kottonmouth
10-26-2007, 11:42 AM
some of you may have seen this already and some may have not, this is a article written by jeff koch from the ohc(olds historial center) i have it from a 89 hot-rod mag
when it was introduced in the waying days of the 80s, the quad 4 represented a massive step forward for gm. olds along with batten enginering and feuling engineering) developed the 2.3l iorn block, four valve dohc aluminum head power house for gms rapidly expanding fwd line up. concurrently, a 750hp twin-turbo de-stroked 2.0l version made big news in the longtrail areotech (hrm, march. 87'), a full bodied areodynamic wonder on a march/foyt chassis that a.j. foyt piloted to the 266 mph mark and the american closed-course speed record at fort stockton texas.
production quads debuted in the 88' model year, the year before when olds 307 made 180hp in ho trim, a four banger with half the displacement and the same hp and trq propped everyones eyes open with tooth picks, why infact ford needed a turbo straped to their 2.3 to make a little UNDER the same hp. in 89 the w-41 package was an option and gave calais and achievas 190hp.
in later 89 olds went racing with the quad, primarialy in imsa firehawk comps and SCCA showroom stockers, they had multiple class victories and gained manufacturer class championships in 89-91-92-and 93, the imsa prepped cars feautured non accsesory serp belts and other GMPP parts, and a lack of emissions gave these quads about 230hp. though it had great sucsess in terms of units made and racing victories, the quad was bashed by the motoring press for its rough and tumble additude. as a result virtualy any changes to the quad (ld9) were made in the name of improved emissions, less noise-vibration-and harshness (nvh) supression.
when it was introduced in the waying days of the 80s, the quad 4 represented a massive step forward for gm. olds along with batten enginering and feuling engineering) developed the 2.3l iorn block, four valve dohc aluminum head power house for gms rapidly expanding fwd line up. concurrently, a 750hp twin-turbo de-stroked 2.0l version made big news in the longtrail areotech (hrm, march. 87'), a full bodied areodynamic wonder on a march/foyt chassis that a.j. foyt piloted to the 266 mph mark and the american closed-course speed record at fort stockton texas.
production quads debuted in the 88' model year, the year before when olds 307 made 180hp in ho trim, a four banger with half the displacement and the same hp and trq propped everyones eyes open with tooth picks, why infact ford needed a turbo straped to their 2.3 to make a little UNDER the same hp. in 89 the w-41 package was an option and gave calais and achievas 190hp.
in later 89 olds went racing with the quad, primarialy in imsa firehawk comps and SCCA showroom stockers, they had multiple class victories and gained manufacturer class championships in 89-91-92-and 93, the imsa prepped cars feautured non accsesory serp belts and other GMPP parts, and a lack of emissions gave these quads about 230hp. though it had great sucsess in terms of units made and racing victories, the quad was bashed by the motoring press for its rough and tumble additude. as a result virtualy any changes to the quad (ld9) were made in the name of improved emissions, less noise-vibration-and harshness (nvh) supression.