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GENERAL => General => Topic started by: florida_tgp on October 27, 2003, 05:47:57 PM

Title: GTP and TGP owners opinions poll
Post by: florida_tgp on October 27, 2003, 05:47:57 PM
I am seriously moving toward a GTP, my question is for those that own both. How do you find the light to mid throttle response of the GTP to TGP. Maybe the answer will vary with mods, I test drove a 2000 GTP, didn't get to thrash it around, but it just didn't seem as lively with part throttle as my TGP with manual boost control. Appreciate your thoughts, and let me know the mods done to the cars your comparing.
Title: GTP and TGP owners opinions poll
Post by: LukeZ34 on October 28, 2003, 06:57:59 AM
I enjoy driving my girlfriend's 99 GTP more than the TGP at times. For a stock car, her's moves pretty well, faster than my TGP, that's for sure.
Title: GTP and TGP owners opinions poll
Post by: GPChief on October 28, 2003, 10:28:33 AM
In my 1997 GTP Its fun to drive for several reasons, newer suspension, way beter brakes, interior is better laid out and a better factrory stereo.  As for throttle response, it gets into boost @ 1500.  Parts are more readily available, and with over 16,000 members in club GP there is a lot of knowledge for the taking.

I like my early 90's GPs due to the comfortable seats, ease of working on them (although expensive, PM III), and plain old product loyality.
Title: GTP and TGP owners opinions poll
Post by: m6amba on December 24, 2003, 03:01:23 PM
my friend has the 95 GTP and i have a 90 TGP  we both have intakes chips plugs wires and the like.....he has exhasut and i have a major chip........his car seems to have about the same power as mine till ya jump on it and spool up the turbo......if ya drive the tgp and ease down the throttle it wont spool boost as fast so it seems doggy but a quick short stab on the gas will spool it up to make boost and then my car seems to way!!!! out power his GTP........................  so even with not much gas pressure .as long as ya do it quick so in our cars it makes the dif how quick ya step on the gas











did i just ramble on and on and on and on and  on...............oops  lol :roll:
Title: GTP and TGP owners opinions poll
Post by: 4PASNU on December 24, 2003, 04:26:18 PM
I love driving both cars but if I want to go fast it's my GTP any day.  The TGP just can't hang.  Of course I have lots of go fast goodies to help it out where my TGP is mostly stock.  I do like driving the TGP more if I'm going to be driving on some twisty roads.  To me it feels like it's on rails.  I also think the TGP has more character then the GTP does.  It's rare and I feel like I'm driving something special.  GTP's are everywhere.

Mike
Title: GTP and TGP owners opinions poll
Post by: 95GTP on December 28, 2003, 05:46:03 AM
Driving my TGP I feel the "instant" response in power and a little delay in the GTP.  Over all the GTP has alot more balls.  The 1995 GTP doesnt have any supercharger or boost goodies so without that its pretty damn good.

 The TGP like already said is a head turner, people look at you and say "what the hell is that".  I was going to shave the badges and make it a sleeper but the "Turbo" fcks them up.  Kids dont want to mess with me in their "Hondajettahundys".  

 They will try to take on the GTP because they all have heard what a GTP is capable of and want to challange it, I smoke them but they will go and brag about it.

 Only one thing about the older GTP's with the 3.4.  You better be handy fixing stuff!  I would call it a "high maintenance" motor.  I already dumped $$ thousands $$ into this car.
Title: my own 2 cents
Post by: florida_tgp on January 01, 2004, 05:33:39 PM
Now that i have both i can answer my own question. But it's not really a fair comparison, as the TGP is not much more than stock, a chip that just advanced timing, K&N, 180 stat, manual boost control, no CAT, and 140k miles.  My GTP is at least 40hp up from stock, MSD coils and wires, DHP, CAI, K&N, exhaust, 180 stat, 3.4 pulley.
The GTP wins hands down, after a week of the GTP, I got in the TGP, i almost rear ended somebody at the first stop light, big difference in brakes. Maybe its the tall gear ratio or torque of the 3.8, but that car just seems to want to go with such little peddle effort. And the thing just flies from 70mph, downshifting to second due to DHP, up to 90mph.
Title: GTP and TGP owners opinions poll
Post by: dbtk2 on January 01, 2004, 07:17:43 PM
The 97+ GTP is a lot nicer and quicker car than a TGP anyday IMO.  The acceleration, brakes, steering, ride quality, noise level, and a lot of other things are MUCH better.  I like TGP's and all, but if I got the opportunity to get a GTP instead of my TSTE, I would do it in a heartbeat.  

But my opinion may be a little unfair, seeing that I am used to my dads '02 GTP that runs low-mid 12's.
Title: Re: my own 2 cents
Post by: 95GTP on January 04, 2004, 07:35:57 AM
Quote from: florida_tgpMy GTP is at least 40hp up from stock, MSD coils and wires, DHP, CAI, K&N, exhaust, 180 stat, 3.4 pulley.

B.S. flag!!!

No way are you going to get 40 hp from those mods, no way, NO WAY!!!

