TREX question........again with nitrous too
TREX question........again with nitrous too Just wanted some input from you guys. I spoke to Thunder Racing but I dont know if the guy I talked to is super knowledgeable so I wanted to get your opinions.
I want to do the TREX package. First here is my car for the background and important info:
93 RX7 with a 2001 LS1
2800Lbs vehicle weight
4.10 rear gearing but will be going down in gear to 3.55 or 3.73
200-4r transmission with a transbrake
SS3800E torque converter
NXL direct port kit currently running 120shot but maybe uping to a 180shot
255 lph walboro fuel pump with a fuel pressure regulator at the engine
Stock injectors
My questions are:
1. Do I need to upgrade my injectors to 30#'s??
2. They said I should have a 4000 stall converter but I am only pushing a 2850lb car so is the 3800 stall gonna be enough with 4.1's too? Then how about with the 3.55 or the 3.73's?
3. What should I have them grind the cam so it will work well on the spray or have they already done this
4. Have any of you sent them your edit file and let them change it then send it back for a "mail order" tune?
5. Does $550 seem a little excessive to anyone else for sending an edit file?
6. If I do the install what should I set the fuel pressure to? Still 58psi or up it?
Give me your opinions I want to order this cam NOW but I am hesitant about them saying it wont work with a 3800 stall converter and also the $550 for them to send me my edit file back.
Thanks
Mike
I want to do the TREX package. First here is my car for the background and important info:
93 RX7 with a 2001 LS1
2800Lbs vehicle weight
4.10 rear gearing but will be going down in gear to 3.55 or 3.73
200-4r transmission with a transbrake
SS3800E torque converter
NXL direct port kit currently running 120shot but maybe uping to a 180shot
255 lph walboro fuel pump with a fuel pressure regulator at the engine
Stock injectors
My questions are:
1. Do I need to upgrade my injectors to 30#'s??
2. They said I should have a 4000 stall converter but I am only pushing a 2850lb car so is the 3800 stall gonna be enough with 4.1's too? Then how about with the 3.55 or the 3.73's?
3. What should I have them grind the cam so it will work well on the spray or have they already done this
4. Have any of you sent them your edit file and let them change it then send it back for a "mail order" tune?
5. Does $550 seem a little excessive to anyone else for sending an edit file?
6. If I do the install what should I set the fuel pressure to? Still 58psi or up it?
Give me your opinions I want to order this cam NOW but I am hesitant about them saying it wont work with a 3800 stall converter and also the $550 for them to send me my edit file back.
Thanks
Mike
Launching!
Joined: May 2004
Posts: 295
Likes: 0
From: Dallas, Tx
$550 seems a little high, my tuner did my full tune (i have a cam) on the dyno and lifetime retunes (he can actually know how my car is responding instead of me just telling him and him sending me something that may throw the A/F way off) for $450.Its not like the cam wont work with your stall, its just that that cam is designed to work with a bigger stall since it makes most of its power up top, but you do have a light car and its only 200 RPM's more.
