Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |
Sponsored by:
Sponsored by:

Fast 102lsxrt " EXPANDS" under throttle....WTF?

Thread Tools
 
Search this Thread
 
Old 09-15-2013, 06:44 PM
  #1  
Teching In
Thread Starter
 
CMAR81's Avatar
 
Join Date: Jul 2013
Location: Huntsville Tx
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default Fast 102lsxrt " EXPANDS" under throttle....WTF?

im kinda new to the performance world of trucks, that being said I installed a 102lsxrt on my 01 silvy, as well as a 102 tb. I noticed that when i give it a little throttle the WHOLE damn thing expands....is this normal..or is something way out of the oridinary here: Mods are : lsxrt 102, fast 102 tb,volant cool air,
224/224 581/581 112lsa, hooker super comp headers, p&p 241 heads, tci 3600 converter, deatschWerks #44 injectors, 4.56 richmond gears on a fresh re-built 5.3l .30 over

Last edited by CMAR81; 09-15-2013 at 06:45 PM. Reason: search mistake
Old 09-15-2013, 07:29 PM
  #2  
TECH Resident
iTrader: (26)
 
brandon6.0's Avatar
 
Join Date: Dec 2009
Location: Glennville GA
Posts: 938
Likes: 0
Received 8 Likes on 8 Posts
Default

What do u mean by expands? Like the intake expands as in blows up kinds like a balloon? That's pretty weird.
Old 09-15-2013, 07:31 PM
  #3  
Teching In
Thread Starter
 
CMAR81's Avatar
 
Join Date: Jul 2013
Location: Huntsville Tx
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

yeah...kinda like a balloon...top of it sucks down...front of it where the TB bolts on expands...
Old 09-15-2013, 08:00 PM
  #4  
Launching!
iTrader: (2)
 
WICKEDOWESIX's Avatar
 
Join Date: May 2011
Location: SoCal
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Mine does the sAme thing and another person i know said does the same.
Old 09-15-2013, 08:02 PM
  #5  
Launching!
iTrader: (2)
 
WICKEDOWESIX's Avatar
 
Join Date: May 2011
Location: SoCal
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Figured rhs and comp did their r&d to allow it to flex some. Is made from the same material as the rest of the fast manifolds so i assume everything it it doing is normal. I have yet to have someone crack or break one. Hell i know. A few people that arw FI and run the manifold without issues. I think you will be fine.
Old 09-15-2013, 08:21 PM
  #6  
Teching In
Thread Starter
 
CMAR81's Avatar
 
Join Date: Jul 2013
Location: Huntsville Tx
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

as long as this seems "normal" im ok with it...another problem is idle...dies all the time even with tune...although the guy that did the tune didnt ask many questions and only took about 15 min do....i figured a tune should have taken a little longer.....kinda thought he just copy and past a different tune....but hey what do i know like i said im new to this .
Old 09-15-2013, 08:23 PM
  #7  
Teching In
Thread Starter
 
CMAR81's Avatar
 
Join Date: Jul 2013
Location: Huntsville Tx
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by brandon6.0
What do u mean by expands? Like the intake expands as in blows up kinds like a balloon? That's pretty weird.
how do you like the 4.56 gears?
Old 09-15-2013, 08:25 PM
  #8  
Launching!
iTrader: (2)
 
WICKEDOWESIX's Avatar
 
Join Date: May 2011
Location: SoCal
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Its your tune. He needs to drive it to simulate different driving conditions and fix the idle.
Old 09-15-2013, 08:32 PM
  #9  
Teching In
Thread Starter
 
CMAR81's Avatar
 
Join Date: Jul 2013
Location: Huntsville Tx
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by WICKEDOWESIX
Its your tune. He needs to drive it to simulate different driving conditions and fix the idle.
yeah i dont think im going back to the same guy...gotta do some research
Old 09-15-2013, 08:35 PM
  #10  
Launching!
iTrader: (2)
 
WICKEDOWESIX's Avatar
 
Join Date: May 2011
Location: SoCal
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by CMAR81
yeah i dont think im going back to the same guy...gotta do some research
Yeah good call....


Quick Reply: Fast 102lsxrt " EXPANDS" under throttle....WTF?



All times are GMT -5. The time now is 07:02 PM.