Overjoyed with my sc46 Kev ,
Now with new clutch spinning the wheels up a treat

 

JDM STI Blob onwards are twinscroll, Bugs are single scroll

 

Ah cheers gazz

 

What torque did you get?

My car spins all four wheels in the damp it's absolutely cracking


Kev does this new housing flow any better than the original IHI housing?

 

Hi,

dont know yet, waiting for a victim.

They are nicely ported though, top quality finish where it counts.

cheers
Kev

 

Dont mess about Kev, set up on mine is cracking as it is!!
However if you did want to try it on mine back to back to give you an idea your more than welcome to

 

Not sure on torque, I'll get the graph up I've got it somewhere

 

Hi guys, what was the full list of mods on this car? Thanks.

 

Hi,

standard STI 8 with SC42 Billet, K&N ind kit, Syvecs ECU and a set of GT spec headers.

Car was already fitted with an uprated fuel pump and a de cat exhaust system, arnt they all.

Customer reported a massive hike in power, words like "bonkers quick" and "cannot believe the difference" were used, as a bonus the car is far more economical on cruise using less fuel on his trip from here to Norfolk which he does weekly.

Cheers
Kev

 

Great result allround,and another happy customer of the amazing SC42 billet turbo.

 

Just a quick question for they tech guys.why do some people run in 3rd gear with 6 speeds and some in 4th?does it affect power in any way?

 

makes very little difference..

have run a car is 4th and then redone the gearing info and run it in 3rd and power was within 1hp.. Sometimes find with a reasonable high powered car or one that comes in particularly hard it will wheel spin in 3rd.

4th has more load so tend to find you have less adjustment to do to the higher gears on the road after, but 3rd is over quicker so stresses the engine less in theory.. also depends what ratio 6speed... the hawk/forester/hatch gearing is similar to a 5spd uk 3rd gear in 3rd.

Simon

 

 

Are the sc42 twinscroll turbos 58mm inlet?

 

I'll try again

 

As you know Simon my car with 6 speed fitted spun the wheels badly in 3rd gear on the rollers when we mapped and had to have the straps tightened 3 times to stop it,it was down so tight it looked like there was a body in the boot and even kev commented how low in the rollers the car looked when he came for a look.

Would running the car in 4th have helped and does the aggressive strapping down of the car skew the results,as running with loose straps is commonly known to give a higher than normal figure.

My 6 speed is a 2005 DCCD WR1 box which has the closer ratio JDM 1st to 4th gears and uk 5th and 6th gears,or so im led to believe.

 

I always map in as higher gear as possible.

1) because when I tweak on the road I don't fancy doing 150mph to check the map

2) higher loading on the engine will show up det, turbo spool control and duty numbers and any other problems

3) straps don't need to be so tight so less mechanical friction and stress

Power should be the same in all gears on a Dyno dynamics. Dyno is most accurate between 30mph-120mph roller speed.

I try and map rally cars in 5th gear if they aren't too long geared.

Graham

 

Hi,

we are not offering upgrades at the moment and to be fair your version one GT35 Billet has proven its potential.

If you want the latest version of the billet wheel we have them in stock, there will be plenty takers for your original one I am sure.

Price is still the same as they were when introduced at £1225.00 + vat.

Cheers
Kev

 

All pre hawkeye UK boxes have the same ratios, just that the WR1 was the first UK car to get DCCD

 

WR1 is MY04 too...I have WR1 heads on my build

 

Graph as promised.


Bearing in mind this is only at 1.45bar! The potential for 500bhp is there.

 

It was dont in 4th last time (first time on 6spd). Comment field might not have been updated though.

 

V nice at 1.45

 

Yeah def shows 3rd gear on the graph mate,so it was in 4th and stil spinning like that ,know wonder i cant get traction on the road.

 

What tyres do you run? I've run my car at 800+ on the rollers without wheelspin and I'm pretty sure its lighter than yours!

 

Hi,

we have worn out the rear rollers for the second time, hence the slipping issue.

New rollers here and ready to install, £3500.00. ouch.

cheers
Kev

 

Hi,

sorry missed this question, they are all standard size inlets for a true direct fit.

cheers
Kev

 

No it was spinning in 3rd so we chsnged to 4th and I dont think the comment was chsnged.

It was -2 and the tyres were damp also.

 

Cheers Kev i didnt know about the worn rollers

Simon thanks for clearing up the gearing issue

NOW BACK TO KEV`S TURBO`S

 

Kev, what's the A/R, and also the cm^2 area of each of the 2 entry ports of the 'first gen' SC42 Billet Twin Scroll? And also, the same Qs for the super duper new SC42 B/T.S.?

Also the same Qs for the SC46 Billet T.S.?