Newbie ---rpm @100kph

[mutley]

HI Guys I am a newebie, so be gentle with me LOL.

I have recently bought a 1990 seca liftback AE 93.5 spd twin cam engine. 214000k's. its a bit of a ruffy!!! i have a couple of questions.

the engine is doing 3300 RPM @ 100KPH in 5th gear is this normal? as it feels like it needs another gear. it has 185/60/14 wheels.

It runs rough when it gets hot any ideas on why and what i need to do to fix?

also it needs another bonnet is there a variety of models(sedan?) that use the same bonnet or do i need to get one from a lift back?

Also i wiould like get pair of front seats are there seats out there that will bolt straight in that are more comfy?

Apart from that its a great little car!

Cheers mark

[RainWarriorDregs]

sorry mate, got no info on your questions, but 3300RPM at 100 doesn't sound too bad

 

my ke70 runs about 5500 rpm at 100km/h

 

 

 

it only has 4 gears :)

 

 

definitely needs another slotted in there

[irokin]

my ke70 runs about 5500 rpm at 100km/h

 

What!? Sounds a bit high! I had a 4.3 diff and a 3 speed traumatic and that was only 4200rpm at 100kmph. What kinda diff ratio are you running :)

 

As for the OP, that RPM sounds about right. When you say it runs rough when it gets hot do you mean engine temperature or ambient temperature?

[hugh88kw]

my 1986 rolla twin cam 3300rpm at 100kmh (bigport) 4000rpm and hell starts to break loose

[7shades]

HI Guys I am a newebie, so be gentle with me LOL.

I have recently bought a 1990 seca liftback AE 93.5 spd twin cam engine. 214000k's. its a bit of a ruffy!!! i have a couple of questions.

the engine is doing 3300 RPM @ 100KPH in 5th gear is this normal? as it feels like it needs another gear. it has 185/60/14 wheels.

It runs rough when it gets hot any ideas on why and what i need to do to fix?

also it needs another bonnet is there a variety of models(sedan?) that use the same bonnet or do i need to get one from a lift back?

Also i wiould like get pair of front seats are there seats out there that will bolt straight in that are more comfy?

Apart from that its a great little car!

Cheers mark

 

I would be checking to see if the thermostat is opening all the way first... May as well just replace it, they're cheap. and easy to swap.

Secondly have a look to see if all the f*cking annoying little vacuum/anti pollution hoses are connected to something. If you see a loose hose, attempt to find where it goes. If you can't, just plug it with something and see if that makes a difference.

I would wager a tube has fallen off the cold start/idle enrichment system.

Also remove the intake from the manifold, visually inspect the throttle butterfly for corrosion around the edges, it may not be forming an adequate seal at idle. Its also possible the intake manifold itself is a little gunked up, spray a bit of carby cleaner in there with the engine at 2000rpm and watch the smokeshow :)

 

 

3300 is about right

 

The bonnet is specific to the seca... Hatch and sedan are different.

 

Seats from a csx, sx or RV variant are slightly better, and bolt straight in... Still nothing special though.

[JamieMA61]

nah thats heaps, my civic pulls 4000rpm at 160 in 4th.

 

probably shouldn't be doing that with my rim as buckled as it is though.

[Evan G]

wtf i just did some calculations to find out the RPM I'm doing at 100kph and its telling me 7 grand ? LOL?

 

4k, trumatic, 4:11 and 13's

[bucky]

mmm thats probly not the best for the 4k. :)

 

 

i have the same running gear so hopefully you wrong

[clubby2084]

Ah the wonders of 4 speed overdrive auto's. 2200rpm at 110km/h.

[Evan G]

mmm thats probly not the best for the 4k. :)

 

 

i have the same running gear so hopefully you wrong

 

I'm guessing its around the 3000/500 rpm mark at 100kph

[mutley]

I would be checking to see if the thermostat is opening all the way first... May as well just replace it, they're cheap. and easy to swap.

Secondly have a look to see if all the f*cking annoying little vacuum/anti pollution hoses are connected to something. If you see a loose hose, attempt to find where it goes. If you can't, just plug it with something and see if that makes a difference.

I would wager a tube has fallen off the cold start/idle enrichment system.

Also remove the intake from the manifold, visually inspect the throttle butterfly for corrosion around the edges, it may not be forming an adequate seal at idle. Its also possible the intake manifold itself is a little gunked up, spray a bit of carby cleaner in there with the engine at 2000rpm and watch the smokeshow :)

 

 

3300 is about right

 

The bonnet is specific to the seca... Hatch and sedan are different.

 

Seats from a csx, sx or RV variant are slightly better, and bolt straight in... Still nothing special though.

 

HI folks, thank you all for such an informative and speedy reply.

i will start checking for those vacum hoses asap and get a can of carby clean, thermostat see where to go from there.

I was concerned about the revs, as my 98 camry auto sits on about 3300 in 3rd(top) then drops almost a 1000 rpm in overdrive so its good to know the seca is normal..

Its been a long time since i have had a corolla in fact it was a Ke 20 i think? with a 5 spd. about 20 yrs ago!!

 

I know now what to look for at the wreckers re my bonnet/seats. makes life a lot easier.

 

thank you again, you have been very helpfull!

Cheers Mark

[bucky]

I'm guessing its around the 3000/500 rpm mark at 100kph

 

yah i think thats a little more like it id bet a litte higher thow maby 4. 4.2 range mine dosnt rely like sitting on 100

[19914afc]

my ae92 rolla sits on 3100 at 110kmph with 205/45r17 wheels/tyres.

[carbonboy]

Howdy,just as a note seats from a honda prelude (equivalent year) bolt into an AE82 so it may be worth some measuring to see about an AE92.....they're damn comfortable,much better than the standard toyota fare :-( Honda better=Fail

Cheers

[quadeyquade]

Mine was like this when the clutch started to go, it wouldn't gain power in the gears so had to go into 4th all the time