chet123

iTrader: (7)

225/45 are standard fitments for my 17's mate. Plus you cant get the veds with 225/40/17 only 14,16,18,19.

Cant wait to get these on as the current Toyo's have so little thread now.

As always Giles good feedback on the Conti's in comparison to the veds though.

My car always made power but not as much according to the dyno figures.
Now that FB has had his hand on it and with the plugs changed its whole lot better and the car feels like it is running/performing how it should.

Hummm 20g tempting - I would only consider it if i went with a FMIC which im not. I'm going to maximise my top mount which are always good for 400+, if not more...then will come an 18G.

I knew the SC42 was on the cards. You are going to have so much fun now!

jura11

iTrader: (7)

Vredstein Ultrac Sessanta we are running and they're great,good choice



Jura

MrNoisy

iTrader: (28)

Ah you have Rich working on the car?
Good choice, he did my clutch - top bloke, clearly knows his stuff
I had the 20g on my TMIC and it was savage - the only reason I went FMIC was because my TMIC was mullered, really wasn't great.
We couldn't get more than 355/315 out of it. Went to Japspeed FMIC - instantly 382/340.
A decent standard STI TMIC would be a different story.
The 20g's previous owner made 376bhp on his TMIC, and I know Steve (The Gimp) made close to 400 or just over on his too - go on, you know it makes sense

TBH part of me is tempted to find a decent TMIC and stick with the same turbo as it would make a weapon of a road car, probably with more torque as well, but the SC42 proved too tempting!

ScoobyDoo69

iTrader: (17)

I for one will be keeping the TMIC for as long as possible. I'm sure if I swapped to a FMIC I could crack 400 on my current VF43 set up... I just really don't like the idea of all that pipework!

MrNoisy

iTrader: (28)

You probably would do if you added a meth mix mate, otherwise that turbo won't see 400.
Pipework isn't as bad as you think tbh - I personally felt it made the power delivery a lot more linear and manageable on a FMIC as opposed to the TMIC - makes the car more bearable with bigger power, but certainly 380-400bhp on a TMIC will be a great point to point weapon on the road.

ScoobyDoo69

iTrader: (17)

I am running meth 391bhp/361lbft

MrNoisy

iTrader: (28)

Nice figures chap, bet that flies

ScoobyDoo69

iTrader: (17)

Thanks, it certainly feels good. Need to get it down the 1/4 mile again as my last time of 12.1 @ 113mph was with my VF35.

Meth does wonders

chet123

iTrader: (7)

Giles - Kosta (scoobydoo69) has a type uk the same as us but running meth and with similar mods. I couldn't believe it when I saw 391/361 from a vf48 and still on a tmic

ScoobyDoo69

iTrader: (17)

I reckon a stronger actuator and a bit of porting on the exhaust housing would see a bit more power too. Great turbo the VF43. Really surprised me

MrNoisy

iTrader: (28)

Yeah that is good. Personally I'm staying away from meth due to a mate who had a crash and car nearly caught fire - and he had meth in the back....

However, that said, I know the previous owner of my turbo got 396bhp out of it on a meth mix - 18% IIRC.

I chatted to Simon (JGM) about meth and he reckoned it would be worth 30-40 ft/lbs alone, which is a massive increase when you think about it.
If mine's doing 382/340 on Momentum with a FMIC, I'd expect 400+ with about 370/380 ft/lbs on meth, but at present I'm sticking with standard fuel. I'm just not lucky when it comes to mods lol.

ScoobyDoo69

iTrader: (17)

Nothing wrong with 380 odd from a 20G on Momentum, in fact that's great power, and no faffing with meth.

Have you a dyno plot we can compare?

MrNoisy

iTrader: (28)

Yes, it's in my garage
Linked to it though - here you go:

ScoobyDoo69

iTrader: (17)

Nice curve there, seems to die a bit at 6300ish rpm though?

This is my graph, overlay VF35 vs VF43 comparison. Both on 20% meth on my car. Everything else exactly the same except there was 2 years and around 12-15000miles between them lol. Was mapped on a dead NPS, but the run was with a replacement (10min before the dyno run) - so not sure if a bit more can be gained in the middle.

VF43 deliberately held back low down so I could have more up top as it suits my driving style better

ScoobyDoo69

iTrader: (17)

Saw this in mine when I changed my NPS... quite tempted to change the centre section as it looked a bit worse for wear and as you say, a bit restrictive!

MrNoisy

iTrader: (28)

Nice!
The meth will definitely help you with earlier spool and holding the power toward the top end where mine tails off.

But...every turbo is different of course; I suspect mine might see a bit more with some light porting of the penny valve housing; I do get a little bit of surge toward the top end but not much.

Mine was actually rebuilt by AET - it was a TD05 20g bought by a member on here and was knackered - thankfully for him he has a good relationship with AET so they rebuilt it for him, and (found the graph on my phone) it made 396/380 on a STI TMIC with 20% meth!

I don't have a billet wheel or anything and I'm running Harvey ported and wrapped headers and up pipe, but have a set of GT Spec Gen 2 headers and 3 bolt harvey up pipe waiting to go on with the SC42.

I'm hoping that these additional mods will give me more mid and top end, with earlier spool. TBH though spool really isn't that bad even in current guise - people who say FMIC's are "laggy" are just in the wrong gear

ScoobyDoo69

iTrader: (17)

Yeah this VF43 is completely standard also, I wish I had it ported before hand, but at least I can now directly compare to a completely standard VF35.

Given that he made 396bhp with 20% meth and you're making 382 on Momentum, I would say your setup is working rather well.

I'm the same, Harvey ported headers and up pipe. Great combo!

