What is needed with Trex Cam
10-06-2011, 07:24 AM
#22
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i plan on doing gears as soon as i get a new rear.. i dont want to blow it.. and i plan on doing heads but as of right now i just want the cam. a yank 3800 stall wont be fine?
10-06-2011, 11:09 AM
#23
No, if you are wanting a street car then you should run a raptor cam. It sounds just as mean but you dont have to go so extreme with your setup. The TREX you are going to have to spin 7400 RPM to make any kind of power out of it. I belive if you are wanting to run 3800 stall, to go ahead and put a yank 4000 in it and 4:10s with the raptor with a good tune and it should fly. that way you wont have to worry about spinning a stock motor 7400 and grenading something.
10-06-2011, 02:47 PM
#24
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i want to run 11.50s.. right now im running 12.50s with ls6 intake and 3800 yank converter with stock weight.. what would be a good cam to do this? raptor? bc only thing im going to do it a cam headers y pipe and exhaust...
10-06-2011, 07:22 PM
#25
If you put a raptor in your car with that converter and up the gear to 4:10s you should be able to with a good tune run 10's. This also depends on what exhaust you have on the car. I was running 11.20's in a full weight trans am with 3.42 gears, a 3800 stall and true duals with a good tune and I only had a LS1 intake and a stock cam. your car should be faster than 12.5. What suspension do you have on the car? What gear? What exhaust? what heads? Tune???
10-06-2011, 08:39 PM
#27
ok, heres the deal. Before you go buy a cam take 400.00 and go buy the following.
1. wolfe racecraft subframe connectors $115.00
2. Lakewood lower control arms $80.00
3. Bolt on lower control arm relocation brackets $99.00
4. Remove the front sway bar $0.00
Now you can actually hook...
Next, Put new gears in her...3.73 or higher....preferrably 4.10 if you are going to do a cam. Now you are going to need a good solid exhaust system. single 4" or true duals with long tubes. Now get a better tune. It sounds like you are having some tuning issues if your setup now is only going 12.5.
With only the aforementioned parts and a good sticky tire that should put you in the 11's without a problem. Try and not do too many things at once as it does make it difficult to dial in and tune a car. The best possible advice I can give you is to mod the car slow and make sure it is perfect at every stage. With just the info I have given you every one of my friends had 11 sec daily driven f-bodies with stock motors.
1. wolfe racecraft subframe connectors $115.00
2. Lakewood lower control arms $80.00
3. Bolt on lower control arm relocation brackets $99.00
4. Remove the front sway bar $0.00
Now you can actually hook...
Next, Put new gears in her...3.73 or higher....preferrably 4.10 if you are going to do a cam. Now you are going to need a good solid exhaust system. single 4" or true duals with long tubes. Now get a better tune. It sounds like you are having some tuning issues if your setup now is only going 12.5.
With only the aforementioned parts and a good sticky tire that should put you in the 11's without a problem. Try and not do too many things at once as it does make it difficult to dial in and tune a car. The best possible advice I can give you is to mod the car slow and make sure it is perfect at every stage. With just the info I have given you every one of my friends had 11 sec daily driven f-bodies with stock motors.
10-06-2011, 08:53 PM
#28
If you put a raptor in your car with that converter and up the gear to 4:10s you should be able to with a good tune run 10's. This also depends on what exhaust you have on the car. I was running 11.20's in a full weight trans am with 3.42 gears, a 3800 stall and true duals with a good tune and I only had a LS1 intake and a stock cam. your car should be faster than 12.5. What suspension do you have on the car? What gear? What exhaust? what heads? Tune???
10-06-2011, 10:31 PM
#29
no nitrous...I was running solid 7.4's in the 1/8. I had the back seats out and the passenger seat out.
Best pass on original setup was:
1.57 60'
1/8 mile 7.47 @90.00
1/4 mile 11.28 @119.6
The car had an incredible tune by Chris Robinson and had the suspension and exhaust setup assistance done by Jimmy & Mike Hutto and Lane
Best pass on original setup was:
1.57 60'
1/8 mile 7.47 @90.00
1/4 mile 11.28 @119.6
The car had an incredible tune by Chris Robinson and had the suspension and exhaust setup assistance done by Jimmy & Mike Hutto and Lane
10-06-2011, 11:17 PM
#31
TECH Senior Member
10-07-2011, 01:16 AM
#32
7.4@90 mph does not come out to an 11.2@119. Period.
Short track or the like..
Not to mentioned he had a stock cam, stock intake, 342s, small converter.
A high 1.5 with 90mph 1/8 is impossible to run 11.2s. Period. I'll put everything I own in the world on it. That puts you picking up 29mph on the back half, that's similar to a turbo cars back half, not stock internal.
