2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

? on horse power on stock internals

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Old Dec 26, 2004 | 11:59 AM
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Question ? on horse power on stock internals

Well I'm in the process of getting ready to build my 7 and I am trying to find out what kind horse power the stock internals will handle so I know if I need to go with a rebuild with street port and 3mm seals first or if i can get what i want out of the stock internals. Any info will help. I did search and found nothing that would help me out. Thanks in advance.
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Old Dec 26, 2004 | 12:46 PM
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alot of people swear that the stock 2mm seals are better than 3mm..
There is nothing really you can change internally besides the seals unless you have heaps of cash for lightend rotors, ect... Performance mostley depends on what you do to the other things like porting and boost.

but dont believe what I say.. let's hear someone who actoually has experience with this.
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Old Dec 26, 2004 | 12:55 PM
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the stock internals are good, i would say an n/a internals can handle upwards of 300RWHP easily but not so easy to get that high with an n/a unless bridgeport it. turbo internals are good up to and beyond 350RWHP.

stick with 2MM seals unless your rotors are worn out and won't fit stock 2MM seals anymore.
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Old Dec 27, 2004 | 05:18 AM
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Control detonation and 500hp is not surprising...


-Ted
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Old Dec 27, 2004 | 10:40 AM
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Originally Posted by Karack
the stock internals are good, i would say an n/a internals can handle upwards of 300RWHP easily but not so easy to get that high with an n/a unless bridgeport it. turbo internals are good up to and beyond 350RWHP.
You do realise that NA and TII "internals" are exactly the same except for compression?

Up to 400HP on each engine, and then you start looking at doweling.
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Old Dec 27, 2004 | 04:55 PM
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Originally Posted by RETed
Control detonation and 500hp is not surprising...


-Ted
isn't detonation a bad thing?
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Old Dec 27, 2004 | 05:40 PM
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Originally Posted by rodney87
isn't detonation a bad thing?
YES!
Detonation on an engine "only" producing about 270hp will CRACK oil filter bases (non-reinforces Zenki engines) and the opposite oil supply port on 13BT turbo engines.


-Ted
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Old Dec 28, 2004 | 02:20 AM
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Originally Posted by rodney87
isn't detonation a bad thing?
Yes it certainly is. What Ted meant by "controlling" detonation is not having any!
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Old Dec 28, 2004 | 08:29 PM
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i was told T2s had hardened gears where N/As weren't hardened. ah well, just passing on my own misinformation...
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Old Dec 28, 2004 | 08:32 PM
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damn guys so it wouldn't be hard to get 400 whp out of my stock TII motor the just got to control detantion. Sounds good to me.
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Old Dec 28, 2004 | 09:29 PM
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Originally Posted by Karack
i was told T2s had hardened gears where N/As weren't hardened. ah well, just passing on my own misinformation...
Yes and no.
Both Kouki turbo and NA engines are "ion-nitrided" stat gears.
The Kouki turbo rotors gears are ion-nitrided also; the Kouki NA rotor gears are not.


-Ted
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Old Dec 28, 2004 | 09:30 PM
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Originally Posted by 10thanniversaryrx7
damn guys so it wouldn't be hard to get 400 whp out of my stock TII motor the just got to control detantion. Sounds good to me.

no one said that it wouldnt be hard we are just telling you it can be done
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Old Dec 28, 2004 | 09:58 PM
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just depends on how fat your wallet is, it could be easily done if you got the $.
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