| Go back to previous topic | | Forum name | Turbo/Nitrous Tech | | Topic subject | motor rebuild for turbo....?? | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=10687 |
10687, motor rebuild for turbo....?? Posted by koolade9, Oct-11-01 11:06 AM
Ok, what kind of power loss(gain?) would I be lookin at if I were to rebuild the motor with 8.5 compression pistons, eagle rods, total seal rings, ported head, stronger valves/springs/retainers, and new cams(you get the idea).
but if I did the above, It would be another 6 months or so before I'd have the cash for a turbo kit...
would my power losses be pretty drastic by running low compression pistons with no turbo?
would the different cams help a little? or hurt me even more?
I need a quick lesson on cam lift/duration and it's relation to compression and/or turbo.
__________________________ ...just my $.02 95 GS

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10688, RE: motor rebuild for turbo....?? Posted by jZa, Oct-11-01 01:43 PM
i think its like 4 percent for every point, so you'd be at like 134 hp if thats the case. I imagine the cams will also slow you down since for turbo you get some that retard upper end timing, not sure. If you get an underdrive pulley, it might all balance out :)
javi d vroom n' boom
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10689, RE: motor rebuild for turbo....?? Posted by flossinpnoyracer, Oct-11-01 01:46 PM
y dont you just wait till u have all the cash and dump it in all together so once u get your car back fully rebuilt and turboed it will totally feel like a new car hehe
or do it like everyone else turbo first then blow it up then rebuild

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10690, RE: motor rebuild for turbo....?? Posted by rsjourney95, Oct-11-01 03:37 PM
hey, I'm rebuilding my engine as of right now, actually I'd call it overhaul cause I pretty much using stock parts and changing seals, gaskets, rings n such...NEways, cam lift/duration have no affect on compression, but a higher lift and longer duration cam would greatly increase top end power, along with overlap...but this could mess up your idle depending on how aggrssive of a cam your running..I'm sure other people on board could give you more info..
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10691, RE: motor rebuild for turbo....?? Posted by koolade9, Oct-11-01 05:29 PM
my first plan was to run the turbo kit for 6 months or so, till I could afford the rebuild, but I'm afraid she'll go before that, which is why I was contemplating the rebuild first...
I'll probably just get the kit and not turn up the boost too much...
__________________________ ...just my $.02 95 GS

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10692, RE: motor rebuild for turbo....?? Posted by Michael_97RS, Oct-12-01 02:34 AM
Yeah Blake I would hold off on the rebuild untile you could do it all at once. I know I would miss the power. Cams you want for turbo are not great for making NA power. How many miles on your motor again? Just be carefull with the boost make sure fuel is tuned in right and you shouldn't have any problems until you can save up for the rebuild.
(Do I hear a trip or two down to help with a turbo install?? :-))
PS as soon as I get a hold of Guy I'll shoot you an e-mail and let you know what's going on with the car show.
"The fastest draw is when the sword never leaves the scabbard, The strongest way to block, is never to provoke a blow, And the cleanest cut is the one withheld."
Michael J. Kulaga e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga Website: http://highlander.dsmpower.com/
All Motor Beast in the Making
Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads
To Be Installed: Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads
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10693, RE: motor rebuild for turbo....?? Posted by MuRiX, Oct-12-01 04:15 AM
I must be the only one who thinks the wait would be worth it :) I do not htink the loss would be very big at all and considering what the end result is going to be why not.
MuRiX 97 Eclipse GS HRC Stage IV+ Sitting and collecting dust most of the time.. A.D.P. http://www.murix.com

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10694, RE: motor rebuild for turbo....?? Posted by jZa, Oct-12-01 11:12 AM
another good thing is the motor will be broken in, so as soon as you get the turbo you're ready to fly :)
javi d vroom n' boom
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10695, RE: motor rebuild for turbo....?? Posted by koolade9, Oct-14-01 10:58 AM
I've gone back and forth....but some good man said..."if it ain't broke don't fix it" car's got 102k on the odo. the compression test will tell all. so we'll see.
__________________________ ...just my $.02 95 GS

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