I run 1.50 short times, 7.31@94.5mph.. I would be happy with an 11.2-.3@118-120 in the 1/4.
I'm not saying youre lying, I'm saying something was up. You can't run over 1 full second and 10mph faster than every other car with similar mods.
Op, don't expect to change gears and the cam and run 10s, ill tell you that those alone, you wont run 10s, mark my words.
Short track or the like..
Not to mentioned he had a stock cam, stock intake, 342s, small converter.
A high 1.5 with 90mph 1/8 is impossible to run 11.2s. Period. I'll put everything I own in the world on it. That puts you picking up 29mph on the back half, that's similar to a turbo cars back half, not stock internal.
I run 1.50 short times, 7.31@94.5mph.. I would be happy with an 11.2-.3@118-120 in the 1/4.
I'm not saying youre lying, I'm saying something was up. You can't run over 1 full second and 10mph faster than every other car with similar mods.
Op, don't expect to change gears and the cam and run 10s, ill tell you that those alone, you wont run 10s, mark my words.
10-07-2011, 09:56 AM
#34
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I'm hooking fine with no suspension life because I'm only running 12.50s with 1.70's 60ft.. I use only hoosier quick time pros... I was happy when I saw my times with only a converter and intake..... the place I go to is one if the best in ny so I think my tune is fine.. I'm not saying there isnt any better out there. and I'm putting on pacesetter long tube and magnaflow exhaust..
10-07-2011, 11:35 AM
#36
The TREX you are going to have to spin 7400 RPM to make any kind of power out of it. I belive if you are wanting to run 3800 stall, to go ahead and put a yank 4000 in it and 4:10s with the raptor with a good tune and it should fly. that way you wont have to worry about spinning a stock motor 7400 and grenading something.
? You dont have to spin the TRex to 7400. It STARTS making power around 3-3.5k With the right set up. And why would he put 4.10s in an auto for a street car? OP
If you wanna run the TRex it will be very fun on the street but you NEED to have it set up properly. You need gears, at least a 3.8k stall, full bolt ons and I would highley recommend decking the heads and flycutting the pistons to up the compression. These are the mods you WILL need to get the TRex to go like it should. If you just throw it in there with stock gears and a few bolt ons it will not be near its potential and youll probably get pulled on by a 224 lol.
How big is this "T Rex" you speak of
10-07-2011, 11:46 AM
#37
7.4@90 mph does not come out to an 11.2@119. Period.
Short track or the like..
Not to mentioned he had a stock cam, stock intake, 342s, small converter.
A high 1.5 with 90mph 1/8 is impossible to run 11.2s. Period. I'll put everything I own in the world on it. That puts you picking up 29mph on the back half, that's similar to a turbo cars back half, not stock internal.
I run 1.50 short times, 7.31@94.5mph.. I would be happy with an 11.2-.3@118-120 in the 1/4.
I'm not saying youre lying, I'm saying something was up. You can't run over 1 full second and 10mph faster than every other car with similar mods.
Op, don't expect to change gears and the cam and run 10s, ill tell you that those alone, you wont run 10s, mark my words.
Short track or the like..
Not to mentioned he had a stock cam, stock intake, 342s, small converter.
A high 1.5 with 90mph 1/8 is impossible to run 11.2s. Period. I'll put everything I own in the world on it. That puts you picking up 29mph on the back half, that's similar to a turbo cars back half, not stock internal.
I run 1.50 short times, 7.31@94.5mph.. I would be happy with an 11.2-.3@118-120 in the 1/4.
I'm not saying youre lying, I'm saying something was up. You can't run over 1 full second and 10mph faster than every other car with similar mods.
Op, don't expect to change gears and the cam and run 10s, ill tell you that those alone, you wont run 10s, mark my words.
10-07-2011, 11:49 AM
#38
[QUOTE=Cosmos;15480352]Are you serious? You dont have to spin the TRex to 7400. It STARTS making power around 3-3.5k With the right set up. And why would he put 4.10s in an auto for a street car?
If you call Thunder Racing (the people that designed the cam) and ask for Shane, what I stated is exactly what he will tell you. The Raptor cam you dont have to pull 7400, that one will make power around 6600-6800 and make power earlier, The Trex does not make power until over 4k and stretches to over 7k. Quoting Thunder Racing.
? You dont have to spin the TRex to 7400. It STARTS making power around 3-3.5k With the right set up. And why would he put 4.10s in an auto for a street car? If you call Thunder Racing (the people that designed the cam) and ask for Shane, what I stated is exactly what he will tell you. The Raptor cam you dont have to pull 7400, that one will make power around 6600-6800 and make power earlier, The Trex does not make power until over 4k and stretches to over 7k. Quoting Thunder Racing.
