Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

I NEED BOOST!!!!!!!!!!!!!! (beaten by SRT-4)

Thread Tools
 
Search this Thread
 
Old 10-28-2005, 11:14 AM
  #76  
James-man
Race Car
 
James-man's Avatar
 
Join Date: Jan 2004
Location: Charlotte, NC
Posts: 3,860
Received 0 Likes on 0 Posts
Default

And that shiny fugly turd just might be a whole lotta fun to drive for a year or two.
Old 10-28-2005, 12:24 PM
  #77  
Imo000
Captain Obvious
Super User
 
Imo000's Avatar
 
Join Date: Aug 2003
Location: Cambridge, Ontario, Canada
Posts: 22,846
Received 339 Likes on 245 Posts
Default

Originally Posted by URIN 2ND
Whoa there tiger, simmer down! I can compare those two cars exactly the same way the 928 guys are making comparisons (not all of the 928's talking about bouts with SRT's have been stock in this thread). How is that any different? Second, lack of driver experience has EVERYTHING to do with what a car is capable of...reason being, a car isn't capable of ANYTHING unless it has a driver with the skills to get it rolling, and rolling quickly. I've beaten so many cars that should have tore me a new one because of crappy drivers at the wheel. In the real world, a human drives the car you're racing...not a robot. So variables most certainly count. You don't see LeMans winners in the GT category place in front of an LM car, but then the LM gets placed ahead overall because "even though he went slower, the car is capable of going faster on paper", do you?

As for the Corrado...they are slow. Period. A stock G60 is a 1.8L SOHC 8V with 8.3 psi, and it's built/geared to run at sustained high speeds. They would be lucky to run a 15.9 stock, with a 7.5 0-60...but they CAN reach (and hold) about 140mph, and remain stable doing so. As for the handling, I can't say...but the only other FWD car to have such praises bestowed on it in the handling dept. is the Honda/Acura Teg Type-R. The G60 handles well for a FWD.

Brand loyalty? What's that? I have a Volvo and a Porsche. Before that, a Mitsubishi. A bunch of VW's. A Ford Mustang (LX 5.0L). A Plymouth K-Car. A Buick Regal.

I am the first one to sing the praises of having an open mind. And I do. But that doesn't also mean I can't can't have my own opinion. And in my opinion, I would never own a Neon. They have a second rate build quality, and most domestics have chincy plasticy interiors that just scream "cheap". Hell, even the C5 suffered the same things. See the Top Gear review/road test on that one? I'm just not a fan of domestics. Doesn't mean they can't still go fast. My Ford was fast. But it was still a POS.

Like so many in here are trying to say...you polish a turd, and you still end up with a shiny turd.

Beep beep. Hi!

I'm sorry if I came across too strongly. However for new car under $2500 you can’t get a better value than that. If it’s a turd we might as well cal it TURBO LAX!
Old 10-28-2005, 12:32 PM
  #78  
Imo000
Captain Obvious
Super User
 
Imo000's Avatar
 
Join Date: Aug 2003
Location: Cambridge, Ontario, Canada
Posts: 22,846
Received 339 Likes on 245 Posts
Default

Originally Posted by James-man
And that shiny fugly turd just might be a whole lotta fun to drive for a year or two.
My thoughts exactly. All my previous Turbo Chryslers were fun when they were new. Unfortunately I always bought them after they reached 100K. I have to thank Chrysler for the “opportunity” to learn auto repair the DIY way! Nothing forces you to learn faster than changing the engine on my Sundance Turbo 5 times in one summer.
Old 10-28-2005, 12:36 PM
  #79  
dprantl
Race Car
 
dprantl's Avatar
 
Join Date: Dec 2003
Location: Atlanta, GA
Posts: 4,477
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by URIN 2ND
As for the Saab...you wouldn't do that on an otherwise stock car, as the guy was suggesting (he said the mod cost $1.50). You aren't gonna get very far running 26psi with stock injectors.
Um... my car is stock. So are my injectors, as well as everything else in the engine. The only thing that is not stock is the 50 cent vacuum plug. If you call that not stock, then I guess it's not . Not very far? Did I mention I was running like this for a year already?

