qjet mods question

richie 2 · 12-20-2021, 11:29 AM

i have a fresh/new race prepped qjet...built before trans brakes came into play. much modification to prep for transbrake 327ci. SS application? (im showing my age i know lol...happy holidays all !)

Danny Ashley · 12-20-2021, 12:17 PM

You will be OK running it as is but when I was in the business, I plugged the secondary accelerator well tubes on any combination using a rev-limiter. When an engine is on the rev- limiter it can produce puddling in the intake causing an over-rich condition. My customers that had Racepaks reported it really cleaned up the launch and didn't affect down track metering. These are the two 1/8 inch diameter brass tubes in the airhorn. I tapped them to 3-48 and installed set screws. This allowed the customer an easy way to try plugged or unplugged tubes. You can remove them or pinch them off ( crude ). I had a few customers who tried this on a footbrake car with success but others experienced a bog which is usually the case. It depends on a few variables to make it work footbraking. Hope this helps.

richie 2 · 12-20-2021, 01:31 PM

thankyou danny. cheers !

12-20-2021, 11:29 AM	#1
richie 2 Senior Member Join Date: Feb 2009 Posts: 971 Likes: 425 Liked 205 Times in 93 Posts	qjet mods question i have a fresh/new race prepped qjet...built before trans brakes came into play. much modification to prep for transbrake 327ci. SS application? (im showing my age i know lol...happy holidays all !) Last edited by richie 2; 12-20-2021 at 11:33 AM.

12-20-2021, 12:17 PM	#2
Danny Ashley Member Join Date: Nov 2001 Location: Marion,In. Posts: 267 Likes: 60 Liked 110 Times in 29 Posts	Re: qjet mods question You will be OK running it as is but when I was in the business, I plugged the secondary accelerator well tubes on any combination using a rev-limiter. When an engine is on the rev- limiter it can produce puddling in the intake causing an over-rich condition. My customers that had Racepaks reported it really cleaned up the launch and didn't affect down track metering. These are the two 1/8 inch diameter brass tubes in the airhorn. I tapped them to 3-48 and installed set screws. This allowed the customer an easy way to try plugged or unplugged tubes. You can remove them or pinch them off ( crude ). I had a few customers who tried this on a footbrake car with success but others experienced a bog which is usually the case. It depends on a few variables to make it work footbraking. Hope this helps.

12-20-2021, 01:31 PM	#3
richie 2 Senior Member Join Date: Feb 2009 Posts: 971 Likes: 425 Liked 205 Times in 93 Posts	Re: qjet mods question thankyou danny. cheers !