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1990 Celica GT-S

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  #11  
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Nick Bourne
 
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Default Re: 1990 Celica GT-S - 05-18-2007 , 02:28 AM






Hachiroku ハチ*ク wrote:
Quote:
On Thu, 17 May 2007 17:35:31 +1000, Nick Bourne wrote:

Nick Bourne wrote:
Hachiroku ハチ*ク wrote:
On Wed, 16 May 2007 14:28:26 -0700, Jack wrote:

On May 16, 10:28 am, Hachiroku ハチ*ク <Tru... (AT) AE86 (DOT) gts> wrote:
On Wed, 16 May 2007 11:21:37 -0500, Ray O wrote:

"Jack" <oregon... (AT) yahoo (DOT) com> wrote in message
news:1179330728.120439.257120 (AT) q75g2000hsh (DOT) googlegroups.com...
I just bought a 1990 Celica GT-S. It has a five speed and driving
home I saw it was running around 3000 RPM between 65-70 mph. This
is a much higher RPM than I have seen in other Toyotas I have
owned. The speedometer was dead on accurate on its speed. Should I
consider this normal for this car?
thanks
Jack
300 RPM seems like the high side of the normal range. How did you
verify that the speedometer was dead on accurate at 65 MPH? I
assume you were if 5th gear? Are the transmission and differential
original or replacements?
And, what's on the car for tires?
205/50-15

Hmmm...that's the correct size....

I thought maybe they were replaced with a different sized tire the
would throw the speedo off, but that is the proper size...


My dad has a 86 ST162 that runs at 3500rpm on the highway, this is
normal for the cars with the GE motor. he has changed the motor and
transaxle to a mid 90's JDM spec but before that it ran at about
3000rpm. if it's running well you should get close to 30mpg cruising on
the highway with that RPM.

While I think about it. The Celica normally have a 4.1:1 diff and a 0.86:1
5th gear. for a 205/50-15 tyre the outside circumference is 72.5 in which
is ~874 revs/mile and you do about a mile per minute on the highway. so
874 x 4.1 x 0.86 = 3081RPM. so the 3000rpm indicated is fine.


HOLY CRAP! Talk about "Do the math"!

Yeah I was having a rain man moment


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  #12  
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Nick Bourne
 
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Default Re: 1990 Celica GT-S - 05-18-2007 , 02:48 AM






Jack wrote:
Quote:
On May 17, 12:35 am, Nick Bourne <"nabourne at tpg.com.au"> wrote:
Nick Bourne wrote:
Hachiroku ハチ*ク wrote:
On Wed, 16 May 2007 14:28:26 -0700, Jack wrote:
On May 16, 10:28 am, Hachiroku ハチ*ク <Tru... (AT) AE86 (DOT) gts> wrote:
On Wed, 16 May 2007 11:21:37 -0500, Ray O wrote:
"Jack" <oregon... (AT) yahoo (DOT) com> wrote in message
news:1179330728.120439.257120 (AT) q75g2000hsh (DOT) googlegroups.com...
I just bought a 1990 Celica GT-S. It has a five speed and driving
home I saw it was running around 3000 RPM between 65-70 mph. This is
a much higher RPM than I have seen in other Toyotas I have owned.
The speedometer was dead on accurate on its speed. Should I consider
this normal for this car?
thanks
Jack
300 RPM seems like the high side of the normal range. How did you
verify that the speedometer was dead on accurate at 65 MPH? I assume
you were if 5th gear? Are the transmission and differential original
or replacements?
And, what's on the car for tires?
205/50-15
Hmmm...that's the correct size....
I thought maybe they were replaced with a different sized tire the would
throw the speedo off, but that is the proper size...
My dad has a 86 ST162 that runs at 3500rpm on the highway, this is
normal for the cars with the GE motor. he has changed the motor and
transaxle to a mid 90's JDM spec but before that it ran at about
3000rpm. if it's running well you should get close to 30mpg cruising on
the highway with that RPM.
While I think about it. The Celica normally have a 4.1:1 diff and a
0.86:1 5th gear. for a 205/50-15 tyre the outside circumference is 72.5
in which is ~874 revs/mile and you do about a mile per minute on the
highway. so 874 x 4.1 x 0.86 = 3081RPM. so the 3000rpm indicated is fine.

Thanks to all for the info.

One more question. I believe they have replaced the engine. Where on
the engine would I find the engine code?

thanks

Jack



being a 1990 gts you will mostly likely have 2200 in the intake
manifold. the engine serial number of remember correctly is under top
radiator hose outlet on the back of the motor.


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