juggers

iTrader: (1)

What do i need to take a jdm 06 spec c to 400bhp/400ltb

I am more concerned about torque then bhp

I want that 400ltb of torque.
Do cams make much difference on the subaru's?

My shopping list so far is

uprated ecu
3 inch tb exhaust
cai kit

uprated pistons and conrods????

Can i get 400ltb with out changing the rods and pistons?

ex-webby

To get 400/400 on a twin scroll system will require a turbo change that will in effect change your lowdown response that you currently have, affecting driveability...... if this is not a concern then it is possible.

IMHO 400/400 on the standard rods and pistons is borderline. By this, I mean the reliability of such items may be questioned long term.

Please think about figure chasing though....... I currently have 370-380bhp / 360 lbft. For a newage, the car is very fast on the road. These figures have been attained by doing a lot of testing etc, but ultimately is on a standard engine (with standard top mount), K&N panel filter, 3" decat, ECUTEK and hybrid twin scroll turbo, all mapped for just Optimax. I have not had one problem with the engine at all, and it has now covered over 6k miles at this power level and completed a number of competition events on track. Having the car mapped for Octane Boosters would push these figures up again..... but for me that wasn't the way I wanted to go.

Regards,
Shaun.

Trout

iTrader: (1)

Shaun,

have you tried remapping it since the secret new Snottymax has emerged.

Mine has been flying since filling up with the latest batch of Optimax at the weekend. It is certainly as quick as I would ever need a road car to be (famous last words!!)

Rannoch (MY06 Spec C with an estimated 350bhp/340lbs)

The Chief

I'm not sure thats strictly true Shaun, (having a bigger turbo) My buddys Spec C is pushing 398 and over 400lbs torque on standard internals and turbo afaik. but i could do with checking - plus you do have the situation of rolling roads over reading.

I'll try and find out - What dale does not know about Spec C's is not worth knowing about.

If i'm wrong then i'll bow down and beg for forgiveness

ex-webby

Rannoch,
Not yet no. All this will be taken care of, with the next round of modifications.

The Chief,
Put it this way..... your mates Spec C (with standard engine, turbo), wouldnt run that power on Powerstations Rolling Road (which my figures I quote are based on).

To get 400ftlbs out of a standard twin scroll turbo (or even my hybrid) would require a shedload more boost than I run.... and I run a fair amount (in fact I dont think the turbo would ever make the boost to run that level). I ran 1.8bar peak when we were testing and didnt get near 400ftlb.

Regards,
Shaun.

ex-webby

Rannoch,

Another point, is that I dont feel comfortable with remapping MY car for the new Optimax until I know specifically what the octane level is and even then I may thing twice.

If it is a clear 2 ron (or more) higher than normal Optimax, what happens when you can't get hold of Optimax (which can be hard when travelling). You either have to use Octane Boosters, or you have to put in normal SUL, which may be a fair bit lower ron rating and cause you issues with pulling the ECU right back and even then may still cause the onset of DET. Not specifically knowing how much the ECU can compensate I am not entirely sure.... but if you are running fairly high boost and mapped to that on a specific fuel grade, going back 2ron is a fair amount (I already pick up more noise, switching between zero noise with the old optimax compared to BP SUL).

Just a thought.

Regards,
Shaun.

juggers

iTrader: (1)

What turbo would i require?

and do i go for a bigger tmic or fmic?

The Chief

These are the figures when he did the rolling rd in Feb - he has had it remapped since by Andy F - liek i said as far as i know it has a standard turbo - but i may be wrong plus there is the possibility of the rolling rd being a little optimistic. but here are the figures...

ex-webby

Juggers,

It is imperative that you state if you want to keep the awesome lowdown response of the standard or stage 1 hyrbid twin scroll, before you would think about Turbo type and/or intercooling?

If you don't car about response.... it is easier and simplier to go for a single scroll turbo to be confident of busting the 400 barrier (imho), but this would mean changing the exhaust manifold/up-pipe and downpipe. If this was the way you wanted to go, then you would also go for a fmic to help it along (but again, you will sacrifice spool up).

In my honest opinion...... the above is not worth it for an extra few peak bhp over what a hyrbid twin scroll can provide on spool up. If you were looking for well over 400bhp, then yes, for a 2ltr go the single scroll route.

Regards,
Shaun.

juggers

iTrader: (1)

I dont want to loose the low down response!!

ex-webby

The Chief,

Good figures..... but like I said, not on a standard turbo. Just to highlight this.... the PE fairly big Hybrid (certainly bigger than mine) turbo (twin scroll - but loses the lowdown response) struggles to make 400bhp.

Regards,
Shaun.

ex-webby

Juggers,

Ok....

