The cyborg turbo running those high boost numbers definitely effects how hard it is on the intercooler to keep up. A larger turbo on 24psi would have an easier time in 2 ways. #1 less boost makes less heat, and naturally the larger compressor size makes less heat for the cooler to deal with. #2 and I know its your favorite, lol, lag. How much boost over how much time? The cyborg pumping 20psi at 3,000 vs a big turbo taking until 4200 rpm to make 20psi means the cooler deals with high boost for less time. On a road course, #2 would prob even out. But making dyno pulls or V-dyno pulls, its pretty relevant.
And that's just the way it is. Cyborg has positives and negatives. You can't have it all.
As long as the core can FLOW, air/cfm wise, what your large gtx turbo is making, cooling shouldn't be too bad. Like ATP rates there garrett core at 400hp flow wise. But that doesn't actually say anything about its cooling ability. Pretty much any bolt-on cooler we have the option for should be able to flow 260whp, but that's not to say more frontal area wouldn't help make that 260whp stay at 260whp at all times vs being 260whp, then 252whp, then 245whp, then 235whp on a road course. Or a 70degree day vs a 85 degree day. Your power (and tune ) would just be much more reliable, and constant with a larger cooler.
And all that stuff about bigger coolers adding lag, etc etc etc. well... I read corky bell's book 20 years ago too, but in practice, in the real world on modern cars/turbo's. Its just wrong. More frontal area, THEN volume will always make more power vs a smaller core with less frontal exposure. Gotta realize, corky was looking at 1987 buicks and stuff when he wrote that book, lol. Like I've posted before, the srt4 guys tested and tested and tested until they really became the model for "bigger is better, even with a under-sized turbo". They even had dyno proof that a high flowing core, hurt performance on a small/stock turbo vs one that was bigger but did not flow as well". They concluded that the air pasted through the high flow unit so fast, it didn't get cooled as well as a larger china cooler that restricted flow a bit, but offered more internal volume. Think of a thermostat and a radiator. If you take the thermostat out, the car may/will overheat on the interstate. Because the water goes through the rad so fast, it doesn't get cooled. But add a little restriction, and the water gets cooled better.
And that's just the way it is. Cyborg has positives and negatives. You can't have it all.
As long as the core can FLOW, air/cfm wise, what your large gtx turbo is making, cooling shouldn't be too bad. Like ATP rates there garrett core at 400hp flow wise. But that doesn't actually say anything about its cooling ability. Pretty much any bolt-on cooler we have the option for should be able to flow 260whp, but that's not to say more frontal area wouldn't help make that 260whp stay at 260whp at all times vs being 260whp, then 252whp, then 245whp, then 235whp on a road course. Or a 70degree day vs a 85 degree day. Your power (and tune ) would just be much more reliable, and constant with a larger cooler.
And all that stuff about bigger coolers adding lag, etc etc etc. well... I read corky bell's book 20 years ago too, but in practice, in the real world on modern cars/turbo's. Its just wrong. More frontal area, THEN volume will always make more power vs a smaller core with less frontal exposure. Gotta realize, corky was looking at 1987 buicks and stuff when he wrote that book, lol. Like I've posted before, the srt4 guys tested and tested and tested until they really became the model for "bigger is better, even with a under-sized turbo". They even had dyno proof that a high flowing core, hurt performance on a small/stock turbo vs one that was bigger but did not flow as well". They concluded that the air pasted through the high flow unit so fast, it didn't get cooled as well as a larger china cooler that restricted flow a bit, but offered more internal volume. Think of a thermostat and a radiator. If you take the thermostat out, the car may/will overheat on the interstate. Because the water goes through the rad so fast, it doesn't get cooled. But add a little restriction, and the water gets cooled better.
![[woot]](/images/smilies/icon_smile_woot.gif "Woot! [woot]"){kind=icon}
