Ported throttlebody ct4

[F1Scamp]

Installed the ported throttlebody and brisk plugs today on the ct4. What a weird setup for throttlebody placement. I'm assuming the tube under the throttlebody is for the crankcase ventilation system?

 

[1BadTundra]

Resurrecting this old thread... Thoughts and feelings on this mod long term?

 

[F1Scamp]

Hard to quantify, can't say I noticed any difference. By far the biggest was the jb4 then the downpipes. It's been in the 11.50's @ 123 on stock tires so it all adds up. Really need to get a tire under it.

 

[Grainofsand]

Hard to quantify, can't say I noticed any difference. By far the biggest was the jb4 then the downpipes. It's been in the 11.50's @ 123 on stock tires so it all adds up. Really need to get a tire under it.

Mid 11s with just jb4 and downpipe you say? And spark plugs? I'm guessing 93

 

[F1Scamp]

Jb4, soler throttle body, downpipes, spark plugs. 93 and a splash of boostane.

 

[Grainofsand]

I'm thinking that the TB gave some hp at least

 

[F1Scamp]

I'm sure it did, all of it was done within trips to the track so it's all jumbled together in there.

 

[Joszer]

I managed to get 12s flat with a throttle body and JB4 with 91 octane and a manual using the Dash Timer.

 

[Grainofsand]

I managed to get 12s flat with a throttle body and JB4 with 91 octane and a manual using the Dash Timer.

Your strictly 91 or can you also run 93?