Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

98mm Lid + 85mm MAF on a SI car?

Thread Tools
 
Search this Thread
 
Old 07-01-2011, 10:38 PM
  #1  
11 Second Club
Thread Starter
iTrader: (5)
 
boostednismo's Avatar
 
Join Date: Apr 2009
Location: South GA
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts

Default 98mm Lid + 85mm MAF on a SI car?

Trying to squeeze the most out of my setup. Looking at a FTP 98MM lid, 85MM MAF, Chris1313 AC version, and a new tune.

So my question is...are the gains worth it on a stock internal car? I've seen guys with FAST 90's and 1 7/8" LT's and gain HP and others loose HP. I just want to drop further in the 11's without adding a cam or heads. I know that my exhaust is a choke point also and I will be addressing it this year also.

And if so how much can I expect from adding these parts?

Setup:
Lid, Ported TB, stock MAF, LS6 intake, Powerbond UDP, PS LT's, TSP ORY, Stock muffler with cutout behind axle, free mods, RPM Level 4 4L60E, Yank SS4000, Stock 3.23's, Tune with HP Tuners.
Old 07-04-2011, 09:24 AM
  #2  
TECH Junkie
iTrader: (33)
 
LS1-450's Avatar
 
Join Date: Aug 2005
Posts: 3,783
Likes: 0
Received 9 Likes on 8 Posts

Default

You'll gain a tenth. Won't see all of the gains (recorded HP/TQ) on the dyno due to not getting the added RAM air airflow. Make sure that you tell the tuner that you've added an 85mm MAF. The MAF table scaling is different than the stock MAF & the tuner will need to load the 85mm Table.

BTW, FAST's shine on higher than stock cubes & head/cam swaps. So, until you're into this area, stick w/ what you've done. If you already have long tubes, you're exhaust isn't chokin' much. Don't waste the cash there. Good-luck!
Old 07-04-2011, 09:40 PM
  #3  
11 Second Club
Thread Starter
iTrader: (5)
 
boostednismo's Avatar
 
Join Date: Apr 2009
Location: South GA
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanks for the help. I'm not worried about dyno numbers just track times.

With those mods and the added suspension components I'm ready for race season to get here again.
Old 07-04-2011, 09:50 PM
  #4  
TECH Fanatic
iTrader: (55)
 
Mike Morris's Avatar
 
Join Date: Mar 2010
Location: Md/PA/FL
Posts: 1,635
Received 68 Likes on 57 Posts
LS1Tech 10 Year
Default

You will gain about 1.3-1 MPH and almost 2 tenths in the same conditions with those 3 mods. The lid mod will come alive along with the maf when you add a ported Fast and big TB on it though it will be a little more difficult to tune in regards to driveability
Old 07-04-2011, 10:18 PM
  #5  
11 Second Club
Thread Starter
iTrader: (5)
 
boostednismo's Avatar
 
Join Date: Apr 2009
Location: South GA
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Mike Morris
You will gain about 1.3-1 MPH and almost 2 tenths in the same conditions with those 3 mods. The lid mod will come alive along with the maf when you add a ported Fast and big TB on it though it will be a little more difficult to tune in regards to driveability
Why will it be more difficult to tune the driveability?

If I gain 2 tenths from that and my better 60' I will be very pleased.
Old 07-05-2011, 09:19 AM
  #6  
TECH Fanatic
iTrader: (55)
 
Mike Morris's Avatar
 
Join Date: Mar 2010
Location: Md/PA/FL
Posts: 1,635
Received 68 Likes on 57 Posts
LS1Tech 10 Year
Default

A lot of tuners on a SI car with Fast Intakes and big throttle bodys(90 or bigger) have a lot of problems with driveability and low rpm performance in regards to to tuning



Quick Reply: 98mm Lid + 85mm MAF on a SI car?



All times are GMT -5. The time now is 02:10 PM.