The point is that pretty much any turbo car can have up to 50hp (or more) added to it with no *real* modification. The turbos put into cars are never running at 100% load. It's usually more like 70% or less. Also, the fuel systems (at least in all the turbo cars I've seen) are designed to handle the limit of the turbo installed running at 100% + safety margin.

Also, I believe the SRT-4 has an option for FWD LSD...

Anyway, the real point of all this is that a Turbo 928 kicks so much a$$! Hey Mark R., is the kit ready or what??

Dan
'86 928S 5-spd w/LSD
Old 10-28-2005, 02:40 PM
  #80  
L8 APEKS
Three Wheelin'
 
L8 APEKS's Avatar
 
Join Date: Jan 2003
Location: So Cal
Posts: 1,306
Likes: 0
Received 0 Likes on 0 Posts
Default

Dan,

That's nuts! What's the stock boost level on that Saab? I know if I un-corked a stock 740/940 on pump gas (91 here in CA), and went from 7.4 psi (stock) to 26 psi (no wastegate) with NO other mods, she might last about 5 minutes before melting pistons. The bricks do it, but usually not without 36# injectors and higher than 91 octane (usually 100). Then again, the stock turbo on my car is nothing but a heater anywhere above 12 lbs, where it completely loses it's efficiency. The 850T's 15G has a little more steam. What's the stock compressor in the Saab?

Anywho, at least it's nice to know that the automotive industry is now finally able to offer sport compacts with performance on-par with Porsche's designs from the 1970's...before most of the current sport compact owners were even born.
Old 10-28-2005, 03:10 PM
  #81  
SharkSkin
Rennlist Member
 
SharkSkin's Avatar
 
Join Date: Jan 2004
Location: Boulder Creek, CA
Posts: 12,620
Likes: 0
Received 6 Likes on 6 Posts
Default

Originally Posted by URIN 2ND
Probably disengaging the wastegate. You'd have to be running rocket fuel to fight the detonation from so much boost, but I know people with turbo cars who use this technique at the strip. But it's definitely not something you can drive around the street on 24/7.
IIRC it was a matter of changing an orfice in a vac line to the WG, so boost was still limited at a reasonable value. Nevertheless, it's a cheap mod...
Old 10-28-2005, 03:54 PM
  #82  
dprantl
Race Car
 
dprantl's Avatar
 
Join Date: Dec 2003
Location: Atlanta, GA
Posts: 4,477
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by URIN 2ND
Dan,

That's nuts! What's the stock boost level on that Saab? I know if I un-corked a stock 740/940 on pump gas (91 here in CA), and went from 7.4 psi (stock) to 26 psi (no wastegate) with NO other mods, she might last about 5 minutes before melting pistons. The bricks do it, but usually not without 36# injectors and higher than 91 octane (usually 100). Then again, the stock turbo on my car is nothing but a heater anywhere above 12 lbs, where it completely loses it's efficiency. The 850T's 15G has a little more steam. What's the stock compressor in the Saab?
The stock boost level for my '91 9000 is around 15psi (200hp/244lb.ft @ 2000 rpm). I haven't taken it to the dyno, but I'd say I'm squeezing everything out of that T25 which is about 270 - 280hp @ 25 - 26psi. It's the torque that is insane; I get full boost at just over 2500rpm. The modification I'm talking about closes the connection from the APC solenoid to the wastegate, hence no wastegate function anymore. I'm not sure exactly what the specs of the T25 are, I suspect it is a standard trim/size. I won't say it's as easy to drive as before, you really have to be gentle when letting off the throttle at over 20psi, otherwise you will get a really hard backlash. I believe the car comes stock with 30lb injectors. I really think that I can only do this because of the 8.5:1 compression and only on 93 octane gas. There is a final safety feature built in to the LH 2.4.2 computer that will cut off fuel momentarily if the air mass exceeds a certain amount. I have hit this a couple of times on really hot days.

That car is such a beast that I ripped the top engine mount off of its steel bracket a while back (granted it was 180k miles old and a little rusty).