So your saying your GTP (3.4L I assume) has 255hp?  No boost or NOS?

"tall gear ratio or torque of the 3.8"???  

The 3800 supercharged GTP is at about 245hp.  You added 40 hp to that?  295-300 hp??

NO FCKN WAY!!!
Title: GTP and TGP owners opinions poll
Post by: m6amba on January 04, 2004, 10:28:16 AM
95gtp.....calm down man :lol: .......no matter which engine he has adding 40 hp is possible.....however  not with the mods he listed,  :D if he is gonna do it he is gonna need more than those few mods :wink: like some of the things i have.....except the turbo'd engines are easier to make power out of ................. :twisted: .................and i personally know a guy ( good friend of mine in fact) who has a 92 euro 3.4 lumina and i gaurantee he has over 240 hp......210 factory......CAI, very free exhaust, biggest chip from ffp, 160 stat, wires plugs,k&n,exhaust timing advanced 13 degrees...............check out the desktop dyno on that mod....that one alone is supposed to go from 210...239 hp@6700 rpm   but i think that noone will argue that he has 240 hp with all those mods and if ya ever saw his car run....wow   we love drivin around and floorin it at 35 mph when his high stall torque converter hooks up after the down shift his tires bark on dry blacktop   in the rain............well............ :twisted:



maybe fla tgp should clarify how he arrived at a 40hp boost over stock :?:
Title: Re: my own 2 cents
Post by: 4PASNU on January 04, 2004, 11:35:52 AM
Quote from: 95GTP
Quote from: florida_tgpMy GTP is at least 40hp up from stock, MSD coils and wires, DHP, CAI, K&N, exhaust, 180 stat, 3.4 pulley.

B.S. flag!!!

No way are you going to get 40 hp from those mods, no way, NO WAY!!!

So your saying your GTP (3.4L I assume) has 255hp?  No boost or NOS?

"tall gear ratio or torque of the 3.8"???  

The 3800 supercharged GTP is at about 245hp.  You added 40 hp to that?  295-300 hp??

NO FCKN WAY!!!

SLOW DOWN there "95GTP"!!!  If you would have read the post correctly he states he has a 3.4 pulley.  That in itself should have clued you in on the fact that he has a 97 or later GTP (3.8L) due to the supercharger.  With the mods he listed it's very possible that he has 40hp (or close to it) over stock.  


MSD Coils and wires - no gain (maybe 1 hp if lucky)

DHP - possibly up to 20 hp gain

exhaust - 5-20 hp depending on what is done (headers, high flow cat, cat back)

CAI - 5 hp +/- a few

180 tstat - 1 or 2 hp

3.4 pulley up to 20hp

Add that up and it's very possible.
Title: GTP and TGP owners opinions poll
Post by: 95GTP on January 05, 2004, 04:38:12 PM
I'm calmed down but still skeptical.

Add on HP from mods are not always added together to get the end total HP.  

I know this sounds funny but 20 + 10 + 10 dont equal 40 in these cases.
Title: GTP and TGP owners opinions poll
Post by: 4PASNU on January 05, 2004, 04:56:11 PM
Quote from: 95GTPI'm calmed down but still skeptical.

Add on HP from mods are not always added together to get the end total HP.  

I know this sounds funny but 20 + 10 + 10 dont equal 40 in these cases.

Yes, I agree with that.  If that's the way it worked adding my numbers up from before would come out to 68 hp over (I wish it worked like that!). But with the mods listed, there is no doubt in my mind he has a minimum of 30 hp over stock, a VERY good chance of having 35 over and I still believe 40 hp is not out of the question.
Title: GTP and TGP owners opinions poll
Post by: LukeZ34 on January 05, 2004, 05:39:35 PM
I believe it's possible that an L67 can gain that much HP gain from just those mods. Those motors seem to gain a lot just from exhaust, and intake alone. Add the DHP on to that, and the 3.4 pully, and it's highly possible.
Every motor responds differently to mods.
Title: GTP and TGP owners opinions poll
Post by: dbtk2 on January 11, 2004, 06:16:32 PM
The 40 horsepower gain he stated above is not only possible, but is almost EXPECTED with those mods.  Just a 3.4 pulley adds ~25hp to a stock L67 (not to mention 40-50lb.ft. of torque), plus an open air intake and exhaust, and a DHP PCM.  It almost has to have gained 40hp.  The DHP will give LARGER gains when the car is modded, so you can expect usually around 10hp from that.  So that and the 25hp from the pulley put you darn close to the 40hp, and that DOESN'T include the intake or exhaust, or the minor mods like t-stat, coils, and wires.  

But what would I know, its not like my dad has a 400hp GTP and my mom a 290hp SSEi.  

Shawn
Title: GTP and TGP owners opinions poll
Post by: RareGMFan on January 11, 2004, 06:55:22 PM
Quote from: dbtk2But what would I know, its not like my dad has a 400hp GTP and my mom a 290hp SSEi.  

Shawn

Yeah, I mean what kind of crazy talk is that?   :D  Next thing you know, you'll be telling me you have a TGP and a TSTE!!

