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Location:
Melbourne
Registered:
October 2003
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consequences of too much power?
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Fri, 24 October 2003 06:47
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hey all,
i am sure someone has asked this question before, buti couldn't seem to find it, so i'll ask it again.
what are the consequences of too much power in an older car.
i know what has to be upgraded -
brakes, suspension, enigine mounts, drivetrain etc..
but what i really want to know about is the effects on the car itself; will it take the increased power being delivered? will the car twist too much and do all sorts of other stupid stuff?
oh, prbly should give you all some stats:
car - rt104 Corona
currrent engine - 18rc (worked)
proposed engine - 1gg(t/z)e
any thoughts on the matter?
cheers
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: consequences of too much power?
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Fri, 24 October 2003 06:56
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If you spend alot of time lanching your car, the tourqe in the engine can twist the chassis and body over time and weaken or break spot welds. I'll be putting a 1G-GTE in to my car and I'll be welding up all the seams before it goes in. Some engineers like to see this done to pass as well.
I'm guessing that increasing overall performance of the car (suspension bigger wheels etc.) would also adversly effect the standard fixing points of the steering suspension as one can corner harder thus placing more stress on them. I haven't heard of anyone beefing up steering components or mounts however.
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Location:
Perth
Registered:
May 2003
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Re: consequences of too much power?
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Fri, 24 October 2003 06:57
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course it will its metal 
get weldi!
< im planning on a 7mgte in that lets see if the wheels fall off
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Location:
Melbourne
Registered:
October 2003
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Re: consequences of too much power?
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Fri, 24 October 2003 07:01
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i did, that is with the steering.
well, ok, not beefed up, just took the whole system apart and got everything checked and rechecked. thought it was a good idea, and i don't regret the cash i coughed up for it.
so the general consencus is to get out there and uber-weld it up
other thoughts?
cheers
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Location:
Brisbane
Registered:
May 2002
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Re: consequences of too much power?
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Fri, 24 October 2003 14:03
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Unless you're building a race car I wouldn't worry about welding up the chassis. Sure a 1G has a lot more power than an 18R-C, but it's hardly a torque monster. RT104's are fairly robust anyway.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: consequences of too much power?
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Fri, 24 October 2003 14:11
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Norbie,
I've spoken to an engineer on the subject.. he, in a round about way, said I'd need to weld up the seams to pass it is this correct?? I hadn't heard of this before.
and in respect to the question of TOO much power I was visualising enough power to lift the front of the car significantly. But how much power is too much power???
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Location:
Brisbane
Registered:
May 2002
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Re: consequences of too much power?
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Fri, 24 October 2003 14:52
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I have a 400hp engine in my Supra (original power output was approx 120hp on a good day), but my engineer made no mention of seam welding or anything of that sort. I have quite a few friends who have done big HP engine conversions and none of them have been required to do any chassis strengthening either. I can see it being required in extreme circumstances, but a 1G Corona isn't what I'd call extreme.
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: consequences of too much power?
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Sat, 25 October 2003 00:51
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at the end of the day it all depends on what the engineer wants you to do to pass it
they could probably say they wont engineer it unless you put on fluffy door trims in psychedelic yellow
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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: consequences of too much power?
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Sat, 25 October 2003 07:06
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Consequences??? Ummmm, a big grin and an empty wallet!!!
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Location:
Montrose, VIC
Registered:
May 2002
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Re: consequences of too much power?
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Sun, 26 October 2003 01:49
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Consequences... black tracks, and splintered power poles - it's amazing how roadside furniture can move over 
As for strength, an RT104 would look tough with a fat roll cage 
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Location:
Canberra
Registered:
May 2002
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Re: consequences of too much power?
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Sun, 26 October 2003 09:42
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Hi Byatch, I have had an RA28 engineered with a 1G-GTE, no seam welding required. Ok I live in Canberra, but the standards used in the ACT are lifted from NSW, so the engineer only required a disc brake up grade (MX63 cals.RT132 struts, RA60 disks). I have a good friend who did the same mods to his TA23 Celica, he lives in NSW. But before starting any conversion, talk to an engineer. Their advice is free, but the engineering report/ certificate is what you pay for.
good luck with the conversion, Chuck.
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Location:
Brisbane
Registered:
October 2002
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Re: consequences of too much power?
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Sun, 26 October 2003 12:15
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consequences: hard-on 
btw, go the mighty RT104
u WILL have problems with diffs and suspension, trust me 
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I supported Toymods
Location:
Oyster bay NSW
Registered:
May 2002
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Re: consequences of too much power?
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Sun, 26 October 2003 14:37
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Like every one is saying talk to an engineer. and get there advise. Is sum cases they do a test on the cars chassis for twist strength. but a 1g should be fine in a RT104 they already have a box section front sub chassis.
As for the ultament Consequence, Worked 5Lt(305cu) Chev in RA40, first burn out car twisted and back window shattered.
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