jt76

iTrader: (10)

I have a kytp front mount kit with a precision 76gts and a JGS 40mm wastegate. My engine is a
370 with 317 heads and a speed inc TU1. Boost is jumping to 14+ psi by 4500-5000 rpm! Should I look into a tial 44 or possibly something even bigger? This is Sluggish's old kit and it was able to control his TC78 backed up by a 370.. Hmm

MUSTANGBRKR02

iTrader: (91)

Should not have a problem controlling it. Are you sure that you have the correct spring and vacuum line routing going to it?

Nitroused383

iTrader: (10)

My 38mm turbosmart would control my TC76 just fine but when I swapped to the 76gts I had boost creep. I upgraded to a 46mm precision wg and still have issues with the cutout open. I believe the issue is the location of the wg merge. 90 degree merges are never ideal for waste gate priority.

jt76

iTrader: (10)

ugh. Not what i wanted to hear considering we have the same kit. What does yours hit?

98Camarod

iTrader: (43)

Hows your controller routed?

Nitroused383

iTrader: (10)

Cutout closed going through stock slp dual dual I can run as low as 6 lbs. Cutout open it will hit 15-16 lbs.

HIPSI

iTrader: (2)

I had a bad overboost issue with my jgs40 but my wg location was not in the best location,switched to a tial 60 and well u know the rest..

boss79z

iTrader: (1)

I have a kytp also. Mine boost creeps with a precision 46 mm.....3 inch to a bullet. Creeps up to about 12 lbs around 5600 rpm. Thats with a 7 lb spring in the gate.

jt76

iTrader: (10)

I bypassed it and am just running off the spring until i figure out what is going on.

My exhaust consists of a 3 foot downpipe dumped behind the K member :

Sweet_SS

I'm on a 376 ci and my 39mm gate is controlling my TC78 just fine. Try hooking up your controller and add another spring to the gate. See if that helps. If it doesn't, then that should be your problem...the wastegate that is. But don't add the spring and not hook up the controller. You already know what will happen.

denmah

iTrader: (2)

creep is commonly poor location instead of poor flow.

pics of hotside and WG location?

most people install the WG as a total afterthought on a turbo kit.
if you are gunna do that might as well install a 60mm so it can at least try to control the boost.

jt76

iTrader: (10)

Here is the wastegate location.. Will Tial springs work in the JGS?

LILHEMI

that design is straight HORRIBLE.

skinnies

iTrader: (33)

Yep that is your issue, bad placement.

Old Geezer

iTrader: (3)

scary!

1fast bird

iTrader: (22)

That's routed 180 degrees from exhaust flow. That needs to be changed for sure. Good news is your wastegate will work fine when routed properly

jt76

iTrader: (10)

LOL


This is a KYTP kit, i didn't build it. Others have the SAME kit. Has this been an issue? I would have expected more thought into the kit if this is indeed the issue..

Sweet_SS

Here's a pic of mine. Pic was taken at install and wasn't completed.

Marty Staggs

X2 - about as bad as it gets.

1sick-Z

iTrader: (3)

I have a Tnetics Evolution.. I creep 1.5 psi but always after the 1st shift. I do not really mind honestly it helps for traction.