I have a j spec 1.8 dohc vtec engine in my 99 civic hatch. I believe the OEM throttle body size is 62mm at the inlet and then tapers to 60mm at the IM. I ordered a jeg's 65mm TB to fight at ticket, (which i'm not gonna go into... long story, but they did drop it a bit so better than nothing )

I was just gonna send it back but I think I might reconsider. It was around 320 with the sensors included. I thought that TB weren't really worth the money IMO. It's it worth it at all? Does anyone have an after market on installed that they were happy with?

I might be going turbo soon, so would this make even more of a difference then? or no...?

Post your experiences / info / opinions

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sivik2nr &raquo;</TD></TR><TR><TD CLASS="quote">I have a j spec 1.8 dohc vtec engine in my 99 civic hatch. I believe the OEM throttle body size is 62mm at the inlet and then tapers to 60mm at the IM. I ordered a jeg's 65mm TB to fight at ticket, (which i'm not gonna go into... long story, but they did drop it a bit so better than nothing )

I was just gonna send it back but I think I might reconsider. It was around 320 with the sensors included. I thought that TB weren't really worth the money IMO. It's it worth it at all? Does anyone have an after market on installed that they were happy with?

I might be going turbo soon, so would this make even more of a difference then? or no...?

Post your experiences / info / opinions

</TD></TR></TABLE>
with a good flowing intake and manifold it would give you a few hp. And with cams even more. I would say go for it.

 

Your better bet is a different intake manifold like the AEBS or the Skunk2. But it would be more beneficial to run both the larger Throttle body with the better IM so I'd keep it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">Your better bet is a different intake manifold like the AEBS or the Skunk2. But it would be more beneficial to run both the larger Throttle body with the better IM so I'd keep it.</TD></TR></TABLE>
I agree with Kendall...get atleast a type R mani and port-match the new TB to the plenum...however, I would have gone bigger than 65mm.

To answer the question, it is worth it to get an big bore TB.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builthatch &raquo;</TD></TR><TR><TD CLASS="quote">I agree with Kendall...get atleast a type R mani and port-match the new TB to the plenum...however, I would have gone bigger than 65mm.</TD></TR></TABLE>

But the ITR manifold won't bolt onto the P72 head. Your best bet is the AEBS manifold, it outflows the ITR manifold and costs under $200. The Skunk2 is a direct copy of the ITR manifold but is available for both the PR3 (B16/ITR) head, and the P72 (GSR) head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">

But the ITR manifold won't bolt onto the P72 head. </TD></TR></TABLE>

Oh...doh!

i forgot the days where you had to redrill/ reflange are over...sorry I am stuck in a time warp over here : )

 

What makes it funny is that was your 666th post. All is well, not to worry.

 

Ok then I'm gonna keep it I think. I was planning on ordering the skunk2 stage 2 cams, valves, springs retainers, Intake manifold, and then a header. Possible a ECU chip too. I heard that skunk2 chips the P72. Can i still pass emmisions with that chip?