[benji04]

hey lads,
just wondering if anybody has had anything to do with forced performance turbos i am in the process of putting a 68HTA turbo on my 2.2 stroker 04 wrx. anyone got any opinions or know any info would be grate.

[Sime]

I used to have an FP-Red 8cm. Was a good turbo, but my bolt on ATP GT35R is superior in every regard. It makes more power sooner, and carries that right through the powerband.

You should also look at ATP turbos as well.

[Bazza]

Sime, on Apr 7 2010, 05:53 PM, said:

I used to have an FP-Red 8cm. Was a good turbo, but my bolt on ATP GT35R is superior in every regard. It makes more power sooner, and carries that right through the powerband.

You should also look at ATP turbos as well.

Didn't you go from stock heads to ported heads also? If so you can't really make that comparison. Also didn't they both make 295 kw @ 25 psi or thereabouts Not trying to be a pain but it's important for people trying to determine what to buy.

[Sime]

Bazza, on Apr 7 2010, 10:12 PM, said:

Didn't you go from stock heads to ported heads also? If so you can't really make that comparison. Also didn't they both make 295 kw @ 25 psi or thereabouts Not trying to be a pain but it's important for people trying to determine what to buy.

Bazza, I am comparing apples with apples: the FP was tuned with my TK ported heads, just as the 35R was, and on the same dyno with the same brand of fuel.

The FP made 291.8kw atw at 24psi and the 35R made 296.6kw atw at 23 psi, but the 35R's tune was far from optimised because the wastegate was incorrectly set to open at only 14psi. So, the plot showed it coming up on boost later than the FP, but yet despite this, the 35R still had a better midrange and top end. Basically, the EBC was holding the 35R back. Driving the car right after that tune and with the wastegate still set to open at 14psi, as you might expect, the car was very unimpressive.

However, as soon as I fixed the EBC settings, it completely changed things. Now the car is an animal - everywhere. Needs to go back on the dyno to be tuned properly, but I can say that it definitely feels better/stronger than the Red.

The ATP 35R is getting rave reviews on NASIOC. In fact, nobody even seems to mention the Red on there anymore.

[Bazza]

Sime, on Apr 7 2010, 09:46 PM, said:

Bazza, I am comparing apples with apples: the FP was tuned with my TK ported heads, just as the 35R was, and on the same dyno with the same brand of fuel.

The FP made 291.8kw atw at 24psi and the 35R made 296.6kw atw at 23 psi, but the 35R's tune was far from optimised because the wastegate was incorrectly set to open at only 14psi. So, the plot showed it coming up on boost later than the FP, but yet despite this, the 35R still had a better midrange and top end. Basically, the EBC was holding the 35R back. Driving the car right after that tune and with the wastegate still set to open at 14psi, as you might expect, the car was very unimpressive.

However, as soon as I fixed the EBC settings, it completely changed things. Now the car is an animal - everywhere. Needs to go back on the dyno to be tuned properly, but I can say that it definitely feels better/stronger than the Red.

The ATP 35R is getting rave reviews on NASIOC. In fact, nobody even seems to mention the Red on there anymore.

I think you're memory is going big fella (lol hopefully not mine!), didn't you do what you said below after Danny and I tuned the old girl originally Thought you didn't get a chance to test the FP Red with the new heads cos it ate something while you were still running the engine in?

Also the wastegate opening at 2 psi, 15 psi or 20 psi is going to bugger all difference in the top end. Helps midrange of course but by the sounds of it you're expecting 15-20+ kw from it? Just crank the boost to 28 psi and you'll definetely see it then Although I reckon with the engine a bit more worn in you'll probably gain power from purely the better ring seal.

Sime, on Dec 30 2009, 10:19 AM, said:

** UPDATE **

Well, it's been quite a while since I posted any update on my car, so I thought it about time!

Middle of last year, I commenced (another!) upgrade of my car. My engine came out so TK could do an 'on the limit' CNC port job on my AVCS heads, along with +1mm larger Ferrea valves. At the same time, since we had the engine out, I had my engine builder do a freshen up. I had the SPS forged pistons ceramic coated by HPC, new bearings installed and a light hone were performed plus ARP 12mm head studs installed. I also fitted a Hyperflow 'Monster' FMIC kit, a Hyperflow top mount oil cooler and a Competition Clutch Stage 4 ceramic 6 puck kit.

