240 concerns - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

bshotts · 12-28-2004, 01:14 PM

I'm new to the zilvia board but I heard it's a good place to go for 240 info.........anyway, I had my Redtop installed in my '96 this summer and have some major concerns to this date:

1)Engine is running extremely rich (i.e. 11-15 mpg) and fumes are killer as well as black exhaust builds up fairly quickly in the exhaust and rear fascia

2)Engine stalls sometimes and idles rough after an extended period of driving, also backfires frequently

3)Speedometer recently stopped working as well as the odometer...where is the speed sensor located?

4)Recently installed Autometer boost gauge....have a good boost reading (9 psi peak, 7 psi hold stock boost), but no vacuum reading? Did I tap the wrong pressure line?

5)Recently noticed after running it to near redline, engine wants to run rough (i.e. sounds like a WRX boxer engine and noticed some white smoke come out of the exhaust, but no smoke when driven regularly)

6)Breather filter off of the valve cover sprays oil onto the exhaust manifold when driven hard Shoud I do away with the breather filter?

Mod list:
Redtop SR20DET
S15 T-28
NISMO motor/tranny mounts
Exedy Stage II clutch
MSL Aluminum Radiator
Electric fan
Custom intake
MSL hotpipe
Stock S13 SMIC
Larger camshafts
HKS spark plugs
Walbro 255
Blitz 3" SS DP
MSL 3" test pipe
APEX'I 3" N 1 single

I do have an APEX'I SAFC II waiting to be installed and tuned.....how much would this help?

Sorry so long, but I appreciate any advice!!

12-28-2004, 01:14 PM	#1
bshotts Zilvia Junkie Join Date: Jan 2003 Location: Indianapolis, IN Age: 42 Posts: 472 Trader Rating: (13) Feedback Score: 13 reviews	240 concerns I'm new to the zilvia board but I heard it's a good place to go for 240 info.........anyway, I had my Redtop installed in my '96 this summer and have some major concerns to this date: 1)Engine is running extremely rich (i.e. 11-15 mpg) and fumes are killer as well as black exhaust builds up fairly quickly in the exhaust and rear fascia 2)Engine stalls sometimes and idles rough after an extended period of driving, also backfires frequently 3)Speedometer recently stopped working as well as the odometer...where is the speed sensor located? 4)Recently installed Autometer boost gauge....have a good boost reading (9 psi peak, 7 psi hold stock boost), but no vacuum reading? Did I tap the wrong pressure line? 5)Recently noticed after running it to near redline, engine wants to run rough (i.e. sounds like a WRX boxer engine and noticed some white smoke come out of the exhaust, but no smoke when driven regularly) 6)Breather filter off of the valve cover sprays oil onto the exhaust manifold when driven hard Shoud I do away with the breather filter? Mod list: Redtop SR20DET S15 T-28 NISMO motor/tranny mounts Exedy Stage II clutch MSL Aluminum Radiator Electric fan Custom intake MSL hotpipe Stock S13 SMIC Larger camshafts HKS spark plugs Walbro 255 Blitz 3" SS DP MSL 3" test pipe APEX'I 3" N 1 single I do have an APEX'I SAFC II waiting to be installed and tuned.....how much would this help? Sorry so long, but I appreciate any advice!!