Linksfahrer

Nice to see you have a good result.

Its interesting how the torque to boost arrives and that seems in early and building strongly.

What was the Air temperature when you did this run ?
what fuel was in the tank ?

regards Ralph

boosted

I dare say it would of made 400+ with a big turbo. But that's not what I wanted, hitting hard and early with good torque was the plan. Anything 2.0 and 400hp will be horrible to drive daily, lag monster.

boosted

Yeah, 340lbft at 4250rpm, I specifically asked for a boost spike of 1.6 bar and then taper off UK the revs. I like the shove of the high boost in first get as you roll on the throttle (although it just wheelspins in the wet &#128514
Was about 20 degrees ambient temp, quite hot for Scotland!
Fuel was V power.
I mentioned to Andy that I had 90 litres of methanol in the shed, he said I would be ok tossing upto 5% in the tank with this tune, so that's what I'll start doing on my weekly fill.

mikeblackett

Good results, I bet your pleased and more importantly it's drive able,

boosted

Yeah, not really had a chance to "test" it too much, the long drive home was more a 70mph cruise than a race. Plus it was wet.
Although it does feel strong in fourth when the boost ramps up!

ScottyPPP

Nice results. Was that on the road or rollers? Doesn't seem much difference over a normal 16G? Torque looks great for a 2.0 though.

boosted

Scottish bhp on the road. It was set to make more power but the pull was aborted at 5800, cel came up apparently.
Code cleared (was cam sensor fault) not came back on.
I'm happy with the torque and power it makes, gives a good shove at 3400 as the boost comes in (circa 1.6 bar) then pulls well all the way to 7k.

ScottyPPP

Yeah, its about the same as mine on a road dyno so I should think it goes pretty well if mine is anything to go by .

bludgod

iTrader: (3)

wouldn't be worried about an odd cam sensor fault, quite common for it to go off at higher RPM's. Could be the crank sensor though - if the two all out of sync you'll get the cel, you can try swapping them round if it comes back.

boosted

Yeah it's not worrying me! I'll cross that bridge if I come to it.
Tossed 5% methanol in today upon filling it. My 11.3:1 AFR is now up at 11.7 ish. Can't say it feels any quicker, but who would know.

boosted

Was at the dragstrip yesterday managed a 13.18 @ 103mph with a 1.85 60ft. I just don't think there is a 12.99 in the car, it needs more power to push it over the edge. This was done with a full weight car, spare wheel and jack in the boot the lot. I dare say it would be quicker if I start pulling bits off it, but then that's not the car I drive on the road is it? Also I wanted a direct back to back comparison to my last run without the remap.
I am however Lookjng to change my wheels from 18" to std wrx 17" I feel the weight saving may have some benefit? Anyway here is the times for the day, I've yet to weigh my car.

bludgod

iTrader: (3)

im not sure that just adding meth to the tank will do much on it's own unless the map was adjusted for it. The perks are generally you can run higher timing once you adjust the fuel target back to where it should be (set the fuel target richer in the map or increase the fuel pressure if you have an FPR) so you get more output. It would only really boost you on it's own if your map is already trying to get more timing than you can run.

Might be worth checking with/without the meth even a few virtual dyno runs or logging runs (look for fine learning knock correction and feedback knock correction and/or ignition total timing) just to make sure that adding it in is worthwhile.

Tidgy

sure its not a case of you can't drive for ****? lol

sorry couldn't resist. any other comparable cars as a target time?

boosted

Lol, 1.85 60 foot says I can drive just fine! Also my personal best of 12.52 with a 1700kg golf confirms this too! My impreza just doesn't have the power

boosted

It was andy that suggested to put the meth in, suggesting that it will lean it off safely (increased knock resistance of the meth) this making more power. Leans it off about .3 of an AFR.
Car feel livleyer with a whiff of methanol in there. We aren't speaking massive amounts

ScottyPPP

Need some tips from RS Matt

boosted

Ha! Not sure any amount of tips will make the car faster! I tried several teqniques and all in my runs were pretty consistent id say. Bogged down on one launch and missed 4th on another, both reflected in my times above. I don't think 13.1 is bad for a full weight road car?