-j/k  :P  :wink:
Title: GTP and TGP owners opinions poll
Post by: m6amba on January 13, 2004, 06:44:47 PM
400hp GTP???    list the mods to that please..........i want some of them and i know my friend does..............







BTW to all who know about my car it is almost done ......maybe tonight......and when it is i will be listing all the mods and part numbers on here for all to see
Title: GTP and TGP owners opinions poll
Post by: mfewtrail on January 13, 2004, 07:29:10 PM
Quote from: m6amba400hp GTP???    list the mods to that please..........i want some of them and i know my friend does..............







BTW to all who know about my car it is almost done ......maybe tonight......and when it is i will be listing all the mods and part numbers on here for all to see

check out clubgp 8) lotsa' fast GTP's there.
Title: GTP and TGP owners opinions poll
Post by: dbtk2 on January 21, 2004, 08:12:20 PM
Quote from: m6amba400hp GTP???    list the mods to that please..........i want some of them and i know my friend does..............

I don't feel like sitting here all day typing in a bunch of mods.  If you don't believe me, maybe you should take a little visit to clubgp.  

He is #22 on this list:
http://www.clubgp.com/cgi-asp/qtrmile.asp

and #13 on this list:
http://www.clubgp.com/cgi-asp/qtrmile.asp?txtfunc=1

Shawn
Title: GTP and TGP owners opinions poll
Post by: 95GTP on January 24, 2004, 11:28:27 AM
Quote from: dbtk2
Quote from: m6amba400hp GTP???    list the mods to that please..........i want some of them and i know my friend does..............

I don't feel like sitting here all day typing in a bunch of mods.  If you don't believe me, maybe you should take a little visit to clubgp.  

Shawn

2002 40th GTP

Engine/Performance Modications

Thrasher Air Induction System (1/1/2000)
Adjustable Fuel Pressure Regulator (1/1/2000)
RT Down Pipe (1/1/2000)
RT Cat (1/1/2000)
Engine Heat Shield (1/1/2000)
The Other Guys Headers (1/1/2000)
PCM Reprogrammed (1/1/2000)
160 degree Thermostat (1/1/2000)
MSP Tranny Pan (1/1/2000)
2.7'' ZZP Modular Pulley (1/1/2000)
1.91 Rockers (1/1/2000)
Thrasher Shift Kit (1/1/2000)
ZZP Stage 4 M90 (1/1/2000)
Borla Exhaust (1/1/2000)
'U-Bend' Replacement (1/1/2000)
MSD 8.5mm Wires (1/1/2000)
ZZP Stage 2 throttle body (1/1/2000)
INTENSE LSD (1/1/2000)
ZZP Stage 2 Intercooler (1/1/2000)
PRJ Aluminum Fuel Rails (1/1/2000)
SFPH halfshafts (1/1/2000)
Suspension/Wheel Modifications

Rear Strut Tower Brace (1/1/2000)
Front Sway Bar (1/1/2000)
Strut Tower Brace (1/1/2000)
Rear Sway Bar (1/1/2000)
Poly Bushings (1/1/2000)
Exterior Modifications

Vanity plate COOOLED (1/1/2000)

Must be nice to have enough cash to do all those mods to a 40th GTP.  I cant even afford a 2002 GP. :x


The vanity plate must be the secret mod :shock:

And whats up with the dates (1/1/2000)???  Isnt the car a 2002??
(typo I'm sure)

Staying skeptical.....
Title: GTP and TGP owners opinions poll
Post by: dbtk2 on January 24, 2004, 09:12:36 PM
ClubGP has an optional thing where you can type in the date you did all the mods, but they just added it, so it automatically put that date after everything, and since my dad didn't pay attention to when he did the mods, and really doesn't care, he hasn't take the time to put the dates in.

Shawn
Title: GTP and TGP owners opinions poll
Post by: 95GTP on January 26, 2004, 07:39:16 AM
What did me spend?  that sounds like alot of money invested.
Title: GTP and TGP owners opinions poll
Post by: dbtk2 on January 26, 2004, 02:12:54 PM
Just a few $$$.  :lol:  :wink:

Shawn
Title: thanks for the defense
Post by: florida_tgp on February 07, 2004, 07:41:03 AM
didn't think I would set somebody off with that post. Like was already posted, if you added up the raw #'s, 25hp for pulley, 8hp for exhaust, 10hp for cold air/K&N cone, >10hp for new ECM. it's well over my conservative estimate of 40,  I assume all those #'s are at the crank.
Next week end the restrive DownPipe and CAT are being replaced.

It just amazing how GM strangled that cars performance, two restrictions in exhaust, supercharger pulley.

I must admit, the TGP does seem to want go fast with less peddle effort,
maybe it's the 3:29 gear ratio, or just the peddle return spring, or travel distance. But push come to shove, with the peddle hard down, the GTP goes much faster.

Years ago, I rented a "vericom?", one of the early "G-tech" boxes for measuring acceleration. I thought it had a formula for multipllying the weight of the car by to estimate horsepower, does anyone know of such a formula. I plan on taking GTP to track next week.