Cosworth Supercharger Owners Thread

[sly]

My wife's kind of the same way. The BRZ is rough, loud and raw feeling. I love it. She would much rather take our other car. I like to feel the connection to the road. She just wants to "get there".

[Greacemonkey]

Originally Posted by ajc209

It should be way more pokey at low rpms. At 2.5k it pulls very well even in 6th gear (manual)!

You do feel it start pulling a bit more at around 4k as peak torque is at 5.5-6k so it does build up to that a tad but it should be fairly flat. Cirtainly at 2.5k it pules quite well.

I find myself using alot of low revs when driving normally with the SC kit due to the low end torque. Its the main reason I chose the kit of the flatness of the torque curve vs a turbo or centrifugal SC.

Have a look at hte power graphs posted on the forums to see the flatness.

I will to do more test run this weekend but I don't feel it more nervous at 2.5k. I'll send my datalog to Matt too, might be things to tweak on the tune and after I'll dyno it. No regret on this mod tho, I drive it as usual and when I downshift to kick it, it way more violent hehe. I like the way the supercharge is so quiet and that the cooler in not noticeable behind the oem grill, FI sleeper! Exhaust changed a bit but at least it didn't got more loud, was kinda worried about that because the car was already loud as f**k. I can just recommend this great kit, love it!

[gtengr]

I picked up gahooligan's kit since it turns out he lives about an hour away. Just need to get some new intake gaskets and I'll finally have some FI! I'll be running the smaller pulley with Ace CS400 header.

[gahooligan]

Originally Posted by Greacemonkey

I will to do more test run this weekend but I don't feel it more nervous at 2.5k. I'll send my datalog to Matt too, might be things to tweak on the tune and after I'll dyno it. No regret on this mod tho, I drive it as usual and when I downshift to kick it, it way more violent hehe. I like the way the supercharge is so quiet and that the cooler in not noticeable behind the oem grill, FI sleeper! Exhaust changed a bit but at least it didn't got more loud, was kinda worried about that because the car was already loud as f**k. I can just recommend this great kit, love it!

I think the best thing is the pulls in 3rd and 4th between 3k and 5k. You really notice how much better the car is with the Cosworth!

Sent from my SM-N950U using Tapatalk

[weederr33]

Originally Posted by gtengr

I picked up gahooligan's kit since it turns out he lives about an hour away. Just need to get some new intake gaskets and I'll finally have some FI! I'll be running the smaller pulley with Ace CS400 header.

This is awesome news!

[Seba]

My impressions after about 300 km.
- definitely more torque especially on higher gears
- fuel consumption a bit higher then before FI, average 10,7/100km
- maybe its just me, but I think I can hear more supecharger whine when the oil temp reaches over 80 degrees Celsius
- max. oil temp 105 degrees Celsius during highway drive with average speed 150km/h
- more boxer rumble noise, i think
- haven't pushed it hard yet, but have to try.

[sly]

I put the larger fuel pump on yesterday. Prior to installing the pump, I noticed a very slight hesitation at wide open throttle under high gear. Probably was fuel starvation. The larger pump has fixed that. Now it's as smooth as can be.

I bought this pump: http://asnuusa.com/ASNU92-FP330E
The Velox Fuel Starvation Door: http://www.ft86speedfactory.com/velo...l#.W3wWENJKhEY
And a fuel pump install kit with wiring harness adapter and fuel sock: http://www.ft86speedfactory.com/dw-8...l#.W3wWbtJKhEY

There is a good install video here: [ame]https://www.youtube.com/watch?v=Wc8goq7vXLI[/ame]

The install was fairly simply and straight forward. Try to do this on an empty tank so you don't get fuel everywhere. The only problem I had was the video fails to mention that you need to make sure the flat gasket on the side of the fuel basket does not get pinched when reinstalling it. The gasket is a tight fit and can fold easily. If the gasket folds you will leak fuel everywhere.

[Seba]

Small update after 500 km.

Some of you have mentioned about small gain of power at low rpms.
I don't know how about you, but I have made a small trial today:

6th gear
100km/h (62mph) 2600rpm - 120km/h (74,6mph) 3100 rpm = 4,35 sek measured with iphone

My oil temp reached 108'C (226'F) during highway speeding 170 - 180 km/h, but dropped very fast do 95'C during regular drive.

Love this car even more now.

[sly]

It may be my imagining things, but I think the car has more power when you let it learn the throttle calibration slowly. After resetting the previous CELs, the car would lose its throttle calibration and have very low power upon initial restart. I would perform the throttle calibration which involves pressing the accelerator fully for 30 seconds, 3 times with the engine off. It then seemed to need at least one drive to fully warm the engine. Then shut the engine off. Restart it, and the car would have it's power back.

The last time I had to reset the CEL, I didn't have time to do any of this stuff as I had to go to work. So I reset the light, got in and drove it. It was a dog getting to work. Timings were retarded and the engine felt underpowered. When I got back to my car that night, I did a quick throttle calibration before I left. The car felt MUCH more responsive. I think the ECU needs the slow learning process to dial everything in perfectly. I now realize I NEED new tires. It will slip in any gear on wet roads.

As mentioned, this may all be in my head, it seems to perform better if you just get in it and drive it. Let the ECU learn on its own.

As for the Check Engine Lights... The car now seem much more sensitive than before to not fully tightening the gas cap. If it's not COMPLETELY tight I will get a CEL. I drove the car for about 2 years before the supercharger and never got a CEL and I know I may have not fully tightened it in the past. But now I get them occasionally whenever I stop for gas and don't absolutely snug the cap back down. It would be nice to have that code deleted all together so it doesn't happen again...

[Matt@Cosworth]

drop me a mail to my works address and I'll turn it off if you like

[mrg666]

Originally Posted by gtengr

I picked up gahooligan's kit since it turns out he lives about an hour away. Just need to get some new intake gaskets and I'll finally have some FI! I'll be running the smaller pulley with Ace CS400 header.

Finally! Congratulations!

[sly]

Originally Posted by Matt@Cosworth

drop me a mail to my works address and I'll turn it off if you like

Done. Thanks.

[sly]

Originally Posted by Matt@Cosworth

drop me a mail to my works address and I'll turn it off if you like

New Rom installed. So far works great. Just filled up today and no CEL. Also it seemed to learn ECU parameters a lot faster. Thanks.

[sly]

Just took the car for it's first real road trip. 6 hours one way and it was flawless. Interstate and back roads. Averaged 31mpg.