Pottential of the 305 tpi
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Joined: Apr 2000
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Car: 87 IROC
Engine: modded LB9
Transmission: Pro Built 700R4
Mid to low 12s are perfectly possible. There are a few people here doing that. Willie on the power adder board runs a 12 flat at about 116mph.
It all comes down to how much you are willing to spend.
It all comes down to how much you are willing to spend.
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Joined: Mar 2002
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From: SE Michigan
Car: Bright Red 91 GTA
Engine: CARBED LT4
Transmission: MK6
the 305 tpi is like any other engine...yea it has a smaller bore then a 350 but can still make good power
the key to buidling a 305 is buying parts that are a little "overkill" so that when u build your 350 these parts will be perfect..
theres a guy here name tim burgess...hes got a 305 tpi with a tpis big mouth base large tube runners stock ported heads and a tpis l98 super profile cam and hes crankin 410 hp....transer those same parts to a 350 and you gonna be makein some real good power...
the key to buidling a 305 is buying parts that are a little "overkill" so that when u build your 350 these parts will be perfect..
theres a guy here name tim burgess...hes got a 305 tpi with a tpis big mouth base large tube runners stock ported heads and a tpis l98 super profile cam and hes crankin 410 hp....transer those same parts to a 350 and you gonna be makein some real good power...
money is not a problem. So what mods would you guys recomend to get to make good power. Oh Yeah, where can i get a nice set of forged pistons for a 305. I can't seem to find them.
Thanks.
Thanks.
Last edited by E.T.; Jan 29, 2003 at 07:45 AM.
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From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
TRW/Speedpro makes forged pistons.
The new TRW forged comes with much tighter recommended side clearance and teflon coated skirts
Out of the box the TRW's need a little deburring & polishing to smooth the edges, but they work and they are much better than they used to be. 305 pistons run around $400 & actually cost more than 350 pistons.
The new TRW forged comes with much tighter recommended side clearance and teflon coated skirts
Out of the box the TRW's need a little deburring & polishing to smooth the edges, but they work and they are much better than they used to be. 305 pistons run around $400 & actually cost more than 350 pistons.
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Joined: Jan 2003
Posts: 404
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From: Hartland MI
Car: 89 Formula
Engine: 355
Transmission: 700r4
Axle/Gears: 3.73
Originally posted by E.T.
I really just want to see what can be done with them, but i will probably go with a 350.
I really just want to see what can be done with them, but i will probably go with a 350.
No matter what, good luck!
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Joined: Jan 2003
Posts: 1,931
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Originally posted by E.T.
I really just want to see what can be done with them, but i will probably go with a 350.
I really just want to see what can be done with them, but i will probably go with a 350.
:rockon: :rockon: Finally someone understands !!!!!!!!
....but when I finally step up ...... it ain't gonna be no piddley'lil 350 ..... here's what I got in mind for starters
My dream starting point
Member
Joined: Jan 2003
Posts: 404
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From: Hartland MI
Car: 89 Formula
Engine: 355
Transmission: 700r4
Axle/Gears: 3.73
Originally posted by D's89IROCZ
:rockon: :rockon: Finally someone understands !!!!!!!!
....but when I finally step up ...... it ain't gonna be no piddley'lil 350 ..... here's what I got in mind for starters
My dream starting point
:rockon: :rockon: Finally someone understands !!!!!!!!
....but when I finally step up ...... it ain't gonna be no piddley'lil 350 ..... here's what I got in mind for starters
My dream starting point
I am going to put a 383 in my vette next year if the tranny survives behind a 350 for this summer. Then transplant my LT1 intake from the Formula into the vette and put a Holley Stealth Ram with a supercharger in the Formula. Should be fun!
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