Shaun

Boosted,
Great thread!

Some advice for you......

When I was running similar power to you, albeit in a SPEC C, I was seeing low 12's. Weight saving aside, you really need to work on your 60ft times imo. It's all about the traction off the line.

1.85s to 60ft is not all that great imo. I was consistently hitting 1.6s in my SPEC C, but you need good tyres, square chassis setup and monitored tyre pressures.

IF you shaved (let's say) .25s off your 60ft, all things being equal, you could see your ET drop to 12.68. IMO this is where you should be, if your car has the power the road dyno figures are suggesting.

Good luck!

boosted

I think your probably right, although the dragstrip I race on is 60 year old Tarmac and completely unprepared, traction is a major issue for everyone. I don't have £500 to spend on tyres at the minute, too busy spending money renovating my house and my second baby is due next week, lucky to have the impreza to be honest, some people couldn't even afford that.

RS_Matt

I agree with that.

My 0-60 foot was the quickest of the day when I last took Billy to the drag strip, that included a 700bhp+ Imp.

Even at 330/307 I got a little bit of wheel spin and the car snaked a tad. On the road I rarely keep it flawed past the speed limit, way too scary.

Impreza for me is just about being planted in the seats in 1st and 2nd. Fast Cornering and top speed are a big no no.

boosted

Wee bit of an update, second baby girl was born last week, so been busy with that.
Bought some std WRX wheels that are a lot lighter than my 18" ones, gave them a tart up. Going to put some uniroyal rainsport 3's on them at end of month.

Also pulled te gearbox and changed the clutch to the later 4.2 RS4 one I've had for ages, along with the new flywheel I made to suit. I've yet to road test the car (today hopefully).





Also bought a billet compressor wheel for my turbo in a hope of making it I bit more effecient and possibly flow a smudge more air (my one is worn and seen better days). Scotty's fault!

ScottyPPP

Nice work. Need to sort my wheels out as they're looking a bit ****ty.

Linksfahrer

The point about the rolling mass is massive , on the flywheel and for every kilo saved on the wheels is worth 3 from the car. Id like to see which of the 17 inch ones are lightest (anyone have a table of weights ?)
Apart from the Std Enkei you have, Im guessing the Speedline ones are good too.

As I prefer twisty bits to straights , Im looking for a good set of light 17's 5 x100's as I think the steering handling benifits from it , the gyroscopic effect is reduced with weight reduction and the unsprung weight reduction helps the suspension iron out the bumps.

Congrats on the new born , so now you have a real reason to be up late at night , Get yourself a baby phone and you can kid your wife that you have no problem getting from the garage to the cot before she wakes up

boosted

Thanks mate, that's two daughters now! Think that will do me! ✂️🍒
RS4 clutch is ace, What a joy to drive normally!
I read that 2kg on each wheel (18" to 17") is worth .1 on the 1/4 mile

boosted

Anyone interested in a flywheel and clutch solution for the audi box? I would sell my first flywheel with paddle clutch and cover, speedo drive ring, flywheel bolts etc, £100 plus postage? I also have an adaptor plate that has some holes drilled in the wrong place, could be plugged up and re drilled, I'll throw that in too.

joz8968

iTrader: (13)

boosted

Lol!
So I've bought my Christmas! Here it is, billet extended tip exta tall big 16g compressor wheel. The aim is to fit this and water/meth injection early next year and get a map tweake. Hoping for a bit more power and no loss in spool. Be nice to crack the 12's!
Also have some bits (flywheel, clutch etc) up for sale in the for sale section, at bargain price (£100!).




Parts for sale (see for sale section)

ScottyPPP

Shiny goodness

boosted

Indeed! I wonder how much more it will flow over my cast wheel? your right, the hub is even smaller than my evo3 one, by 1mm in fact.
Certainly the blade profile, height of the inducer and extended tip should do something in terms of flow and spool, quite what they will do I don't know!

ScottyPPP

Fitted this yet?