I also installed an ATP GT35R internally gated bolt-on and an Eboost Street EBC. I'm back to running the stock ECU now (reflashed). I only have 300km on the motor so I'm taking it relatively easy while I still break the motor in, but let's just say that this new setup on wastegate pressure (~15psi) seems to be nearly as strong as my FP-Red when it was at about 23psi!

I still have to get the neutral switch mod performed to make the most of the AVCS, but from the few days I have driven the car, even without a tune to make the most of the new mods, I can easily see that this thing is going to haul! Last dyno at Springy made 292kw atw with the FP Red. I can tell that this will easily crack 300kw. Hopeful for a low 11 on the 1/4.

I need to put some k's on the car, and will book it in for tuning when I get to 1500km. I have also just about finished the '07 cosmetic upgrade too, with just the wheels left to paint. Will post pics soon.

Cheers,
Sime

[Built h6]

Sime, on Apr 7 2010, 09:16 PM, said:

The ATP 35R is getting rave reviews on NASIOC. In fact, nobody even seems to mention the Red on there anymore.

The US of A go's in fads..whats the cool turbo atm,next month it will be something else.

If what bazza posted up from your thread is right,you cant compare the to on your b4 and afters..you can only really do that if it was swamped over there and then and run up again.

[Sime]

You know what Baz, I think you're right. I think i am losing my memory (guess it starts to happen when you're staring 40 in the face)!!

Could have sworn my car was tuned with the new heads and the FP. TK was suggesting these heads would be good for 350kw atw (and that's on the money 'cause Torc's car with Tony's heads near-on identical to mine made over 330kw atw), so I hope my 'investments' in the turbo, heads and intercooler were worth more than only 5kw atw! Otherwise, I'd consider that a bit of a personal fail as far as ROI is concerned. Granted, Simon does have a twist mount so I'm not sure how many kw that is worth over a conventional mount. Have heard it's about 20-30hp.

If the car doesn't make more power, I'm not sure what would be holding it back.....as I have the better heads, turbo which is easily good for 330+kw atw and all supporting mods to make more than 300kw atw......so I would hope it does better than it's current 297kw atw.

Proof is in the pudding. Car is booked in at Springy on Friday (16/4), so I'll be able to see the max potential of the new setup. Obviously one can't compare the FP to the ATP on my car due to the differing setups, but we'll be able to see what my setup will be capable of.

Cheers,
Sime

[bhpsti]

Sime, on Apr 8 2010, 11:08 PM, said:

You know what Baz, I think you're right. I think i am losing my memory (guess it starts to happen when you're staring 40 in the face)!!

Could have sworn my car was tuned with the new heads and the FP. TK was suggesting these heads would be good for 350kw atw (and that's on the money 'cause Torc's car with Tony's heads near-on identical to mine made over 330kw atw), so I hope my 'investments' in the turbo, heads and intercooler were worth more than only 5kw atw! Otherwise, I'd consider that a bit of a personal fail as far as ROI is concerned. Granted, Simon does have a twist mount so I'm not sure how many kw that is worth over a conventional mount. Have heard it's about 20-30hp.

If the car doesn't make more power, I'm not sure what would be holding it back.....as I have the better heads, turbo which is easily good for 330+kw atw and all supporting mods to make more than 300kw atw......so I would hope it does better than it's current 297kw atw.

Proof is in the pudding. Car is booked in at Springy on Friday (16/4), so I'll be able to see the max potential of the new setup. Obviously one can't compare the FP to the ATP on my car due to the differing setups, but we'll be able to see what my setup will be capable of.

Cheers,
Sime

Do you think that the restirction could be the intake path to your std location?Twistmount allows for a bigger and better flowing intake.

[millie05]

well im running a stock location gt35r and making 300kw on 20psi , we had it over 300kw on springy dyno. so similar setup as sime

[Bazza]

millie05, on Apr 9 2010, 06:03 PM, said:

well im running a stock location gt35r and making 300kw on 20psi , we had it over 300kw on springy dyno. so similar setup as sime

Yours has made some very good power indeed. I'm looking foward comparing what I end up with to what you guys have got. Mine is an all out no compromises twist mount build so at the other end of the GT35R spectrum as opposed to what Sime has done and cheated with a bolt on jobbie and then with yours being a proper GT35R but in stock possie ie Mine has 4" intake, 3" dump (no muffler or resonators), screamer wastegate setup and all the piping is setup so no sharp bends into the turbo or away from it.... she's a bit loud though!

There is an RSLC National Meet dyno day in May @ Springy, you should come.