LottaBallsCamaro

I'm talking about stock. 22psi with the stock bottem end is hellascious.

Yarnboy

Because they are better cars..but so is a Vette..They cost about the same too..It's pretty simple

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• Red '88 IROC 5 Speed 305 TPI w/3.08
• Dual Friction Stage III Centerforce Clutch
• Accel 300+ Racing Ignition
• Accel 300+ Pro Sleeve Plug Wires
• AC Delco Rapid Fire Plugs
• Flowmaster Force II 3 Chamber Cat Back Exhaust
• Hypertech Chip
• Hypertech Airfoil
• Gutted Air Box
• Best Maryland (40 degrees) E/T 14.686, 60' 2.205, 1/8th mile 9.461, 1/4 mile MPH 93.91
• Best Florida (80 degrees) E/T 14.88, 60' 2.163, 1/8th mile 9.540, 1/4 mile MPH 92.74
• Best 60' 2.163(Florida)
• TPiS AFPR set to 42psi using Accel Fuel Pressure Gauge (Installed after Maryland run)
• Aluminum Driveshaft (Installed after Maryland run)

LottaBallsCamaro

I'm looking for something more technical then some dumbass's opinion

89BlwnRs

Obviously if they're going to make a car that can take that kind of boost, the stock bottom end is pretty substantial. The engineers obviously built the bottom end to fit all that boost. Just because it's stock doesn't mean it sucks.

I don't know why you asked why some import engines are so tough, just about any engine can be made to be tough, especially if the block is a solid foundation. A Chevy can be made with forged crank, a good set of rods, and either forged or hypereutectic pistons and it would be rock solid. If you're gonna be pushing that much boost you'd probably go for a 4-bolt main block though.

Lingenfelter makes a 650 hp twin turbo Vette that uses the stock bottom end from the new LS1s. The Camaro's too are fitted with LS1s. The LS1 block is extremely strong. The block has 6 bolt mains, and the crank sits farther in the block then the older Chevy SB designs, not to mention it's extremely light since it's all Aluminum.

These imports, especially the Supras and NSXs probably come with rock solid bottom ends. I know for a fact that some Ferrari engines are made of aluminum and use Titanium rods and aluminum pistons. This creates a lightweight yet strong rotating assembly.

Jason

LottaBallsCamaro

I was more talking about this supra that is running 22psi and is daily driven supposidly.

IROCZTWENTYGR8

iTrader: (1)

I agree with 89RS, I have seen some SBC's like that run good even though they are driven that way.

[This message has been edited by IROCZTWENTYGR8 (edited April 29, 2001).]

JAYDUBB

Well lets put it this way...

Supra's come with forged pistons, rods, and cranks. I believe they also have cross-bolted 6 bolt mains (I could be wrong) just like the LS1's. Also they build them with way better tolerances, and tighter bearing clearances.

I know for a fact that they have "oil squirters" in the block that shoot oil to the bottoms of the pistons, just like a race block! They also have a pretty decent oiling system. And the main caps are pretty damn BEEFY (thick!!!). And they cast a lot of metal in the main web area.

Does that answer your question?

JJ

I had heard that the supra block has a substantial amount of nickle in it which is one of the reason for 22psi. I'm pretty sure I heard nickle was one of the attributing factor, but not positive. I'd like to do a MkIII supra, probably not as durable as the MkIV, but some of them do run and probably more in my price range overall.

D_Amlee

In showroom trim, most of those small displacement engines are designed to operate in the 6,000 - 7,000 rpm range. To get decent reliability at those speeds they install forged steel cranks at the factory. Even on the grocery-getters. That right there gives them a whole lot stronger bottom end than our stock cast crank.

I'm not saying that is the only reason, but it is one important factor.

Jester

Another big factor is less reciprocating wieght. They have alot smaller bores than we do (I believe, I'm not an import expert).That alone means lighter pistions. I'm sure alot of the other interior componets are lighter too. That makes for less stess on the engine per RPM than ours.

HrdRockA4305

-nodding head while reading other replies-

I'll admit i've picked up a few issues of turbo at the news stand before, just to see something different from a change. My basic theory on that is that the engines are made with assumption that they will be revved to hell and back, so they have a very light/strong bottom end. Thats just the way i figure it anyway. A supra engine in a MkIV is actually about a 450 horse engine detuned and de-boosted to run at about 320 from what i've read, they are badass cars.

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88 Base Camaro
305 Auto
All Stock....for now

jcb999

did you see this
http://www.supraforums.com/cgi-bin/u...c&f=1&t=001721

89BlwnRs

There's no doubt the Supra is a hect of a car. Does anybody know what the displacement is on the newer ones?

To help us Domestic guys save face, George Baxter's 97 SS convertible puts 910 hp to the ground with 800 foot pounds of torque. That comes from a blown 383 w/ a Vortech y-trim supercharger. Unfortunately I was unable to find out how much boost he's pushing with that.

Jason

Yarnboy

Fùck you man..You don't need to be mean. I wasn't trying to be a smart *** ..

------------------

• Red '88 IROC 5 Speed 305 TPI w/3.08
• Dual Friction Stage III Centerforce Clutch
• Accel 300+ Racing Ignition
• Accel 300+ Pro Sleeve Plug Wires
• AC Delco Rapid Fire Plugs
• Flowmaster Force II 3 Chamber Cat Back Exhaust
• Hypertech Chip
• Hypertech Airfoil
• Gutted Air Box
• Best Maryland (40 degrees) E/T 14.686, 60' 2.205, 1/8th mile 9.461, 1/4 mile MPH 93.91
• Best Florida (80 degrees) E/T 14.88, 60' 2.163, 1/8th mile 9.540, 1/4 mile MPH 92.74
• Best 60' 2.163(Florida)
• TPiS AFPR set to 42psi using Accel Fuel Pressure Gauge (Installed after Maryland run)
• Aluminum Driveshaft (Installed after Maryland run)

LottaBallsCamaro

my bad man, I didnt realize how mean I sounded. No hard feelings...

