13.2 0.910 6039 0.0 15
4.28 13.0 0.920 6098 0.0 15
4.26 12.8 0.915 6117 0.0 15
4.26 12.5 0.915 6153 0.0 15
4.26 12.3 0.920 6198 0.0 15
4.28 12.2 0.915 6250 0.0 15
4.28 12.2 0.910 6276 0.0 15
4.26 12.0 0.915 6303 0.0 15
4.26 12.2 0.910 6361 0.0 15
4.26 12.0 0.915 6394 0.0 15
4.28 11.9 0.915 6399 0.0 15
4.30 11.9 0.915 6454 0.0 15
4.28 11.9 0.915 6488 0.0 15
4.26 11.9 0.920 6522 0.0 14
4.30 11.7 0.915 6550 0.0 14
4.26 11.4 0.920 6579 0.0 14
4.28 11.3 0.915 6596 0.0 14
4.26 11.3 0.915 6620 0.0 14
4.28 11.3 0.915 6673 0.0 14
4.28 11.2 0.910 6673 0.0 14
4.24 10.9 0.915 6720 0.0 13
4.24 10.9 0.910 6726 0.0 13

Cosie Convert

Excellent stuff Steve, I love seeing raw data rather than just peoples interpretations.(I can then draw my own conclusions!)
I notice the MAF levels off at 5500 and remains fairly constant right up to 6700. Is this due to the turbo reaching it's flow limit or is the ECU actually controlling to an upper MAF limit ?

The timing figure in the right hand column, is that degrees advance from TDC ?

thanks

cc

[Edited by Cosie Convert - 1/27/2002 2:34:01 PM]

Cosie Convert

John B, You had two tiny flat spots in your power print off from Star RR. It would be interesting to see if they coincide with the knock retard points on Steve's PPP ECU ?

Steve - Any charge temps available for that run ?

thanks

cc

EvilBevel

That would be open to interpretation CC but I bet it's more to to with the turbo / tapered boost at high RPM.

I think (interpretation again) that a MAF on a MY99 could go up to 4.8 volts IIRC.

Theo