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13b-REW vs Comso engine...???

Old Mar 1, 2004 | 05:34 AM
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13b-REW vs Comso engine...???

Hi...

I have installed a Cosmo engine in my FD and it has a HKS T04R full kit on...
I would like to know if anybody knows if a Cosmo engine is making less power than a FD engine...

I am making 405 hp with 19 psi and i don`t think that is enough...

Thanx
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Old Mar 1, 2004 | 09:28 AM
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check your compression? that does sound low.
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Old Mar 1, 2004 | 05:44 PM
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ya, that sounds really low.
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Old Mar 1, 2004 | 07:08 PM
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405hp on stock turbines?? What are you modifications and what kind of tuning?

That sounds like a decent number to me. It is my understanding that the ports.....at least the runners are larger on the Cosmo engines this was for the s4 and s5 years....not sure whats happening with the S6 and stuff but if you are using stock turbines then that is not a bad number.
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Old Mar 1, 2004 | 07:11 PM
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stock cosmo exhaust sleeves?
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Old Mar 1, 2004 | 10:04 PM
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I have installed a Cosmo engine in my FD and it has a HKS T04R full kit on...
Originally posted by Ranzo
405hp on stock turbines?? What are you modifications and what kind of tuning?

That sounds like a decent number to me. It is my understanding that the ports.....at least the runners are larger on the Cosmo engines this was for the s4 and s5 years....not sure whats happening with the S6 and stuff but if you are using stock turbines then that is not a bad number.



those #s are very low for a t04r at 19psi...are you tuned? what EMS are you useing?
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Old Mar 2, 2004 | 06:10 AM
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Re: 13b-REW vs Comso engine...???

Originally posted by Seven93
Hi...

I have installed a Cosmo engine in my FD and it has a HKS T04R full kit on...
I would like to know if anybody knows if a Cosmo engine is making less power than a FD engine...

I am making 405 hp with 19 psi and i don`t think that is enough...

Thanx
Is it 405hp on the wheels or flywheel?

I'm also running a Cosmo engine, with a Holset Hx50. Have just started her up so I dont have any numbers. Is the engine totally stock inside?
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Old Mar 2, 2004 | 08:37 AM
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Hi...

I have a small streetport and nothing else is done to the engine...

I have offcourse a lot of other things.. Frontmount IC, 2 x 1000 cc extra injectors, 3" exhaust, MF2 fuelsystem, and much more....
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Old Mar 2, 2004 | 08:39 AM
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The hp is on the flywheel...
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Old Mar 2, 2004 | 08:58 AM
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Do you have the stock cosmo exhaust sleeves?

At what rpm do you see full boost?
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Old Mar 2, 2004 | 09:45 AM
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The stock cosmo exhaust sleeves are pretty restrictive as the engine came out of a luxury car tuned for torque. What engine management are you using?
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Old Mar 2, 2004 | 08:39 PM
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yeah sounds like you still using the comso exhaust sleeves. yank them suckers out and swap them with T2 sleeves
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Old Mar 4, 2004 | 01:34 AM
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Thanx guys..

I will try to look at the exhaust sleeves and see if that could help....
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Old Mar 4, 2004 | 09:26 AM
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405 flywheel? how do you knwo that? did you put it on an engine dyno... if its 405 flywheel something is horribly wrong
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Old Mar 4, 2004 | 02:30 PM
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Hi..

Yes i have dyno it and it shows 405,9 hp and 330 tq..

Here is a dyno pic....

https://www.rx7club.com/showthread.p...highlight=dyno
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