Sti_Lad

How have you changed the stock Boost level on the Sti8 ppp?? Change of restrictor I presume? Or re map

Prodrive Andy

Very happy with my sti8 ppp 326 bhp!!!! very happy indeed

nicebloke36

just had it on rolling road and sti8+ppp 308 bhp and 280lbft torque [bit dissapointed with torque so ive sent an email to mike wood after all you pay 2000 notes for 299lbft then thats what you should have!]
paul

TVR Gary

I watched the STi ppp's at Santa pod making low 14 second runs at around 95 MPH and wasnt impressed for my two pennith worth.

Gary prepares for the abuse he gets everytime he mentions this

ramdor

iTrader: (2)

Gary,

Mike mentioned somewhere that the ppp restricts boost when intake temp is 40'c or above to save engine and that doing these runs is not representative of normal road driving (ie. intake temps far lower etc etc).

My s.e.c.s (psi3) was showing an intake of 6'c the other night, and bloody hell was it shifting.... infact I was thinking at the time that the car was completely mental.

Some nice B roads, low hedges, night time and cold weather =

Richie.

TVR Gary

Yeah i remember Mikes comments.

I still dont think the car is a patch on the Spec C. Different animal altogether ...mind you so is the comfort / sound etc

Dazza's-STi

Andy how did you get 326 bhp

Please tell!
Dazza
Waky

Tim66 STi8

I'm thinking of getting PPP 4 my sti8 but have been told you need 2 upgrade from the standard 17" wheels 2 18"?
Is this true & why?

hawkeye

My understanding is that you DONT have to upgrade but prodrive RECOMMEND you upgrade to take full advantage of the torque???

why i dont know, most people ive seen put smaller wheels on to get faster 1/4 mile times ???

maybe its just a plot to sell more wheels and make them EVEN more money


hawk

DrEvil

Tim - its recommended, not mandatory. I think the reasoning behind it is down to less tyre wall flex or something (someone else will be able to explain this better).

Rgds, Alex

nicebloke36

apparently prodrive reckon that with the imrpoved bhp and increases in torque, the standard 17" sti8 wheels dont hang onto the road enough on the twisites and in the wet, ask mike wood, he explained it all to me very well, also sommit to do with the diameter and power......blah blah.....

Neil W

I am seriously considering swapping my de-cat MY01 for an STi8 (non PPP) but reading this thread is making me have second thoughts.

Will I not notice much of a difference in perfomance then unless I get it with PPP?

BL

My STI8 is a hell of a change from the WRX.

I mean it is a completely different car. Well worth it in my opinion.

I got TEK3 put on it with a full decat system and induction kit and the results are amazing!!! 6th gear acceleration is crazy!!!!!

However, you can out TEK3 onto your WRX as well taking it near 300bhp/290ib torque!!!!

Be warned that the fuel cinsumption on the STI8 is killing me compared to the WRX!!! Well whats a few notes when you can have fun

Neil W

Bob,

Is that what you changed your WRX for then?

Neil.

ChrisJD

After previous posts on this and my dads comments (see JohnD) I took my car back to my dealer on Tuesday. The result was that the turbo/exhaust restrictor was blocked, with a diameter of about 1.5mm, I guess it's not difficult. This must have been as such since the car was new. It now runs much better, actually feels as though it has a turbo!! sixth gear performance is also far improved. Still not the great ball of fire I would expect, but far improved nontheless. It still doesn't go much before 4000RPM, which is a little disappointing, but I need to drive and feel it more.

Chris

Neil W

This is seriously putting me off getting one of these now. I guess the only way is for me to go and have a test drive and see for myself.

nicebloke36

i recently had mt sti8 ppp'd [last tuesday] i think ive posted various comments on my opinion and feelings of the results, i too was a little 'dissapointed' with the results, i started to think there was some fault with the ppp or car,,, it was only last sunday that i started to 'feel' like the ppp was there, i admit that was the first time i had actually been able to take it for a blast without the kids in the back, so i took it down a few very scarcly used roads near where i live,[one is actually a nice new two laner that is long an st8 and never used!]
so i did a few 0-60 blasts and the car felt a different animal, so i took it around a few back roads and twisties and i started to feel like there wasnt enough road to open it up!
Now as far as kick in the neck, i do feel that that has lessened somwhat since the ppp was added, now the car is 'smoother'. i think it is this 'smoothness' that fools alot of people including myself into thinking there is no poke to the ppp. it seems that the nonexistent 0 to 4000 revs then a massive blast of acceleration that was inherint in the sti8 standard is replaced by usable acceleration from about 2500 +, so the 4000 bang semms less, but there is more torque and grunt from 2500.
Mike woods explained this to me after i desperately wrote him an email..........
-------------------------------------------------------------------
"Paul
The way the boost comes in now is much more progressive, with decent performance from as low as 2500 as you say rather than a huge hit at 4000. This can mask the fact that there is actually more performance everywhere. If you want we can put some lag back in to give you a really huge hit at 4000rpm!!
The exhaust is also less 'raspy' as you call it as we've tuned the rear silencer to suit the higher flow rates needed to give 300+bhp.

