sjwdavies

I'm thinking of getting a new exhaust for my Classic, MY95 WRX.

It's got a Kakimoto exhaust on it, and i'm happy with it but I'm thinking of getting a Blitz Nur Spec..... is the swap worth it?

Are Kakimoto any good?

Are Blitz Nur Spec any good?

Cheers.

Tidgy

blitz nur spec are good, very very loud though, never heard of kakimoto

Bat-Fink

kakimoto certain the fit em on CTRs

Daveo

Kakimoto are a reputable Jap exhaust maker. If it's a 3" system, I wouldn't bother changing. Spend the money elsewhere.

Dave

sjwdavies

I think it is a 3inch system. Looking underneath the car the exhaust pipe runnin under the car is HUGE! What else you reckon I spend my money on?

scoobfan

Kakimoto are very good, if it's one of their Titanium systems forget swapping.

Rob

fulla

kakimoto are up there with the best,i have one fitted along with a hks downpipe and a set of headers sounds great.cant fault them as said in the previous posts spend your money on something else.

Daveo

You could try improving the breathing, a decent panel filter if you're running a standard airbox, or a KN type filter if running an induction filter. Or strethching a little further, an Apexi Power FC ecu and remap. The Apexi would be a fine investment and would handle any future modifications you might make (with further remaps).

Dave

Jay_bee

iTrader: (1)

Another vote for Kakimoto, good kit with a bit of rarity value

sjwdavies

Cheers for the comments guys.

I'm new to the scooby tuning scene, so sorry if i sound stupid but what's an Apexi Power FC ecu and remap?

Jay_bee

iTrader: (1)

You do know what an ecu is though right?

scoobfan

An Apexi is a total replacement ECU (Engine Control Unit), it controls the cars timing and fueling.

Basically, you remove your old unit and replace it with the Apexi.

It's mainly used on the earlier cars, which can't be remapped (I'll come to that in a mo), such as your my95.

Ok, a remap is where someone with a laptop and the know how changes the fueling and timing parameters of your ECU.

This is done to achieve power and torque but also better drivibility and in most cases improved fuel consumption (A bonus with the Impreza).

Also any decent mapper will build in a decent safety margin so as your car is not running on the limit.

Hope that helps

Rob

scoobfan

No shame if he don't !

Rob

sjwdavies

Cheers for this.

Yeah, I know what an ECU is and sort of what an Apexi Power FC is.

You say MY95 can't be remapped? But it can be chipped right?

How much will something like this cost me, including installation?

What sort of bhp increases will it give?

Thanks guys.

GC8

'Chipped' is a meaningless euphamism. The ECU's parameters/settings cant be altered on earlier cars. Devices which interfere with the ECU's input/output can be bodged on but youd be better replacing the ECU with an A'PEXi.

Simon

Jap Import

Hear, Hear.

Waste of cash IMO

Jay_bee

iTrader: (1)

No sh*t!

I was trying to establish his level of knowledge before I typed out some info for him. There would be no point in me explaining what an ecu was if he already knew the basic principle of what it is (not how it works or anything).

Anyway, there you go

fulla

so would you say a scooby ecu or a esl chip was useless and a waste of money and could damage your car??
my understanding was that these were mapped for the earlier models,fair enough they are not individualy mapped and a apexi ecu is far superior but can cost 4x the price.In my eyes its only worth getting an apexi if you plan to change injectors,turbo ect so you can unleash its full potential.
I run a 96 wrx with full decat,headers,sti top mount and induction mods with a scott t scooby ecu.It feels much better with the chip and i am happy with the power,another point to consider,how much will the standard internals take?,so in my eyes a apexi ecu is only worth having if you are searching for big power gains and have a large wallet!!

GC8

In order not to overly-complicate matters I wasnt mentioning ScoobyECUs or their newer competitors. My bodged comment refered to 'piggy-back' devices only...

If Scott was still offering ScoobyECUs at £75 Id have his arm off


Simon

ESL

'apexi ecu is far superior' (to scoobyecu or esl board)

An apexi does not have closed loop knock control or boost control unless you buy the boost control kit for an extra £200, taking the bill (fitted and mapped) to about £1000.

