[carlythecamaro]

Hello all, I have 1 7/8 in long tube headers and a K&N cold intake. I was looking into getting a ported throttle body and making sure the car is properly tuned. Would I notice any difference in the car if I did this? Thanks

[Joshinator99]

Originally Posted by carlythecamaro

Hello all, I have 1 7/8 in long tube headers and a K&N cold intake. I was looking into getting a ported throttle body and making sure the car is properly tuned. Would I notice any difference in the car if I did this? Thanks

Better off with an OEM 95mm TB if you need more airflow than the stock 87mm one. Super easy to tune and better performance than a ported 87.

[carlythecamaro]

Originally Posted by Joshinator99

Better off with an OEM 95mm TB if you need more airflow than the stock 87mm one. Super easy to tune and better performance than a ported 87.

Could you post a link to it?

[Joshinator99]

Originally Posted by carlythecamaro

Could you post a link to it?

Believe this is the one:
https://www.gmpartsdirect.com/oem-pa...bC12OC1nYXM%3D

You’ll need this too:
https://katechengines.com/i-30497839...m-to-87mm.html

[carlythecamaro]

Originally Posted by Joshinator99

Believe this is the one:
https://www.gmpartsdirect.com/oem-pa...bC12OC1nYXM%3D

You’ll need this too:
https://katechengines.com/i-30497839...m-to-87mm.html

Will these two items be the only thing I'd need to complete the instal?

[Joshinator99]

Originally Posted by carlythecamaro

Will these two items be the only thing I'd need to complete the instal?

Aside from gaskets & bolts, yep.

[Booher]

I have a 95mm zr1 tb ported to 100mm by solar with an adapter plate to a ported lt1 manifold if you are interested. It will bolt to unported lt1 manifold as well, just miss out on a little extra air. Been lazy and haven't posted it up yet, figured I'd throw it out there.

[adamjwilson]

I have a Soler 95mmTB, adapter , and controller if interested.

[Spudsmaro]

Originally Posted by carlythecamaro

Hello all, I have 1 7/8 in long tube headers and a K&N cold intake. I was looking into getting a ported throttle body and making sure the car is properly tuned. Would I notice any difference in the car if I did this? Thanks

Get the 95mm throttle body from rock auto it’s under 2019 corvette zr1. It’s $200+shipping and taxes. Also get a lt2 intake manifold from rock auto as well about $200 too. You will need a tb adapter I personally went with the solar performance adapter ($70 on ebay) because it opens up to allow the 95mm tb plate to pass thru without any contact. Not sure about Katech but I’m sure they have just as good quality.

Compared to the msd being roughly $1500 and a Nick Williams tb being roughly $800
I’d say $460-$500 for just about the same gains is well worth it.

#budgetbuild

[wnta1ss]

Originally Posted by carlythecamaro

Hello all, I have 1 7/8 in long tube headers and a K&N cold intake. I was looking into getting a ported throttle body and making sure the car is properly tuned. Would I notice any difference in the car if I did this? Thanks

Honestly you'd likely gain very little hp, if any, from the ported 87. I had a v-max ported 87, and I did not see any gain from it, which agrees with a dyno test that I know of (zero hp gain). Other members have posted dyno tests of ported 87s, one reported a 2hp gain, and another reported a 0.5hp gain.

Comment on putting a 95mm onto the LT1 manifold with a restrictor plate like some of these guys are suggesting. Choking down the 95 by putting it onto an 87mm hole would mean that it's then not acting like a real 95 anymore. Meaning that you would not get the full potential from it. The proper way to use a 95 is with a manifold entrance that is large enough not to block it. This can be done with an MSD manifold (has 103mm opening) or an LT2 manifold that is max-ported by hogging the entry out past the o-ring groove (so then would need to make a gasket for the t/b because the o-ring is now gone). WITH a proper manifold for it, then yes, the 95 is good in my experience.

[KingLT1]

As mentioned above...anything larger than a ported 87mm gains you little on a stock manifold. The intake manifold opening has to be opened up to the same size as the larger throttle body to see any real gains.

[carlythecamaro]

Originally Posted by Spudsmaro

Get the 95mm throttle body from rock auto it’s under 2019 corvette zr1. It’s $200+shipping and taxes. Also get a lt2 intake manifold from rock auto as well about $200 too. You will need a tb adapter I personally went with the solar performance adapter ($70 on ebay) because it opens up to allow the 95mm tb plate to pass thru without any contact. Not sure about Katech but I’m sure they have just as good quality.

Compared to the msd being roughly $1500 and a Nick Williams tb being roughly $800
I’d say $460-$500 for just about the same gains is well worth it.

#budgetbuild

I was debating on going with the MSD but if I would see the same results I may as well go with the LT2

[carlythecamaro]

Originally Posted by wnta1ss

Honestly you'd likely gain very little hp, if any, from the ported 87. I had a v-max ported 87, and I did not see any gain from it, which agrees with a dyno test that I know of (zero hp gain). Other members have posted dyno tests of ported 87s, one reported a 2hp gain, and another reported a 0.5hp gain.

Comment on putting a 95mm onto the LT1 manifold with a restrictor plate like some of these guys are suggesting. Choking down the 95 by putting it onto an 87mm hole would mean that it's then not acting like a real 95 anymore. Meaning that you would not get the full potential from it. The proper way to use a 95 is with a manifold entrance that is large enough not to block it. This can be done with an MSD manifold (has 103mm opening) or an LT2 manifold that is max-ported by hogging the entry out past the o-ring groove (so then would need to make a gasket for the t/b because the o-ring is now gone). WITH a proper manifold for it, then yes, the 95 is good in my experience.

If I get the 95mm what would be the better option, the MSD or LT2? Ive read that the same HP can be gained by using either the MSD or LT2

[6spdhyperblue]

With the current options available I’d only go 103 with the msd. The lesser plenum volume likes the inlet flow as well.

I’d go ported 87 or stock 95(ported throat on intake) with the lt2