So what I really need is a 928 with a turbo; it will be the best of both worlds! And maybe transplanting the direct ignition from the saab into the 928 would be nice too...

Dan
'86 928S 5-spd w/LSD
'91 9000T 5-spd @26psi
Old 10-28-2005, 06:35 PM
  #83  
Herr-Kuhn
Banned
 
Herr-Kuhn's Avatar
 
Join Date: Apr 2005
Posts: 716
Likes: 0
Received 0 Likes on 0 Posts
Default

Ask yourself...would you actually trust a turbo Neon through a 130 MPH sweeper? It is an economy car with a hopped up engine, nothing more, nothing less.
Old 10-28-2005, 07:17 PM
  #84  
CMW
Racer
 
CMW's Avatar
 
Join Date: Aug 2003
Location: San Pedro
Posts: 442
Likes: 0
Received 0 Likes on 0 Posts
Default

no
Old 10-28-2005, 07:31 PM
  #85  
Warren928
Burning Brakes
 
Warren928's Avatar
 
Join Date: Jul 2003
Location: IL
Posts: 1,166
Likes: 0
Received 0 Likes on 0 Posts
Default

Sure they were fun, but if given the choice would you go back to one? I have had some shined up turds in the past too, and I'm glad they're staying with their current owners.
Those cars were perfect for the age. When I was between 16 and 22, I flogged, beat and killed every car I owned or drove. Better the Chrysler (or Nissan in my case) than the Porsche.

Originally Posted by Imo000
My thoughts exactly. All my previous Turbo Chryslers were fun when they were new. Unfortunately I always bought them after they reached 100K. I have to thank Chrysler for the “opportunity” to learn auto repair the DIY way! Nothing forces you to learn faster than changing the engine on my Sundance Turbo 5 times in one summer.
Old 10-28-2005, 07:33 PM
  #86  
m21sniper
Banned
 
m21sniper's Avatar
 
Join Date: Jul 2005
Location: Philly
Posts: 2,066
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by URIN 2ND
As for the Saab...you wouldn't do that on an otherwise stock car, as the guy was suggesting (he said the mod cost $1.50). You aren't gonna get very far running 26psi with stock injectors.
The Buick GNs(intercooled 86-87 models) ran 14psi stock, 18psi on a stage 1 chip, and 24psi on a stage II chip.

All you needed for 24psi was a RRFPR and 93 octane fuel. The chip automatically retards the timing, and the stock 24lb injectors can handle the required flow, so all is well. On the hot air cars(non intercooled 84-85.5), you needed a RRFPR and 30lb injectors with 100 octane fuel to safely run at 24psi. I used to run my hot air car on 18psi with 93 octane the RRFPR and 30lb injectors and that ran a best of 12.4 on cheater slicks.
Old 10-28-2005, 07:36 PM
  #87  
m21sniper
Banned
 
m21sniper's Avatar
 
Join Date: Jul 2005
Location: Philly
Posts: 2,066
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by SharkSkin
IIRC it was a matter of changing an orfice in a vac line to the WG, so boost was still limited at a reasonable value. Nevertheless, it's a cheap mod...
On the gn's that is accomplished by cutting the actuator rod to the wastegate and installing a threaded pipe sleeve with jam nuts to reconnect the rod ends.

You simply extend the rod for less boost, or shorten it for more. Very simple to do, and costs about .75 cents worth of hardware. Of course you need other mods(listed above) to safely run at the higher levels.
Old 10-28-2005, 07:37 PM
  #88  
m21sniper
Banned
 
m21sniper's Avatar
 
Join Date: Jul 2005
Location: Philly
Posts: 2,066
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Herr-Kuhn
Ask yourself...would you actually trust a turbo Neon through a 130 MPH sweeper? It is an economy car with a hopped up engine, nothing more, nothing less.
The suspension of the SRT-4 is definitely superior to that of a stock Neon. But that being said, you don't see me running out to buy one either.

They WILL blow up like all the other Dodge turbo 4s did. And rust out...

Just a matter of time.



Quick Reply: I NEED BOOST!!!!!!!!!!!!!! (beaten by SRT-4)



All times are GMT -3. The time now is 01:22 PM.