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#1
10-01-2004, 12:01 AM
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14b custom turbo for lude.
hey guys, ive recently heard more and more of preludes with custom 14b turbos off of the 1g dsms.so i thought it incredibly cheap and wanna go for it. im wondering if theres any chance of high wear or blown motor if i just ran the stock psi. any info or suggestions for this proj. would be helpful. thanks
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1993 prelude VTEC black, 20%tint all around, stock wheels/tires, weapon r intake, dc 4-2-1 ceramic headers, short shifter, Y.Paradas spec 2, THermal R*D ST exhaust coming soon: lightweight 17" rotas, 
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#2
10-01-2004, 11:04 AM
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Re: 14b custom turbo for lude.
The 7psi rule of thumb applies only to the T3/T4 hybrids, and a few of the larger Garrett T series. A 14B does not flow as efficiently as a hybrid, so the 7psi is not nearly as detrimental as it would be on a T3/T4.
DSM 4g63 compression ratio is around 7-8.0: 1, which is significantly lower than the H22A. As far as engine wear is concerned, a more imminent problem is the presence of engine knock, or detonation. If you don't get it, chances are you'd be alright. I'm still skeptical on whether the 4g63 manifold will fit on the h22a.
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 1993 Mazda Rx-7 Touring Ricer Extraordinaire
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