Retaining the original ECU and using one of my boards or Scotts chips will allow the retention of these important facilities as well as the factories cold start compensations, etc.

GC8

Andy; what sort of output can you achieve on a C-Series 'Wagon running a TD04 with a 3B/9B ECU ? Would someone be better off fitting a C-Series Saloon (Z4) ECU; as I have heard that 'Wagon ECUs dont perform particularly well?

Simon

ESL

A Z4 will have boost target and solenoid duty values applicable to a TD05 turbo. Using one on a TD04 equipped car will cause midrange overboost due to the lack of engine speed value groupings about the turbo spool up range. So it isn't advisable (at all).

For a graphical illustration, download my software at http://www.enduringsolutions.co.uk/software/
and compare example files 1C, an A series TD04 map and the Z4, 260PS TD05 C-series map.

Rolling Road outputs (if thats what you mean) are dependant on so many variables it isn't easy to quote a single figure, and they aren't the best indicator of driveability. IMHO comparative in gear acceleration times are a better (and more readily obtainable) guide when tuning.

GC8

Does your kit not override all of the ECUs values then? I think that we are talking at slightly crossed purposes. The two options that Im considering are:

(i) A Z4 and a TD05 (which in effect will give me an STI V2 'Wagon)
(ii) An ESL board with my existing ECU

The costs are similar; it may cost a little more for your kit but Id hope to see a bit more for it and the car will be nicer to drive. Im concerned that my ECU isnt particularly suitable though, although I cant find the article/post where the issue is explained (I think that the ECU in question wouldnt hold boost properly, but Im not certain).

What sort of output would you expect to achieve from a C-Series 'Wagon?


Simon

ESL

Hi Simon

I read your previous post as fitting a Z4 to a TD04 car which as you know is a bad idea.

Any pre Aug 96 ECU will do as they are all much of a muchness, the code is replaced along with all the map values so the all the contents of the on board ROM are bypassed. Borat52 on this board is running a wrx wagon with a TD05 and ESL chip with good results. All those upgrading from a Z4 to ESL have reported an increase in performance, as have those with the 6K (275PS STi2 Map, I cant help wondering why these arent more popular than Z4s as an upgrade, given Z4s seem as popular as they are).

A peak power output simply tells you how much speed the engine can run with a reasonable level of torque. It can have zero drive quality and a massive output if peak power is your thing, but its not my main mapping criteria.

Advantages the ESL chip will give are extra boost, less advance to alleviate the need for O.B., earlier spoolup, removal of the vehicle speed limiter (though this is already worked around in vehicles with the reduction gear on the speedo drive) and better cruise economy, depending on what map you've come from.

ESL equipped cars like my TD05 93WRX made 286bhp at PTS, yesterday Rays STi1 made 309bhp (on Sainsburys 97SUL :-O) at Dastek but I've heard of a large spread of results with some not holding boost on rollers and making peak at 5.3k!!!, even one where the run was terminated due to the car 'not fuelling properly'. We fitted a wideband, took it out on the road and low and behold, AFRs at 10.8:1 and car is running sweetly, subsequently made 285 at a different RR day with no changes made. As you can see, the massive variance of outputs from exactly the same car at different roads makes it very difficult to quote an absolute figure.

Another Subaru specialist RR operator recently told a customer to get me to remap no richer than 12:1 AFR! I'll happily take fuel out to 11:1 on a postal map, but 12:1 is risky IMHO without full diagnostics and a custom setup to see how det resistant the car is.

The priority with the postal map is 1.1bar on a TD05 in safety, if I'm custom mapping then generally I can take out a little more fuel and add a couple of degrees ignition, but I have to allow a reasonable margin when I don't get to see the car and have to assume that Tesco99SUL isnt necessarily always being used.

If you know what you are doing you can happily specify any map you want using the free software and I'll send it to you on 2 PLCC32 EPROMs that will fit my board.

HTH

Best to email me for further questions at service@enduringsolutions.com as I don't get much time to look at the forums, only reason am here is cos I've got man-flu and I've got to drag myself out of the pit now and get to work.

Best Regards,

Andy
ESL