Just upgraded from 4.44 to 4.77!
01-03-2004, 10:36 AM
#52
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At 139 mph, I could hear engine sound. Not necessarily from the exhaust tips, more so from the engine compartment. I did this with the top down and I know I heard engine notes coming from the front of the car.
I used to have a 67 Plymouth Barracuda when I was 17. The engine was completely remanufactured. Crank, cam, mains, rods, pistons, rings, lifters, timing gears, timing chain and oil pump. I installed Hedman headers and had a muffler shop install new pipes and glasspacks. The engine was a 273 CI small block V8 with full floating pistons and solid lifters. It was bored 30 over.
Believe it or not, this V8 would rev to 8,000 rpm. At 125-130 mph, this thing would SCREAM. I could definitely hear engine notes coming not just from the engine compartment, I could hear beautiful notes coming from the glasspacks at the rear of the car. I swear to god this thing would scream.
Getting back to the S2K, I have read posts regarding the Toda. The walls of the Toda are thinner than that of the stock header, Hence more sound is heard from around the engine area. A good after market cat back would also yield more notes from the back of the car. A straight through single would be to dramatic for me (also illegal), but I would definitely consider a Amuse T1000 dual.
If I could hear engine notes at 139 mph with the top down in my stock S2k, then with the mods, I would distinctively hear engine notes big time. It would scream.
I used to have a 67 Plymouth Barracuda when I was 17. The engine was completely remanufactured. Crank, cam, mains, rods, pistons, rings, lifters, timing gears, timing chain and oil pump. I installed Hedman headers and had a muffler shop install new pipes and glasspacks. The engine was a 273 CI small block V8 with full floating pistons and solid lifters. It was bored 30 over.
Believe it or not, this V8 would rev to 8,000 rpm. At 125-130 mph, this thing would SCREAM. I could definitely hear engine notes coming not just from the engine compartment, I could hear beautiful notes coming from the glasspacks at the rear of the car. I swear to god this thing would scream.
Getting back to the S2K, I have read posts regarding the Toda. The walls of the Toda are thinner than that of the stock header, Hence more sound is heard from around the engine area. A good after market cat back would also yield more notes from the back of the car. A straight through single would be to dramatic for me (also illegal), but I would definitely consider a Amuse T1000 dual.
If I could hear engine notes at 139 mph with the top down in my stock S2k, then with the mods, I would distinctively hear engine notes big time. It would scream.
01-08-2004, 10:22 AM
#53
I just ordered a 4.77 and I'm super stoked.
Anyway, I was thinking about the mustang thing and what I haven't heard anybody mention was that gearing is all about the power curve of the engine in question! On a torquey mustang it doesn't make a whole lot of sense to narrow the usable power band when the engines output is so torquey and wide. On the S2k it's a different story. The power band is peaky and narrow so staying within that rpm range is crucial. Traction is also less of an issue for us because of the lack of torque.
Just wanted to get that out there.
Anyway, I was thinking about the mustang thing and what I haven't heard anybody mention was that gearing is all about the power curve of the engine in question! On a torquey mustang it doesn't make a whole lot of sense to narrow the usable power band when the engines output is so torquey and wide. On the S2k it's a different story. The power band is peaky and narrow so staying within that rpm range is crucial. Traction is also less of an issue for us because of the lack of torque.
Just wanted to get that out there.
01-09-2004, 12:12 AM
#55
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Originally posted by pjonkheer
I have FI...
Does it make more sense to get the 4.57 or the 4.77??
I rarely do any highway driving so I'm not worried about that.
Thanks.
I have FI...
Does it make more sense to get the 4.57 or the 4.77??
I rarely do any highway driving so I'm not worried about that.
Thanks.
01-10-2004, 06:20 AM
#59
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Thread Starter
UPDATE: Gtech results sorta!
Ok it is very cold here in NJ. I went out on Thursday to try some Gtech runs during my lunch hour. The temp was probably around 15.
The problem I had was with traction on the launch. I have snow tires on blizzack ws-50's
ok I went to where i always go a very quiet back road I can usually get an 1/8 mile run in. I get ready and do a 5k launch. I just spun the wheels all the way up to the rev limiter. I lay a huge patch of double track rubber on the road and get semi-sideways. I ease off and gain tration at say 8000 rpm. I continue and row the box til somewhere in forth gear. I was hauling ass and had to brake heavy before the turn came up. Dam the ws-50s are really really scary under hard braking all wobbelly and floaty. But anyway even with the botched launch
I managed a 5.4 to 60mph and a 8.9 @ 82 mph in the 1/8. my 0 to 60 feet was 2.55. So obviously The launch was the problem. I believe with s02's i should be able to get a consistant time of around 5 seconds to 60 mph. After that run I was like screw it no more runs. The ws-50s in the extreme cold are very scary and I though i was going to lose it under braking. I also had the hard top on which adds wieght and I also had a full tank of Nitrous sitting in the trunk which is 25# and a 40# bag of salt in the trunk. These are in there so I can get good traction on the hills of North Jersey when it snows.
