GTP and SSEi...same powertrain? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-05-2005, 10:07 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2005
Location: Toledo, OH
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
JBWALT420 is on a distinguished road
Default GTP and SSEi...same powertrain?

I've been debating over weather or not to get a Grand Prix GTP or a Bonneville SSEi. Other than little changes due to the cosmetic differences of the two cars, are the powertrains pretty much the same? L67 w/ Eaton M90 supercharger, correct?
JBWALT420 is offline   Reply With Quote
Old 10-05-2005, 10:24 PM   #2
Senior Member
True Car Nut
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Yup, the powertrain is the same. I noticed you're sig and with either the GTP or SSEi you'll destroy Kris'* Hemi Ram while getting 25mpg.
fantastic88 is offline   Reply With Quote
Old 10-05-2005, 10:25 PM   #3
Senior Member Emeritus
Posts like a Camaro
 
Join Date: Feb 2005
Location: Grand Rapids, Iraq
Posts: 1,129
Thanks: 0
Thanked 0 Times in 0 Posts
Chad V is on a distinguished road
Default

I think it depends on the year with Gen */C you get, although I dont think the H/P is any different, I dont know a whole lot about the differences between the Gens, so dont quote me on it. Why not post the years you are looking at.
Chad V is offline   Reply With Quote
Old 10-05-2005, 10:34 PM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2005
Location: Toledo, OH
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
JBWALT420 is on a distinguished road
Default

*NUR* sorry, that would have been helpful, huh? I'm looking at the 98-2003 Grand Prix GTP, or a 2000+ Bonneville SSEi.

And yeah, Kris likes to talk big about his Ram...but he'* about to get a rude awakening
JBWALT420 is offline   Reply With Quote
Old 10-05-2005, 10:38 PM   #5
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

If your looking for power and overall times get the GTP.

The SSEi is a better car with more features but is hampered by torque management, heavier body, and taller tires making it run about 1 second slower than a GTP in the 1/4 mile (initially anyway )

Some things the SSEi has over the GTP is a better exhaust and the stabilitrak system.

Depends on your over all goals.

BTW, I'm not to far from Toledo if your Ram friend ever wants to have his truckbed handed to him
Rogue is offline   Reply With Quote
Old 10-05-2005, 10:49 PM   #6
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2005
Location: Toledo, OH
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
JBWALT420 is on a distinguished road
Default

Haha I'll remember that, Rouge. I wanna smoke him first though...then I'll let you add some insult to injury . He won't be doing too much talking come spring time...hehehe .

I'm not all that familiar with how superchargers work in comparison to turbochagers (which I know a little about, but not alot). Do they employ any kind of a blowoff valve to vent excess boost? You'd think that since boost is directly affected by RPM, then one wouldn't really be necessary since as soon as you lift off the throttle, boost would drop off, too. But nevertheless, I don't have a clue...so if someone could enlighten me, I'd appreciate it.
JBWALT420 is offline   Reply With Quote
Old 10-05-2005, 11:41 PM   #7
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Our roots type blowers employ an intergral wastegate valve operated by a vacuum controlled actuator. It would make full boost all the time, but...

Depending the amount of vacuum behind the throttle plate, the actuator opens the valve accordingly. If you let it idle, creating the most vacuum, the valve opens all the way (-10 pounds or so). If you floor it, releasing the vacuum to atmosperic pressure, the valve closes all the way, creating max boost. And any level in between. When dumping the boost, it goes back into the intake before the SC.
J Wikoff is offline   Reply With Quote
Old 10-05-2005, 11:44 PM   #8
Senior Member
True Car Nut
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Quote:
it run about 1 second slower than a GTP in the 1/4 mile
The 2000+, yes. The 96-99 SSEi only weighs 100-200 lbs. more than a GTP. Heck,even my stock LSS which is tuned for luxury ran a [email protected] stock. That was with a 2.4 60 ft. With a 2.2 60 ft I would of broke a 14.9 maybe even a 14.8. Ryan (SsuperchargedEi) ran a [email protected] with a 2.3 60 ft bone STOCK!! Thats as fast if not faster than most GTP'*. Trust me, get a 96-99.
fantastic88 is offline   Reply With Quote
Old 10-06-2005, 12:00 AM   #9
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

Quote:
Originally Posted by fantastic88
Quote:
it run about 1 second slower than a GTP in the 1/4 mile
The 2000+, yes. The 96-99 SSEi only weighs 100-200 lbs. more than a GTP. Heck,even my stock LSS which is tuned for luxury ran a [email protected] stock. That was with a 2.4 60 ft. With a 2.2 60 ft I would of broke a 14.9 maybe even a 14.8. Ryan (SsuperchargedEi) ran a [email protected] with a 2.3 60 ft bone STOCK!! Thats as fast if not faster than most GTP'*. Trust me, get a 96-99.
Well seeing as how he stated

Quote:
I'm looking at the 98-2003 Grand Prix GTP, or a 2000+ Bonneville SSEi.
I stand by my statement
Rogue is offline   Reply With Quote
Old 10-06-2005, 12:05 AM   #10
Senior Member
True Car Nut
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Just goes to show how much I can read when i've been drinking.
fantastic88 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Chevy Cruze & GM Powertrain: An Inside Look xtremerevolution General GM Chat 6 09-02-2012 12:02 AM
Chrysler announces LIFETIME powertrain warranty! petraman Lounge 29 07-30-2007 10:32 AM
Powertrain in 1991 buick regal gs myfirstbonnie Buick 4 12-05-2006 05:14 PM
Same old, same old bog...big time kwikshifter 1992-1999 3 02-25-2003 09:12 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:13 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.