having spoken to the chap on Scoobynet with the problem on his STi it transpires that the dealer had a problem during the fitting of his package and had to remove the turbo to extract a damaged stud. My feeling is that his problem is more likely to be mechanical rather than an ECU issue.

If you feel your car isn't right than I would suggest taking it back to the dealer who can check it out for you with their diagnostic equipment to put your mind at rest.
Regards
Mike"
-------------------------------------------------------------------
anyway i had my car rolling roaded and it got 308bhp at the flywheel and about 240 at the wheels, strangely it seems to feel better and better every day ?!?!?!?!?!? but that cant be the ecu learning can it ????? cos i thought they learnt in minutes???? unless mine was a poor achiever at school lol
ive also recently changed from optimax[used for years] to super..and the car feels even better, more lively..
so to conclude, id recommend the ppp for both performance,safety and warrenty view points, yes there are more bang to the buck packs out there but..... do you want the actual 'bang'
hope this helps, anyone welcome to email me for even more long winded boring versions of above or any queries about my ppp'd sti8
paul


[Edited by nicebloke36 - 10/30/2003 11:16:37 AM]

hawkeye

Regards the raspy back box if you know womeone who has one try the WRsport backbox instead of the prodrive one, boy do they sound different!!!!!!


hawk

nicebloke36

are wrsport and prodrive different, i know when i got my car prodrived and the springs done the springs came with wrsport info???
so whats this wrsport backbox like ????
any better or worse than the ppp one ?? how much and what does it sound like ?

DJB

I've had PPP on my STi7 for about 6 months (ECUTek type - same as STi8). I was initially disappointed with the performance at certain times of driving. I noticed that driving at night along motorways and fast A-roads, the performance was almost always excellent but at other times wasn't so good. I've now learned that the performance is crap in 2 situations and I think I now know why.

1. This is alluded to above. You're stuck in trafic which then clears and you get a chance to floor it. You get poor acceleration. I understand that this is due to an overheat problem, not a true rise in the engine temperature which is strictly controlled by cooling water and fan but so-called heat-soak into the turbo intercooler i.e. transfer of heat from the exhaust manifold and turbo into the intercooler due to their close proximity. This problem disappears when the road speed increases due to air flow through the air-scoop into the intercooler.

2. Engine below normal running temperature. This is built into the ECU (only with PPP I think) to prevent you thrashing it when its cold - makes sense I suppose.

D.

Sti_Lad

Chris JD, what size restrictor did they put back in your car? Still 1.5mm or larger?

Dazza's-STi

Went for another tool acroos the tops the other night @ 4deg "bloody cold" and hells teath it felt quick! very quick and the best bit was the noise... between the walls with the back windows down a bit ahrrrrrr you can feel the percusion off the walls. And at full chat hear the gasses trying to blast out the back box, amazing nice a quet when you want it too. I don't agree with noisy cars, but this is fine as you can keep it quiet arount other people and indulge when free to..
I'll record it and add to my site...

ChrisJD

They just cleaned the original restrictor, so no change. It is the original as they don't change it on the PPP. Amazing what a bit of dirt can do.

Chris

Sti_Lad

I was told by wilsons that they change cat, exhuast front section, rear box, ecu map AND restrictor! So conflicting sotries there! I am just not entirely sure if you need to go bigger or smaller to get gains? My car runs about 1.25 Bar. hear d people running more with factory ppp....

ChrisJD

Wilson's is my local!

I know as standard it should run 1.2bar (as did my STI7), but everyone seems to have different ideas as to the figure after PPP, it varies between 1.25 and 1.4bar. Don't know what it is meant to be.

Chris.

sammyh

iTrader: (1)

Have 1.44 bar on mine most days, on cold days it can hit 1.55

Sti_Lad

That weird as mine peaks v briefly (split ssecond)
at like 1.4 bar but its more a spike than anything and then seems to run at like 1.25 bar and thats it.

Maybe i should try getting more hear people runnin 1.4 bar just not me!

Ex_Pug

Mine peaks very occasionally to 1.4 also, but mainly 1.3 to 1.35.