First Mods for ZL1???

[12oclockshadow]

My first two mods were intake and headers no cats. The headers really changed the car in a good way. Great sound with factory mufflers. Do headers and see how you like the sound before spending on a catback.

[diddies]

So I am going to order the TB and send it to get it ported through the link below. Please let me know if you would get a different one. Is there any other mods that you would recommend that are necessary?

ACDelco 217-3153 GM Original Equipment Fuel Injection Throttle Body with Throttle Actuator https://www.amazon.com/dp/B001NZZ9K2..._L8c1Cb5KN48Y2

[Vegas Bound]

Originally Posted by diddies

I am curious to what you had done to your car?

LSX376 B-8 crate motor, LSA supercharger, 2.55/9.5 pulleys, GT9 cam, Stainlessworks LTH, 1300 injectors, e85, meth, 4L80e, DSS one piece driveshaft, ZL1 rear cradle, 3.73 diff and axles, Lots of BMR rear suspension stuff, BC Racing Type BR coilovers. Just the normal bolt on stuff.

[Vegas Bound]

Originally Posted by diddies

So I am going to order the TB and send it to get it ported through the link below. Please let me know if you would get a different one. Is there any other mods that you would recommend that are necessary?

ACDelco 217-3153 GM Original Equipment Fuel Injection Throttle Body with Throttle Actuator https://www.amazon.com/dp/B001NZZ9K2..._L8c1Cb5KN48Y2

I have no ported parts on my car. Ported TB doesn't add hp or torque, so why waste the money? Also, they have been known to cause idle issues.

[DrkPhx]

Originally Posted by Vegas Bound

I have no ported parts on my car. Ported TB doesn't add hp or torque, so why waste the money? Also, they have been known to cause idle issues.

Hp increase depends on your mods, but it definitely helps with throttle response especially on a stock or near stock car. Some hand ported TB's may cause issues if they're over ported, but I've had 2 different VMAX ported TB's without issues.

[RobZL1]

You can also re-tune the throttle mapping to get rid of the "dead-pedal" at the first part of the pedal travel. Makes a lot of difference.

[diddies]

Originally Posted by DrkPhx

Hp increase depends on your mods, but it definitely helps with throttle response especially on a stock or near stock car. Some hand ported TB's may cause issues if they're over ported, but I've had 2 different VMAX ported TB's without issues.

So is my link that I attached fine to buy and send to Vmax to port?

[DrkPhx]

^^^ Yes that works. Same one I still have.

[diddies]

Originally Posted by DrkPhx

^^^ Yes that works. Same one I still have.

Like I stated, I have the rotofab cai coming in the mail with a catch can and will shortly get the ported TB on there. I see everyone mention an isolator to change out. Is this something I could do myself as I can’t find any videos on this or should a shop do this? Also, any other quick mods you would recommend?

[DrkPhx]

I did mine myself. The isolator is a pretty simple job imo, but I do my own installs and tuning. Quick note: With the CAI and ported TB you should get it tuned as well.

[Vegas Bound]

If you are going to do a CAI and TB, get headers (long tube) at the same time and only tune once.

[diddies]

Originally Posted by DrkPhx

I did mine myself. The isolator is a pretty simple job imo, but I do my own installs and tuning. Quick note: With the CAI and ported TB you should get it tuned as well.

I planned on getting it tuned. Would it be okay to drive for a bit without a tune though.

[diddies]

Originally Posted by Vegas Bound

If you are going to do a CAI and TB, get headers (long tube) at the same time and only tune once.

Ok will do. Probably looks long tube. Also should I do some sort of pulley?

[diddies]

Originally Posted by DrkPhx

I did mine myself. The isolator is a pretty simple job imo, but I do my own installs and tuning. Quick note: With the CAI and ported TB you should get it tuned as well.

Do you know if any instructions out there because I couldn’t find anything?