Personally..... for a cost effective solution choose the following:

Uprated panel filter
3" Decat
ECUTEK
TD Hybrid Stage 1 Twin Scroll turbo (on exchange)

Your going to be talking about £2k for that. Speak to PowerStation as all the work that was done on my car regarding this stage of tune and developing it was done with them.

You can also read about the Stage 1 of this in the Newage Modifications thread in the Article Forum (this does not include the turbo article though as that is still to be produced for showing on the forum).

With the help of this conversion, this car won the ScoobyNet Live Handling Circuit and has already acheived a 12.5s 1/4 & 1.6s 60ft down the strip (with more to come)...... so it certainly does all work.

I don't care what figures a rolling road shows me..... this car is awesomely quick on the road (and I have owned 500+bhp cars before, so fully appreciate what "quick" is).

Regards,
Shaun.

The Chief

An interestin story Dale told me once. He took it to a rolling rd with a club that shall remain nameless ands basically he turned up and trounced everyone. anyway they were all spitting there dummies out because some of the cars were not pumping out as much as they hoped and were blaming the RR. yet Dales was off teh scale.

I asked Dale what his secret was and he told me the secret to big power is all the tiny and small little mods that people downt know about yet when added up make a significant difference.

I'm surprised you've not spoken to him at various drag events.

The silly g*t is going for 500+ next

ex-webby

Sorry, drag events were not my bag (prefer track).......... that was until I broke my hymen at TOTB this year after a very very long break.

I agree about the little things..... but unfortunately it all comes down to boost (air), fuel and ignition!

The Chief

Totally agree there.

mine is only an upstart where it comes to tuning my piddly little TD04 turbo - When Mr Forrest remapped my car i asked him should i be getting a bigger turbo, he replied that not really, although mine really runs out of puff at top end he said after the remap it will be a fairly rapid point to point car.
On runs out my 280bhp Classic easily stays with 350bhp new age STi's

People seem obsessed with chasing magical horsepower figures!!! better to have a quick driveable 320-380bhp machine than a 400+ machine with loads of lag - just my opinion.

juggers

iTrader: (1)

I've got a CAI kit
i have a 3 inch turbo back exhaust with 3 inch down pipe
I have gone for the Gems ecu

Where can i get a td hybrid turbo from? and how much will it cost?

The Chief

Anyway my 280bhp baby will do me for now

ex-webby

Speak to PowerStation about the turbo as it is spec'd by PowerStation and built by Turbo Dynamics. Cost.... can't remember off the top of my head..... but you would do it on exchange to keep cost minimal.

Regards,
Shaun.

ex-webby

Yeah..... thats what we all thought at one stage!

The slippery slope...........

GazTheHat

Is that right? Suspension mods??

Trout

iTrader: (1)

Now there is the basis of a multi-page thread debate if ever I saw one

The extra weight of the new age is more than amply compensated for with greater grip and chassis.

I suspect a genuine 350bhp on a new Sti would run rings around a genuine 280bhp on a classic (I have owned both and the newer car is definately quicker point to point).

Rannoch

Granby

iTrader: (5)

so so true

ex-webby

Mine holds a current speed/time record when being driven by employee's at PowerStation / Litchfield Imports around a test facility they use for car testing...... obviously we arnt talking about scoobs with the likes of the 450+bhp monsters here. But then I have spent a shedload on the handling side as well.

Power is nothing without control......... and of course a good driver (which counts me out).

Regards,
Shaun.

Moley

iTrader: (9)

Agreed, although a 300bhp classic with the right chassis mods (Whiteline etc) will certainly be right up there with a 350bhp newage

Neilo

assuming the newage doesnt have the same handling mods.....

you can make a 1.8 honda go faster round a track than a given other car...(as has been proven at time attack)

a decent suspension set up and an able driver with match most things on the road

The Chief

Oh aye but more important - driver ability


Anyway lets not deviate away from the original thread like i have

k_duraman

iTrader: (4)

what is a snottymax could someone explain?

ex-webby

lol

It means "Optimax" as in the fuel.



Regards,
Shaun.

Hol

iTrader: (1)

I think it equates to a rough 35bhp to cover the weight increase of the Newer car, as a rule of thumb.

(I certainly found this to be about right when comparing my old classic to (ahem!) 'big power' Evos, on track).

Id also be interested to see a standard twin scroll unit hit 400/400, as id like to be there too. Unlike Shaun im running a little but of NF as well, hence I have a nice square power/torque.

Also, like Shaun my car is very 'driveable' in its power delivery, although I think my Chassis requires a bit more 'planning' for the corners

In fact im thinking AST's instead of a bigger turbo now. Now point in having power when you can't use it.

Shaun, you talking your car to Trax?

Bob Rawle

Hol's car (my old one) is, I think at 377 and 374 currently on the std VF37 turbo, with a little encouragement to hold up boost at high revs it "could" do a bit more but I do think thats ringing its neck a bit.

bob