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question. is my fujitsubo titanium exhaust holding the turbo back
hi guys. my spec c blob has a 3inch fujitsubo titanium exhaust reducing to 2.5 inch through 2 cans and a rear muffler. turbo is an mdx321t+. 3 inch dump no pre or post cats. 1000cc inj 340 fuel pump. std spec c ej207?. thoughts.
thinking of going bigger but I like this exhaust. car currently makes 380bhp@4500rpm @1.4bar bernie |
Originally Posted by rockabilly
(Post 12023998)
hi guys. my spec c blob has a 3inch fujitsubo titanium exhaust reducing to 2.5 inch through 2 cans and a rear muffler. turbo is an mdx321t+. 3 inch dump no pre or post cats. 1000cc inj 340 fuel pump. std spec c ej207?. thoughts.
thinking of going bigger but I like this exhaust. car currently makes 380bhp@4500rpm @1.4bar bernie Need some more boost to wake that turbo up. |
Originally Posted by ian12
(Post 12024218)
Really don’t think that exhaust would hold it back. I run 430 on a 2.5 inch. Need some more boost to wake that turbo up. |
Originally Posted by rockabilly
(Post 12024279)
cheers ian. just what I needed someone running 400 + on a 2.5 cheers. agreed more boost but when we tried no joy. the tmic in std airbox with k&n wouldn't have it
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got the rcm induction coimg. gonna leave the tmic. thinking of sending it back to lateral to change it to a h instead. probably make same power but less lag.
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RCM fitted to mine. Tight with space though had to put a curve pipe on the inlet. still slightly touch’s the abs block and the bonnet but that’s the FMIC fault. https://cimg9.ibsrv.net/gimg/www.sco...da80eb59fd.png Do you have a dyno graph? |
https://cimg3.ibsrv.net/gimg/www.sco...c7d5e1f89d.jpg
at the crank on teg dyno lancaster |
Originally Posted by rockabilly
(Post 12024488)
https://cimg3.ibsrv.net/gimg/www.sco...c7d5e1f89d.jpg
at the crank on teg dyno lancaster |
I'm using a fujistubo Gikken on a 2.l currently making 392. I've fitted a 3" all the way to flange downpipe and had the 2.5" section of the exhaust cut off and a 3" flange welded on. Hayward & Scott supplied the downpipe and welded the 3" flange.
Previous to this the car struggled to make 377, I also opened up the factory exhaust headers. sti ra gc8. The mapper said the 565cc injectors are holding it up or else it would have broke the 400 pub talk bench mark.https://cimg9.ibsrv.net/gimg/www.sco...e6197da22e.jpgimpreza gc8 fujitsubo gikken 3" |
interesting edsel mine looks identical but titanium, same number of boxes and 2.5 flange. my dump is a true 3 inch. so would you say keep the exhaust but fit a 3 inch flange
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would you say you noticed it spool any earlier?
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https://cimg9.ibsrv.net/gimg/www.sco...8f112655da.jpg The car is heavily modified running a mdx billet ball bearing 312h turbo so it spools really well without much encouragement. If the exhaust has 2.5 flange the down pipe must have the same. |
Originally Posted by ian12
(Post 12024454)
RCM fitted to mine. Tight with space though had to put a curve pipe on the inlet. still slightly touch’s the abs block and the bonnet but that’s the FMIC fault. https://cimg9.ibsrv.net/gimg/www.sco...da80eb59fd.png Do you have a dyno graph? |
Originally Posted by nufctoon
(Post 12024839)
what turbo inlet are you running?
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edsel I made an adapter to go from 3" dump to the 2.5 fujitsubo. maybe an issue this but no proble I have a 3" flange pipe and a welder lol.soon mod it.
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Originally Posted by ian12
(Post 12024914)
Samco. I was reading that there hard to fit but I found it really easy, just take your time, |
Originally Posted by nufctoon
(Post 12024954)
Is it the 3 inch one?
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right so this were we are at currently . fitted the cold air induction. I now rin speed density but still need air inlet temps as I have removed the maf. do I fit it in the cone pipe or best in the tmic?.https://cimg8.ibsrv.net/gimg/www.sco...38e2f15601.jpg
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gonna chop the 2.5 piece joiner of the exhaust and increase to 3 inch also
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