400whp
02-06-2008, 05:55 PM
#1
Thread Starter
Join Date: Feb 2008
Posts: 6
400whp
Hi guys,
I'm going to buy a 95 GT and I'd like to take her up to 400hp. I want a supercharger, as I live in high altitude. So I though of 6-8psi boost and what else do I need to get close to 400wHP? I thought a trickflow head might help. I don't want the car to be loud, so I'm not going to mess much with the exhaust.
Also, can the auto tranny handle this? It's gonna be a long range cruiser more than a sportscar, so it's gonna be automatic and low engine noise..
Thanks
I'm going to buy a 95 GT and I'd like to take her up to 400hp. I want a supercharger, as I live in high altitude. So I though of 6-8psi boost and what else do I need to get close to 400wHP? I thought a trickflow head might help. I don't want the car to be loud, so I'm not going to mess much with the exhaust.
Also, can the auto tranny handle this? It's gonna be a long range cruiser more than a sportscar, so it's gonna be automatic and low engine noise..
Thanks
02-06-2008, 08:49 PM
#6
Thread Starter
Join Date: Feb 2008
Posts: 6
RE: 400whp
I don't wanna spend more than $5k on the engine mods and I'm not going to work on it myself. The idea is to have somewhere around 400whp (350 minimum).
I hear some superchargers make an annoying whine and some turbos have that whistling tone too and top it off with a loud whistle when shifting (blowoff valve). But it seems a few superchargers don't seem to make that sound (judging by watching Youtube videos and my neighbors Mercedes 230 Kompressor). Honestly I hate that whining sound but I don't know how noticeable it is inside the car when cruising.. If I only hear it when I rev it high it's ok, but I don't want to hear a constant whine or whistle when driving 75-85mph on the highway.... As I've said I live at round 5,500 feet altitude in Mexico where everything except the coastline is high altitude... so I think using forced induction makes more sense than just doing all the other stuff. Also, I'd like to have the power at low revs and not have too rev it to the redline to get max power, so I guess a turbo is out (correct me if I'm wrong).
I hear some superchargers make an annoying whine and some turbos have that whistling tone too and top it off with a loud whistle when shifting (blowoff valve). But it seems a few superchargers don't seem to make that sound (judging by watching Youtube videos and my neighbors Mercedes 230 Kompressor). Honestly I hate that whining sound but I don't know how noticeable it is inside the car when cruising.. If I only hear it when I rev it high it's ok, but I don't want to hear a constant whine or whistle when driving 75-85mph on the highway.... As I've said I live at round 5,500 feet altitude in Mexico where everything except the coastline is high altitude... so I think using forced induction makes more sense than just doing all the other stuff. Also, I'd like to have the power at low revs and not have too rev it to the redline to get max power, so I guess a turbo is out (correct me if I'm wrong).
02-06-2008, 08:51 PM
#7
2nd Gear Member
Join Date: Dec 2007
Posts: 390
RE: 400whp
ORIGINAL: zash
I don't wanna spend more than $5k on the engine mods and I'm not going to work on it myself. The idea is to have somewhere around 400whp (350 minimum).
I hear some superchargers make an annoying whine and some turbos have that whistling tone too and top it off with a loud whistle when shifting (blowoff valve). But it seems a few superchargers don't seem to make that sound (judging by watching Youtube videos and my neighbors Mercedes 230 Kompressor). Honestly I hate that whining sound but I don't know how noticeable it is inside the car when cruising.. If I only hear it when I rev it high it's ok, but I don't want to hear a constant whine or whistle when driving 75-85mph on the highway.... As I've said I live at round 5,500 feet altitude in Mexico where everything except the coastline is high altitude... so I think using forced induction makes more sense than just doing all the other stuff. Also, I'd like to have the power at low revs and not have too rev it to the redline to get max power, so I guess a turbo is out (correct me if I'm wrong).
I don't wanna spend more than $5k on the engine mods and I'm not going to work on it myself. The idea is to have somewhere around 400whp (350 minimum).
I hear some superchargers make an annoying whine and some turbos have that whistling tone too and top it off with a loud whistle when shifting (blowoff valve). But it seems a few superchargers don't seem to make that sound (judging by watching Youtube videos and my neighbors Mercedes 230 Kompressor). Honestly I hate that whining sound but I don't know how noticeable it is inside the car when cruising.. If I only hear it when I rev it high it's ok, but I don't want to hear a constant whine or whistle when driving 75-85mph on the highway.... As I've said I live at round 5,500 feet altitude in Mexico where everything except the coastline is high altitude... so I think using forced induction makes more sense than just doing all the other stuff. Also, I'd like to have the power at low revs and not have too rev it to the redline to get max power, so I guess a turbo is out (correct me if I'm wrong).
S/c's are usually a constant whine, and get louder the higher the rpm's are obviously. Same goes for turbo's once u get over about 3000rpm's.
02-06-2008, 09:13 PM
#9
5th Gear Member
Join Date: Dec 2005
Location:
Posts: 2,005
RE: 400whp
the reason you hear the blow off valve more on a turbo car is because its released out in the atmosphere while superchargers got bypass, does teh same absic thing just recirculates it through the intake and back through the supercharger thats why its much quieter, my kb isnt a loud whine at all at 10psi and below.
