Anything absolutely pertinent I need to know before I install my Turbo?

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
drifts14x
Posts: 382
Joined: Tue Mar 18, 2003 6:00 am
Car: Cars, Motorcycles, Drifting
Contact:

Post

Hey there guys, I'm putting my JGS manifold in the shop tomorrow to get welded, and I wanted to know if there is anything I absolutely must know before I put my turbo together, hopefully this weekend. I have my S-AFC in, I have 370cc SR Injectors, I have an intercooler, Oil lines, oil pan, blow off valve, basically everything required to install this sucker soon. Now, is there any special things I need to know about the timing, AIV Removal, O2 Sensor Location, anything at all that could potentially cause damage to my car. If it helps, I have a KA24DE, an RX-7 Turbo II Compressor, a 1G DSM Intercooler, and access to a Wideband for tuning.


crzycav86
Posts: 3836
Joined: Tue Aug 05, 2003 1:28 pm
Car: 93 Nissan 240SX KAT

Post

All I have to advise is be wary of murphy's law... and come back here for advice when you run into trouble..

Good luck!

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

Post

drifts14x wrote:Hey there guys, I'm putting my JGS manifold in the shop tomorrow to get welded, and I wanted to know if there is anything I absolutely must know before I put my turbo together, hopefully this weekend. I have my S-AFC in, I have 370cc SR Injectors, I have an intercooler, Oil lines, oil pan, blow off valve, basically everything required to install this sucker soon. Now, is there any special things I need to know about the timing, AIV Removal, O2 Sensor Location, anything at all that could potentially cause damage to my car. If it helps, I have a KA24DE, an RX-7 Turbo II Compressor, a 1G DSM Intercooler, and access to a Wideband for tuning.
Wait... you have a twin scroll turbocharger and you are putting it on a typical manifold? Or are you changing the housing to a single scroll?

Install the 02 about 18" downstream of the turbo.

Timing, I would retard the base timing about 5 - 7 degs. if you have no other method of controlling it.

Remove and block off the AIV system.

Your EGR might not like the high pressure of the exhaust system. I would more than likely remove it in your case.

User avatar
Toahk
Posts: 1130
Joined: Sat Jan 18, 2003 4:02 pm
Car: 97 ....
Contact:

Post

5-7 deg of retard is too much if you are running low boost. do .5 deg retard for each lb of boost. Have access to a car to drive to the auto parts store because more than likely you'll need a lot of little things that break and or need to be reworked.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

Post

Toahk wrote:5-7 deg of retard is too much if you are running low boost. do .5 deg retard for each lb of boost. Have access to a car to drive to the auto parts store because more than likely you'll need a lot of little things that break and or need to be reworked.
I would suggest .75 deg. / lb.

The last thing you want is a motor popping cause of excessive timing.

Plus, he doesn't mention boost pressure... so I took a guess at 10 psi being relatively within reason.

User avatar
Toahk
Posts: 1130
Joined: Sat Jan 18, 2003 4:02 pm
Car: 97 ....
Contact:

Post

I think the stock boost on a rx7 turbo is 7psi. .5 deg of retard per lb is fairly safe.

drifts14x
Posts: 382
Joined: Tue Mar 18, 2003 6:00 am
Car: Cars, Motorcycles, Drifting
Contact:

Post

This is the stuff I was talking about, the turbo runs 6.7PSI Exactly so I will start with the .75 deg/lb and adjust later. What was that whole thing about the twin scroll turbocharger, I know that it has what looks like two ports in it, but I was just going to have them make a flange that basically mates the Manifold to the turbo with no provisions for that. I'm interested, by all means tell me anything else that you think is necessary.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

Post

drifts14x wrote:This is the stuff I was talking about, the turbo runs 6.7PSI Exactly so I will start with the .75 deg/lb and adjust later. What was that whole thing about the twin scroll turbocharger, I know that it has what looks like two ports in it, but I was just going to have them make a flange that basically mates the Manifold to the turbo with no provisions for that. I'm interested, by all means tell me anything else that you think is necessary.
The turbo is a twin scroll type... it has a specially designed manifold as well. I think it should work ok, but then again I haven't seen something like this running.

Frozen240
Posts: 218
Joined: Sun Dec 14, 2003 12:33 pm
Car: 92 240SX KADET

Post

Get some different plugs before you attempt to drive it under boost

NGK BKR7EIX-11 (iridium)NGK BKR7ES-11 (copper)HKS 5408-S35i (iridium and very pricey)

Do not use Platnium plugs with Nitrous, Race Fuel and/or under high boost...causes detonation...



Return to “KA24ET / KA24DET Forum”