Yarnboy

Heh..no hard feelings..I didn't mean to be mean either. I have wondered the same things about Supra's..a guy from where I used to live in MD was running high nine's..It was insanity..He also spent over 30k in mods..

------------------

• Red '88 IROC 5 Speed 305 TPI w/3.08
• Dual Friction Stage III Centerforce Clutch
• Accel 300+ Racing Ignition
• Accel 300+ Pro Sleeve Plug Wires
• AC Delco Rapid Fire Plugs
• Flowmaster Force II 3 Chamber Cat Back Exhaust
• Hypertech Chip
• Hypertech Airfoil
• Gutted Air Box
• Best Maryland (40 degrees) E/T 14.686, 60' 2.205, 1/8th mile 9.461, 1/4 mile MPH 93.91
• Best Florida (80 degrees) E/T 14.88, 60' 2.163, 1/8th mile 9.540, 1/4 mile MPH 92.74
• Best 60' 2.163(Florida)
• TPiS AFPR set to 42psi using Accel Fuel Pressure Gauge (Installed after Maryland run)
• Aluminum Driveshaft (Installed after Maryland run)

Ovrclck350

I'm going to put my thoughts into this. Those engines were MADE to be turboed. Therefore they made the engine able to withstand the PSI's.

Hype

Maybe it's the 15+ beers I drank this evening, and the fact that it's 3am and I'm running on close to no sleep, but I find it fairly hilarious that these guys are running around in 800-900horse rice rockets and I'm almost sh*tting my pants that my 305ci LG4 in my T/A is damn near close, if not on that 300 horse mark now, after HUNDREDS of hours of learning about working on cars going from oil changes, not even that long ago, to porting up and swapping a set of heads, degreeing cams, whatever. Not to mention that 17 second P.O.S. '80 T/A with the oh-so-sweet 301ci slapped between the fenders.
By the way, I had an early 90's RX-7 absolutely blow my doors of earlier this evening, even up a steep hill where my 3.73's and torque would/shoulda helped me, by a couple of.. mmm.. exchange students. And yes, I can drive.

Sigh...

Ray87Z

I'm sorry to say but I've been on a Supra kick for the last couple weeks. And I'm selling out and getting one as soon as possible.

If all goes well this summer and I get a "real" job like I'm planning to do then I'm ponying up and snagging a 94-95ish Supra Turbo. The car is just too badass. 4 wheel indenpendant suspension, traction control, etc. It's a Corvette level car, only made better. The STOCK rearend and drivetrain can handle 500+ hp.

I'm going to be going w/ the standard Basic Performance Upgrade mods, "BPU" mods. A RMM downpipe for $300, a Greddy BCC ($100ish, to avoid fuel cutoff at higher than stock boost), a cold air intake, and a manual boost controller (<$100) and your standard boost guage (<$75). With the boost cranked to the standard 17-18 psi (stock is 11.5 psi I believe) with these mods the engine will live forever and the damn thing will be putting out 400-425+ hp at the crank, bare minimum of 350ish hp at the wheels, as high as near 400 at the wheels are what all the guys are seeing w/ these mods. That is flat out nothing for mods and the goddang car will get up and move some serious *** . That's not even messing w/ the stock intercooler or turbo setup, there's more power to be had in the engine easily. I'll stay "BPU'd" for awhile at least while I pay the car off.

I'm planning on getting an auto, they have a really sweet electronically controlled 4 speed auto w/ a switch for full manual shifting. 3.73s stock on the autos. The whole car is freaking bulletproof almost.

I was just looking at the autotrader today. There was a nice black on black leather 94 twin turbo for $16,000 obo. Targa top. Several others around $20k ish.

Have you seen the interior? They have the sweetest wrap-around dash setup I've ever seen. The build quality of the whole car in general just beats the **** out of even a new Vette, not just on interior either.

I really do think it is the best made car on the road, I can't wait to get one. I'm going to beat the **** outta my buddies brand new 2001 C5 Vette he just got, haha, can't wait... I'll feel bad about getting one, and I don't like the ***** high-rise wing, but I'll get over it... With near 400 rwhp I can get away w/ a big wing...

The reason why they can handle the boost is the things are overbuilt, and made right from the factory to live w/ boost. Not an afterthought anywhere on the car or in the engine. It was/is a very expensive car though, I think it's worth it though. I'll be close to viper (current Viper GTS puts down 400ish RWHP stock) performance in a very well made car that looks pretty mean, has a badass interior, bulletproof drivetrain, and doesn't break the bank. I haven't found a better car to get...

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Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray


[This message has been edited by Ray87Z (edited April 30, 2001).]

jobryan26

There was a nice black on black leather 94 twin turbo for $16,000 obo. Targa top. Several others around $20k ish.

Damn I'd buy a vette but that's just my opinion and everybodys got one. I'm sorry and no offense but I think the Supras are ugly but they would smoke my car. That's why I'd buy a Vette.

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'87 Trans Am:
(Engine)
305 TPI
180 Degree Thermostat
JET Fan Switch
TB Bypass
Accel 300+ 8.8 Racing Wires
Accel Super Coil
Bosch Platinium Plugs
Custom Ram Air with K&N
Removed Emissions Equipment & Cat.
(Stereo)
Full Kenwood Excelon System

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