ok i just boosted my car and im wondering how much WHP i can put down with stock internals ..... i dont want to know how much boost that doesnt matter when you have a different size turbo your moving different amounts of CFM's so how much whp does the HRC puts down or the STAR kit puts down thanks if you dont feel like typeing it just put a link to were i can find this information thanks alot julian

im gonna say really pushing it is 250whp but theres a good chance something might give, safely probably closer to 230

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1998 GS-Turbo KANDY -- For Sale
1999 GS-Non Turbo 10th anniversary Edition

I have been in bed with Dino.....ask me for a picture!

both of you are wrong, which this is a topic that should not be "guessed" on.

The 420a Stock bottom end with a properly designed fuel system can support 275 CHP daily and 300hp on occasion. For anyone who posed above that would like to argue, proof can be had on HRC website. Bill has done extensive testing to actually find the limits of our 420a and the weak point is the piston ring lands. if you install forged pistons on Stock rods, 19 psi daily is very possible and has been proven by a member here. The post about this cannot be found on this site so dont bother searching.


Terry

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I'm sure with a T3/T4, supporting mods, cams and head work, 275whp isn't unobtainable on a stock bottom end. Tune safely with enough fuel and watch for knock and you should be good to go.

I believe that as far as TommyBoy bending rods is because they can't handle the pressure from the boost. But at 7-9 psi with headwork and cams you should be able to crack the 275whp mark safely.

Julian, with proper building and tuning you can almost accomplish anything. You just need to do a lot of research and be carful with what you are doing. Dont expect too much too fast otherwise you will be disappointed.

http://www.cardomain.com/id/hunntyr


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maybe if you like, use a phase-change intercooler setup.... and you swap a 2.4 in too..

2005 Legacy GT Ltd, Garnet Red Pearl
speak softly and spool a big turbo

may i remind people that these cars come with 115whp stock. 10psi isnt going to add 150whp.

Mr slick ran 19 psi daily on his car before ripping it apart. he had forged pistons and stock rods. It was posted on a site that I see you frequent also.


and as far as losing 17% in drivetrain, that is a generalization and is not a proven formula for every single car. If you want to parrot info make sure you have proof! Show me a Dyno sheet of CHP and whP on a 2gnt with 2.0 in it.

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thanks for all of the replys sorry it took me a while to reply my internet went out....... this is the 1st time some 1 didnt tell me look again or something like that lol but i think im going to stick with 230 whp what boost levels is it taking the 16g to put down 230 to the wheels what kind of a/f ratio do yalll have ..??? thanks

hahns site says 8psi but probably closer to 10, and as far as a/f ratio, search, please search.

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