From what I understand it's not the added "lag" or boost threshold, but the between gear shifts, lifting off throttle etc again as the pipes need to be filled with boost again, that makes it feel a bit more lethargic than say with the TMIC. However, I run a blanked off DV, so maybe that would help on a FMIC more? I've always said if I go FMIC, I will go rotated inlet etc.

chet123

iTrader: (7)

well lads the Subaru's now rolling on a new set of skates. The vreds are on and only with first hand experience- impressed.

I've also just had my KM insurance renewel come through - another January hit.

MrNoisy

iTrader: (28)

LOL - mate, trust me, I've had a similar year.
Got engaged in November, then needed a new clutch.

Then I got ill and decided that it was a great idea whilst at home with flu, internet and a credit card to buy an SC42

Needless to say my credit card has taken a hammering year!

funkmasterjay

Is it just me or is your car running really lean?

sssssteeeee

312 bhp at fly 290 ftlb 5000 rpm 1.4 boost on v power
is that about okish? engine has 88k under its belt. vf34 - alcatek ecu plus various other mods.

MrNoisy

iTrader: (28)

Ste, see you found the thread mate

Who mapped your ECU mate?
On a *good* vf34 I'd have expected to have seen at least 340bhp on that setup.

I'd check for boost leaks, blowing headers / up pipe, and leaks in your inlet hose.

That aside, I'd say it's compression test time
Chet, any progress with yours mate?

MrNoisy

iTrader: (28)

Chet, just in case you're tempted, the 20g and my Harvey up pipe and headers are now for sale here:
https://www.scoobynet.com/subaru-par...e-package.html

MrNoisy

iTrader: (28)

Well chet, car finally made it into the 400's yesterday, running 412/365 on an SC42.

The Viper inlet hose I have needs to be swapped for one with slightly more of a bend in it around the inlet at the turbo end as the SC42 is a bigger turbo and sits slightly further toward the driver's side - because of this, the inlet manifold edge nudges the hose end in ever so slightly constricting the air flow on the drivers side.

I also need to cut out the slip joint section of my revolution centre section and weld on a 3" flange to get optimum flow.

Simon reckons I should see around 420/375-80 with those mods.

And that's on ECUTek not an aftermarket ECU.
Goes BLOODY fast

chet123

iTrader: (7)

Hey Giles good to hear that you've reached your goal. The turbo must be ballistic with your setup. I've read the SC42 are the best in its class so good choice. Once you've sort out all the little issues which would see you about 420/375 you will running the exact power the turbo was designed for.

You'll have to take me for a spin.

Your the one man I know who started modifying bits at a time to see how the performance would compare. Having simliar UK Spec cars its nice to see what you and others have done and accomplished.

Well done mate - now go enjoy it.

chet123

iTrader: (7)

no further developments from me - just enjoying it when I can.
I only have one future upgrade planned and we all know what that will be...whoop whooop.

Blocks85

@chet123
In regards to your posts on the 1st page about your cars power after a remap and saying its low.
I sort of think its normal considering it 265 out the box.
Mine made identical figures to yours @ ENGINTUNER of
317/310 @ 1.5 bar.

I had it back down ENGINTUNER 2 weeks ago with martyn and it then made 352/360 @1.3bar after adding these mods-
Ported my vf35 (by BIG D)
Forge actuator set to 1 bar base
Forge big port dump valve with red spring
silicone intake pipe(inlet set up by big d to eliminate surge)
RAMAIR induction kit
HRC 340 fuel pump
Lambda sensor moved to down pipe
Wrapped japspeed de cat down pipe
Wrapped/ ported japspeed headers
eBay front mount intercooler
Thermal intel spacers.


Many thbaks Chris

Blocks85

The graph are first re map and last re map overlapped

MrNoisy

iTrader: (28)

I'd say there was something pretty seriously wrong with part of your old setup Blocks - that first graph is all over the shop!
It's a good result for a vf35 but I'd imagine the biggest part of the increase in power will be down to the FMIC so it's likely your top mount intercooler was shafted like mine.
Mine gained 30bhp and 30ft/lbs when I changed from the standard TMIC to a Japspeed FMIC.

@Chet - thanks mate, the car's going very well now.
I still intend to change the hose to a Perrin one as it's slightly more free flowing, and that's all purchased and waiting to be fitted. Charlie @ SRR reckons there's easily 420bhp to come from the engine and turbo.
I'm also going to go with an Alcatek ECU as I've been offered one at a very good price and the Alcatek's have less of a habit of pulling out timing than the Denso ECU's.

Both my old car and my current car went back for a dyno day, and after the initial run of 412, my car only made 395 on that day, and had lost about 15 ft/lbs as well - in the space of 4 days!
In contrast, my mate who runs an Alcatek had lost just 8 bhp in comparison to his original run nearly 9 months ago so there's quite a difference there.

Similarly, my old car which is now owned by another member in our local Berkshire Scoobies club (a bug WRX with VF35, STI top mount and Harvey up pipe) had a TGV delete done last year and made 350/350 (really good result), but only made 320'ish on the dyno day so evidently the denso's are a bit more temperamental.

The Alcatek's are also slightly quicker to respond and pickup to input, and you can run dual maps, so I'm thinking why not, you only live once

Also managed to pick up one of the roll centre correction kits and drop links on the Indigo GT group buy so going to have them fitted soon too.
Once that's done the car will be "nearly" finished - just want to have the front bumper resprayed and a couple of bonnet dings tidied up and then she'll look mint

chet123

iTrader: (7)

Hi Chris,

Thats really good for a vf35. What car do you have?
Who is Big D?
I suspect the front mount, RAMAIR Induction, Intake pipe and porting of the turbo gave you the bit more maximisation of BHP.

All in all your torque is really good as is the bhp.