ISF - AUS custom dyno tuned - DONE!
Thread Starter
Driver
Joined: Jul 2015
Posts: 116
Likes: 4
From: AU|NSW
Hey mate, nice to see an Australian ISF tuned and interestingly not a tune from RR or TTFS either!
Proximal to the Y pipe appears to be horrible crush bends leading to the reduced benefit of recutting the flanges on the stock cats. The '245kw' curve with the blip on the end seems to be a bit of a misnomer too. Nonetheless, thanks for sharing your results - IMO redo your midsection and there should be more gains...
Proximal to the Y pipe appears to be horrible crush bends leading to the reduced benefit of recutting the flanges on the stock cats. The '245kw' curve with the blip on the end seems to be a bit of a misnomer too. Nonetheless, thanks for sharing your results - IMO redo your midsection and there should be more gains...
Thread Starter
Driver
Joined: Jul 2015
Posts: 116
Likes: 4
From: AU|NSW
Pole Position
Joined: Jun 2016
Posts: 272
Likes: 8
From: KS
Edit - So I'm still learning and I have a few questions. Could an exhaust work (like borla, joe z, etc) with this set up? Also if this is done would it work with RR's tune? Or should I go the traditional route with H/E/T?
Last edited by ROYALISF; Aug 20, 2016 at 09:25 PM. Reason: Adding a question
Thread Starter
Driver
Joined: Jul 2015
Posts: 116
Likes: 4
From: AU|NSW
Ditto. Thinking about going Monday to see who can fab something up like this. And NO SMELL
Edit - So I'm still learning and I have a few questions. Could an exhaust work (like borla, joe z, etc) with this set up? Also if this is done would it work with RR's tune? Or should I go the traditional route with H/E/T?
Edit - So I'm still learning and I have a few questions. Could an exhaust work (like borla, joe z, etc) with this set up? Also if this is done would it work with RR's tune? Or should I go the traditional route with H/E/T?
I am VERY confident though that if they wide the primaries that they will be even better..
Pole Position
Joined: May 2016
Posts: 255
Likes: 26
From: NSW
Yup, you are spot on, its definitely restrictive. What should have been done is new piping from the cats back to the stock mufflers, full twin system with a merge. But for probably $1000-$1500, i really couldn't justify it. As i mentioned Sonny had built such a system with custom mufflers, and they netted 260kw at the wheels, with no tune! So there is definitely more left in it, but im happy where i am for now.
Ive got a cat back exhaust, K&N in the stock box and Apexi throttle controller but otherwise its stock.
I wanted headers but they are very pricey here vs the states. A few went PPE but paid about 3.5k AU. I got a quote from Liverpool exhaust to do custom ones to the similar PPE specs but titanium, better cooling etc for the same price. I was hoping they'd be cheaper.
CPI have offered to tune mine but just weighing my options as this is near 2k. They showed me a dyno of another ISF tuned with a aftermarket filter. It went from 247 to 283 after the tune and showed big gains throughout the rev range at 509NM torque. He wants me to get headers and then do the tune as this would give even more to play with and surely get a better result but thats going to cost about 5.5k :-(
Just weighing up my options what the next BFYB mod will be lol. Might contact Sonny and see what he can offer
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Yes, imagine if the cats had been gutted like a lot are in the states, would be even better results. Considering RR Racing have pretty much maximised the tune on their car for everything except for widening the primaries, it would be a perfect test bed for ascertaining the gains of widening the primaries. Do it boys :-)
Yeah the smell would kill me, i still think its not great as is, seem to always get exhaust smells in the car. Yes it would work, but you may need to modify the connection point closest to the cats, as i had to in the last few pictures. But definitely would work. If i had a massive budget, then def would have gone headers, they sound awesome.. But as RR Racing have proven, primaries with gutted cats perform just as well if not better. Otherwise they would be using headers, simple as that.
I am VERY confident though that if they wide the primaries that they will be even better..
Yeah the smell would kill me, i still think its not great as is, seem to always get exhaust smells in the car. Yes it would work, but you may need to modify the connection point closest to the cats, as i had to in the last few pictures. But definitely would work. If i had a massive budget, then def would have gone headers, they sound awesome.. But as RR Racing have proven, primaries with gutted cats perform just as well if not better. Otherwise they would be using headers, simple as that.
I am VERY confident though that if they wide the primaries that they will be even better..
How many dyno pulls did you do for your base line? How long did you wait to dyno after the mods? How many dyno pulls did you do after the mods? Was this dyno at a controlled weather facility?
Last edited by jat0223; Aug 21, 2016 at 08:33 AM.
Thank you for sharing this nice mods. Is there a difference before and after the flange mods interms of smell? My muffler shop quoted $250 for the modification. Is this reasonable?
Thread Starter
Driver
Joined: Jul 2015
Posts: 116
Likes: 4
From: AU|NSW
Hi mate, great to see a fellow Aussie tuned ISF. I joined this forum as there is alot more activity for this car vs in Oz where many are standard.
Ive got a cat back exhaust, K&N in the stock box and Apexi throttle controller but otherwise its stock.
I wanted headers but they are very pricey here vs the states. A few went PPE but paid about 3.5k AU. I got a quote from Liverpool exhaust to do custom ones to the similar PPE specs but titanium, better cooling etc for the same price. I was hoping they'd be cheaper.
CPI have offered to tune mine but just weighing my options as this is near 2k. They showed me a dyno of another ISF tuned with a aftermarket filter. It went from 247 to 283 after the tune and showed big gains throughout the rev range at 509NM torque. He wants me to get headers and then do the tune as this would give even more to play with and surely get a better result but thats going to cost about 5.5k :-(
Just weighing up my options what the next BFYB mod will be lol. Might contact Sonny and see what he can offer
Ive got a cat back exhaust, K&N in the stock box and Apexi throttle controller but otherwise its stock.
I wanted headers but they are very pricey here vs the states. A few went PPE but paid about 3.5k AU. I got a quote from Liverpool exhaust to do custom ones to the similar PPE specs but titanium, better cooling etc for the same price. I was hoping they'd be cheaper.
CPI have offered to tune mine but just weighing my options as this is near 2k. They showed me a dyno of another ISF tuned with a aftermarket filter. It went from 247 to 283 after the tune and showed big gains throughout the rev range at 509NM torque. He wants me to get headers and then do the tune as this would give even more to play with and surely get a better result but thats going to cost about 5.5k :-(
Just weighing up my options what the next BFYB mod will be lol. Might contact Sonny and see what he can offer
I'm not sure if I'm understanding you correctly, but RR racing are using headers. I have a few questions about how your tests were performed.
How many dyno pulls did you do for your base line? How long did you wait to dyno after the mods? How many dyno pulls did you do after the mods? Was this dyno at a controlled weather facility?
How many dyno pulls did you do for your base line? How long did you wait to dyno after the mods? How many dyno pulls did you do after the mods? Was this dyno at a controlled weather facility?
The dynos and mods were done over the course of a week, so maybe as the ECU learns a bit more it will pull harder, who knows. I dont think its a weather controlled..? Dont actually know. Bu there was a LOT of dyno pulls, some good thorough testing and retesting.
No difference in smell, none at all. That seems pretty reasonable, its a bit of work to do it properly.
Thread Starter
Driver
Joined: Jul 2015
Posts: 116
Likes: 4
From: AU|NSW
They went up around 10% for power and torque, which is awesome, and extremely noticeable in both day to day driving and fun time.
But yes, if that torque was a reality, would be rather nice haha!
