the hell happened to my engine?!
#1
the hell happened to my engine?!
ok... so the story is.. i have a '84 SE with 215k orig miles. last week my motor started acting up... idled a little rougher than usual... backfired a bit more... kind of made me think a rotor was getting low compression..
so a forum member (thanks roger!) brought over a compression tester and i look at the numbers on the engine... a little low all around. 80-85ish... yeah it's an old engine...
so i decided to investigate further... pulled off the trailing plugs to inspect them and when i pulled of T2, my hand got soaked! coolant was pretty much gushing out of the plug hole.
my car wasn't smoking last time i drove it when i noticed the stumble, which would have been a warning sign of a coolant gasket leak... kind of confused here...
so a forum member (thanks roger!) brought over a compression tester and i look at the numbers on the engine... a little low all around. 80-85ish... yeah it's an old engine...
so i decided to investigate further... pulled off the trailing plugs to inspect them and when i pulled of T2, my hand got soaked! coolant was pretty much gushing out of the plug hole.
my car wasn't smoking last time i drove it when i noticed the stumble, which would have been a warning sign of a coolant gasket leak... kind of confused here...
#4
total bummer. the car was running like a champ a week ago. the only think i think that could have killed it was my 130mph run across lake washington..
at least she went out in a blaze of glory. kind of. i guess.
is this a common thing to have happen w/o any warning signs?
at least she went out in a blaze of glory. kind of. i guess.
is this a common thing to have happen w/o any warning signs?
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#8
Banned. I got OWNED!!!
When I was young and stupid (okay, younger and stupider) I took mine to 125 mph on the interstate and the front end felt okay... not great, but it had another 5 mph for sure.
#12
Banned. I got OWNED!!!
Yeah. Only the 80-81-82 had 85 mph speedos. With those, you could always tell your speed by engine RPM.
I think it's more likely that the one you drove had a bad steering box or a weak suspension.
I think it's more likely that the one you drove had a bad steering box or a weak suspension.
#15
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
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Originally posted by dblboinger
130 mph in a 1st gen rx7? I doubt it. Having owned 2 prior to the one I have now I can tell you at speeds anywhere near that high the front end floats like it was full of helium and it is nearly impossible to control.
Got any bridges for sale?
130 mph in a 1st gen rx7? I doubt it. Having owned 2 prior to the one I have now I can tell you at speeds anywhere near that high the front end floats like it was full of helium and it is nearly impossible to control.
Got any bridges for sale?
A certain forum member has had his turbo 1st gen up to 200mph as verified by the ecu's data logger. That's on a stock bodied 1st gen. with stock *based* suspension.
#16
yeah. my speedometer reads about 10% fast. it was pegged on 140 as i tore *** down the hill to the floating bridge, so i figure it was about 125-135.. the top speed on the GSL-SE is about 130 iirc. hell i got my old '83 GSL up to 120 on the same spot.
opening the sunroof helps stability a bit at high speeds, but you're right, dblboinger, the front end of the car does get floaty. i certainly wouldn't try to turn the car at those speeds.
opening the sunroof helps stability a bit at high speeds, but you're right, dblboinger, the front end of the car does get floaty. i certainly wouldn't try to turn the car at those speeds.
#17
"A certain forum member has had his turbo 1st gen up to 200mph as verified by the ecu's data logger. That's on a stock bodied 1st gen. with stock *based* suspension."
WOW! That's SICK!
WOW! That's SICK!
#19
Banned. I got OWNED!!!
Yeah, I find that really hard to believe. At 200 mph, a minor bump in the road could turn you into the third Wright brother.
#21
If you want to try it, a guy I know who races his on track raised the rear of the hood a inch or two giving the air some place to escape. I haven't seen it since he put in his new 13b from 12a (from 200hp to 300hp ) but it seemed to help some.
But your best bet to keep the nose on the ground at those speeds is a front dam and lower suspension.
In my stock SE I've only got to around 115 and at that point it feels like the car is going up, up and way. In a stock car I would feel a little unsecured at anything +115 or so but what do I know... it seemed a little to light for me but I’m younger and try not to be to stupid. This car is my baby. I don’t want its and my last moments to be taking to the skies.
But your best bet to keep the nose on the ground at those speeds is a front dam and lower suspension.
In my stock SE I've only got to around 115 and at that point it feels like the car is going up, up and way. In a stock car I would feel a little unsecured at anything +115 or so but what do I know... it seemed a little to light for me but I’m younger and try not to be to stupid. This car is my baby. I don’t want its and my last moments to be taking to the skies.
Last edited by schultze; 06-11-04 at 12:14 PM.
#22
Yeah, shutup kid.
Originally posted by dblboinger
130 mph in a 1st gen rx7? I doubt it. Having owned 2 prior to the one I have now I can tell you at speeds anywhere near that high the front end floats like it was full of helium and it is nearly impossible to control.
Got any bridges for sale?
130 mph in a 1st gen rx7? I doubt it. Having owned 2 prior to the one I have now I can tell you at speeds anywhere near that high the front end floats like it was full of helium and it is nearly impossible to control.
Got any bridges for sale?
#24
Yeah, shutup kid.
When I did that it was a stock port 12a with 135kmiles on it. Blowthrough nikki turbo with a TII turbo running 14psi. It got to 8k in 5th fast Now it's a streetport 12a with a weber 48dco-sp, TII Turbo, still tuning. But it's as fast now with 6psi as it was with 10psi. Once I finish tuning I'll probably just plug the wastegate line It should have no problems running 12's.