1995 corvette questions
12-25-2010, 09:17 PM
#1
Racer
Thread Starter
Member Since: Apr 2009
Location: New Tazewell Tennessee
Posts: 402
Likes: 0
Received 5 Likes
on
2 Posts
1995 corvette questions
LT1...just changed to K&N oil filter and it changed the oil pressure quite a bit. Did this less pressure bother anyone else when changing? Also, muffler change from stock to magnaflow....is there any noticeable changes in horsepower?
12-25-2010, 09:23 PM
#2
Race Director
You must have had a plugged/bad oil filter. The K&N should be no different than any other. Baring a problem with the old muffler, other than sound it the magnaflow shouldn't make a noticeable difference. The LT1's came with pretty low restrictive mufflers, exhaust for that matter.
Last edited by zr1fred; 12-25-2010 at 09:29 PM.
12-25-2010, 09:30 PM
#3
Team Owner
Member Since: Aug 2005
Location: Riverside County Southern California
Posts: 34,988
Received 501 Likes
on
342 Posts
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20
You must have had a plugged/bad oil filter. The K&N should be no different than any other. Baring a problem with the old muffler, other than sound it the magnaflow shouldn't make a noticeable difference. The LT1's came with pretty low restrictive mufflers, exhaust for that matter.
x2
12-25-2010, 09:36 PM
#4
Le Mans Master
Member Since: Oct 2004
Location: Everett WA
Posts: 7,690
Received 477 Likes
on
353 Posts
C4 of Year Finalist (appearance mods) 2019
You have an oil pressure gage. What does it read when you start up the car? 10 min later when the car is at idle what does it read? When starting it should be 60+, at idle when the oil is warmed up, it should be 25+.
Also put a fresh air filter in the car ....and btw a paper one is just fine you don't really need those expensive oil covered foam ones.
The change in exhaust is not going to increase your hp unless you have a highly modified engine because your stock dual exhaust system is not very restrictive as it came from the factory .... but you may notice a drone while driving the car. Use the search function and look up exhaust systems.
95 is a great year
Also put a fresh air filter in the car ....and btw a paper one is just fine you don't really need those expensive oil covered foam ones.
The change in exhaust is not going to increase your hp unless you have a highly modified engine because your stock dual exhaust system is not very restrictive as it came from the factory .... but you may notice a drone while driving the car. Use the search function and look up exhaust systems.
95 is a great year
12-26-2010, 09:37 AM
#5
Racer
Thread Starter
Member Since: Apr 2009
Location: New Tazewell Tennessee
Posts: 402
Likes: 0
Received 5 Likes
on
2 Posts
Thanks!
You have an oil pressure gage. What does it read when you start up the car? 10 min later when the car is at idle what does it read? When starting it should be 60+, at idle when the oil is warmed up, it should be 25+.
Also put a fresh air filter in the car ....and btw a paper one is just fine you don't really need those expensive oil covered foam ones.
The change in exhaust is not going to increase your hp unless you have a highly modified engine because your stock dual exhaust system is not very restrictive as it came from the factory .... but you may notice a drone while driving the car. Use the search function and look up exhaust systems.
95 is a great year
Also put a fresh air filter in the car ....and btw a paper one is just fine you don't really need those expensive oil covered foam ones.
The change in exhaust is not going to increase your hp unless you have a highly modified engine because your stock dual exhaust system is not very restrictive as it came from the factory .... but you may notice a drone while driving the car. Use the search function and look up exhaust systems.
95 is a great year
12-26-2010, 09:51 AM
#6
Melting Slicks
Member Since: Feb 2008
Location: West Chester PA
Posts: 2,347
Received 48 Likes
on
37 Posts
St. Jude Donor '09-'10-'11,'13-'14-'15-'16-'17-'18-'19-'20-'21,'22-'23-'24
You must have had a plugged/bad oil filter. The K&N should be no different than any other. Baring a problem with the old muffler, other than sound it the magnaflow shouldn't make a noticeable difference. The LT1's came with pretty low restrictive mufflers, exhaust for that matter.
X3 May or may not see a change in resonance with Magnaflows. I would change the filter again to see what difference it makes. Never had an issue with K&N or Mobil 1 filters.95 is a great year
12-26-2010, 10:07 AM
#7
Drifting
What was and what is your oil pressure now??
Mine runs at the first mark when hot,I believe its 20 and just over half way when cold 45 ish I think.I use a pure 1 filter.
I have 75 K on my car and use 5w-30 mobil 1 oil
Mine runs at the first mark when hot,I believe its 20 and just over half way when cold 45 ish I think.I use a pure 1 filter.
I have 75 K on my car and use 5w-30 mobil 1 oil
12-26-2010, 08:05 PM
#9
Burning Brakes
Polo anyone?
We Polos have to stick together! I can't weigh on on oil pressure, except that it's a good thing to have!! I believe that the Mobil 1 you use will do a great job under most circumstances, no matter what filter you use.
But with respect to mufflers, I can't hear my exhaust because of the noise I get from my Sumitomo tires.
Stay Green!
But with respect to mufflers, I can't hear my exhaust because of the noise I get from my Sumitomo tires.
Stay Green!
12-27-2010, 07:54 AM
#11
Melting Slicks
Member Since: Nov 2005
Location: Green Valley Arizona
Posts: 3,187
Likes: 0
Received 106 Likes
on
71 Posts
If you really want to hear the exhaust, put some muffler eliminators on. Easy to do...they go in exactly as the mufflers do....takes under an hour to put in...unless you have the new mufflers welded on of course.
Have a set sitting in a box if interested.
Have a set sitting in a box if interested.
me. She loves the car like it is. 
12-30-2010, 12:09 PM
#15
-----
I've been using K&N oil filters for many yrs, never noticed a down side to em.
I had Magnaflows on my 95 LT1 and on my 96 LT4 up until recently. There was a seat of the pants improvement in performance in both cars but it was slight. Never dynoed either car. They did look great though. On the LT4 I ultimately replaced them with a chambered exhaust from Corvette Central because the magnaflows weren't loud enough for me.
I had Magnaflows on my 95 LT1 and on my 96 LT4 up until recently. There was a seat of the pants improvement in performance in both cars but it was slight. Never dynoed either car. They did look great though. On the LT4 I ultimately replaced them with a chambered exhaust from Corvette Central because the magnaflows weren't loud enough for me.
12-30-2010, 12:10 PM
#16
-----
plus you save some weight this way.
12-30-2010, 03:16 PM
#18
Banned Loser
Member Since: Aug 2009
Location: They say you learn from your mistakes, I must be a genius
Posts: 52,817
Received 248 Likes
on
114 Posts
2017 Corvette of the Year
2016 C4 of Year Finalist
Creator of the "Original" whining and crying thread
St. Jude Donor '14-'15-'16-'17
12-30-2010, 08:37 PM
#20
Banned Loser
Member Since: Aug 2009
Location: They say you learn from your mistakes, I must be a genius
Posts: 52,817
Received 248 Likes
on
114 Posts
2017 Corvette of the Year
2016 C4 of Year Finalist
Creator of the "Original" whining and crying thread
St. Jude Donor '14-'15-'16-'17