The best time I got with the 4.10 was a 5.4 to 60 with a perfect launch no hardtop no salt no tank of
nitrous and a 0 to 60 ft. of 2.2 running on fumes. but I would say the average time for the runs was between 5.7 and 5.9
The best time I got with the 4.44 was 5.2 to 60 with a perfect launch no hardtop, no salt, The tank was in the trunk. Full tank of gas. 0 to 60 ft time of 2.1 But the average time for the runs was say between 5.4 and 5.7
No Nitrous was used in any run. I have a vfac, aem cai, spoon thermo and switch, gutted cat, after market exahust.
And of course the 4.77 ring and pinion. Vtec lowered to 4800 rpm
So poor planning on my part. With the extra wieght in the car and the ws-50's are impossible to get traction with.
The biggest difference between the 4.44 and the 4.10 was no launch run. The 4.44 was able to top the 4.10 by about .4 seconds to 60 mph when no launch was involved. I have a feeling the 4.77 will be slightly less diffence verse the 4.44 maybe .2 seconds faster to 60mph then the 4.44 because of the extra shift
it takes about 2/10ths of a second for that shift right before 60. Ok hopefully next week it will warm up some and I can get some good runs in. I should be able to post some graphs showing the difference between all three. I just posted this to give ya a teaser. I thought that was a great 1/8 mile run considering my 0 to 60 feet sucked real bad.
Ok it is very cold here in NJ. I went out on Thursday to try some Gtech runs during my lunch hour. The temp was probably around 15.
The problem I had was with traction on the launch. I have snow tires on blizzack ws-50's
ok I went to where i always go a very quiet back road I can usually get an 1/8 mile run in. I get ready and do a 5k launch. I just spun the wheels all the way up to the rev limiter. I lay a huge patch of double track rubber on the road and get semi-sideways. I ease off and gain tration at say 8000 rpm. I continue and row the box til somewhere in forth gear. I was hauling ass and had to brake heavy before the turn came up. Dam the ws-50s are really really scary under hard braking all wobbelly and floaty. But anyway even with the botched launch
I managed a 5.4 to 60mph and a 8.9 @ 82 mph in the 1/8. my 0 to 60 feet was 2.55. So obviously The launch was the problem. I believe with s02's i should be able to get a consistant time of around 5 seconds to 60 mph. After that run I was like screw it no more runs. The ws-50s in the extreme cold are very scary and I though i was going to lose it under braking. I also had the hard top on which adds wieght and I also had a full tank of Nitrous sitting in the trunk which is 25# and a 40# bag of salt in the trunk. These are in there so I can get good traction on the hills of North Jersey when it snows.
The best time I got with the 4.10 was a 5.4 to 60 with a perfect launch no hardtop no salt no tank of
nitrous and a 0 to 60 ft. of 2.2 running on fumes. but I would say the average time for the runs was between 5.7 and 5.9
The best time I got with the 4.44 was 5.2 to 60 with a perfect launch no hardtop, no salt, The tank was in the trunk. Full tank of gas. 0 to 60 ft time of 2.1 But the average time for the runs was say between 5.4 and 5.7
No Nitrous was used in any run. I have a vfac, aem cai, spoon thermo and switch, gutted cat, after market exahust.
And of course the 4.77 ring and pinion. Vtec lowered to 4800 rpm
So poor planning on my part. With the extra wieght in the car and the ws-50's are impossible to get traction with.
The biggest difference between the 4.44 and the 4.10 was no launch run. The 4.44 was able to top the 4.10 by about .4 seconds to 60 mph when no launch was involved. I have a feeling the 4.77 will be slightly less diffence verse the 4.44 maybe .2 seconds faster to 60mph then the 4.44 because of the extra shift
it takes about 2/10ths of a second for that shift right before 60. Ok hopefully next week it will warm up some and I can get some good runs in. I should be able to post some graphs showing the difference between all three. I just posted this to give ya a teaser. I thought that was a great 1/8 mile run considering my 0 to 60 feet sucked real bad.
