Join Date: Feb 2009
Location: Gilbertsville. Pa.
Back pressure is a concern but if it is mainly a street car , the short bursts aren't going to hurt it. I ran a Turbonetics 7668 with a 3" dp on my 383 in my lightning and on the street it was awesome. Spooled instantly and just kept pulling. I ran [email protected]
almost 124 at 4410 also. I just sold it and the turbo is on another truck and still working perfect. Before that is was on my brothers car and ran hundreds of times. I do agree though, back pressure will kill a turbo eventually but will not be something that happens in a short period of time. I never had my truck on a dyno but we figure it was making around 630-650 at 14.5 psi and that was probably about all it would make given the smaller exhaust side. I could hear the bp so to speak when I would let off at the track.
1995 lightning Forged 383 sbf. AFR 195 heads, Silverstate motorsports turbo kit, 76mm T-netics turbo, 50mm wg, Tial 50mm bov, Punisher built E40D, Circle D 258mm 3200 converter, Built 8.8 with welded tubes,DTS girdle, Tru-Trac and LFP 58" Longbars, Tuned by Fast