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Location:
Northwestern Sydney
Registered:
August 2002
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Location:
Sydney
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 02:33
 
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Hey dude..
I allways thought that this setup would hammer as well..
The only but i can see is the lenth of the 1jz would put it over the front a bit..
BUT!!.. after messuring.. it aint all that much longer than a 1GGTE.. soo hmmmmmm...
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 02:50
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Not much longer but it Is heavier.
One on my Aims is to see if it is realistic to pull the difference in weight out of the engine bay and get rid of or relocate it, And see how much front end is left.
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Location:
Perth
Registered:
October 2003
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 05:28
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Lextreme quotes the complete 1JZGTE weight as 217kg. Hope this helps.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 05:43
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Thanks Skip, I'll assume that isn't including gear box.
Anyone else?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 06:23
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| Skip wrote on Fri, 21 November 2003 16:28 |
Lextreme quotes the complete 1JZGTE weight as 217kg. Hope this helps.
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LOL, thats a third of the weight of my car!!!
as for stock front/rear wieght bias, best thing would be to take a stock car to a weigh bridge, put front wheels on, then put back wheels on...
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 09:24
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i thought weight bridges could tell you the weight distrobution\load over each tyre etc?
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 11:57
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well as for stock RA28 with 18R-GU weight goes.. i was just down at the Seven Hills waste disposal centre last week... and the celica weighed in at 1240kgs. That was with me and a mate wieghing 140kg together.
Have a look at how much further the 1JZ comes from the engine mounts compared to a 1G, that might give you and idea of distribution.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Fri, 21 November 2003 13:00
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| Quote: |
Have a look at how much further the 1JZ comes from the engine mounts compared to a 1G, that might give you and idea of distribution.
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That's pretty much what I'm looking at doing.
I might try to get to a weighbridge tomorrow
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Location:
Westleigh, Sydney
Registered:
October 2003
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Re: 1J into RA28 - anaylisis
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Sat, 22 November 2003 00:11
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an 18rg weighs about 140kgs, so ive been told.
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Location:
Canberra
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Sat, 22 November 2003 10:39
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For what its worth, when I had my previous RA28 Celica engineered, the total weight of the 28 with a 1G-GTE and auto was 1200kg, distribution was 620kg front, and 580kg over the rear wheels. The 28 would have a higher rear end weight than a 23, by how much, not quite sure.
regards Chuck
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Location:
Adelaide
Registered:
June 2003
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Re: 1J into RA28 - anaylisis
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Sat, 22 November 2003 14:46
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Our 18rc weighed 140kg with aircon pump.
Our 18rgu weighed 130kg without aircon pump.
From memory, the alloy head did reduce the weight from the 18rc to the 18rg, but only slightly.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Sun, 23 November 2003 21:28
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| ChuckLandwehr wrote on Sat, 22 November 2003 21:39 |
For what its worth, when I had my previous RA28 Celica engineered, the total weight of the 28 with a 1G-GTE and auto was 1200kg, distribution was 620kg front, and 580kg over the rear wheels. The 28 would have a higher rear end weight than a 23, by how much, not quite sure.
regards Chuck
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Chuck
Was the car otherwise standard ie battery in the front standard interior appointments etc. What brakes did you have on the front?
(hilux,Pug conv?)
I just need the weight of the 1G-GTE. 
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Location:
Canberra
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Mon, 24 November 2003 11:57
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Lambolica, the brakes were the RA60 disc/MX63 Cressida combination. Battery was in the engine bay. Aircon was also fitted. The surge tank and HP fuel pump were also in the engine bay.(can't really have them in the back of a hatch) And some big ass rubber on 7 X 14 heavy as shit chrome steel rims, 215/225 60's from memory. The interior was daed stock factory original.
regards Chuck.
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Location:
Adelaide
Registered:
November 2003
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Re: 1J into RA28 - anaylisis
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Mon, 24 November 2003 14:50
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| Lambolica wrote on Fri, 21 November 2003 23:30 |
| Quote: |
Have a look at how much further the 1JZ comes from the engine mounts compared to a 1G, that might give you and idea of distribution.
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That's pretty much what I'm looking at doing.
I might try to get to a weighbridge tomorrow
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Heres a list of celica weights (All in Kg) From a document i found on the web.
<1600 ST/LT> Gross weight Weight
B-TA35-LK 1,210 990
B-TA35-LM 1,210 990
<2000 ST/LT>
C-RA35-LK 1,255 1,035
C-RA35-LM 1,260 1,040
C-RA35-LH 1,260 1,040
<2000 DOHC/GT>
A-RA28-MQGU 1,305 1,085
<2000 DOHC/GTV>
A-RA28-MXGU 1,310 1,090
From factory specs, the 1JZ weighs 217Kg (Including turb's, no gearbox). Im not sure about the weight of the JZ gearbox though. If it helps i remember the RA28 gearbox weighs 40Kg, so the 20R engine weight is about 180Kg.
To better balance the celica, try lightening the load at the front by moving the battery to the boot, and by using aluminium brackets where/if possible. Either that or go the other way, and increase the load at the rear by e.g. installing a surge tank. This should allow the engine to drink a bit deeper as well as putting a higher load on the rear end.
Most 1JZ/RA28 conversions ive seen use a 94' hilux rear disk and LSD conversion. There is a paper on it somewhere on this site too.
A good site to look at is:
http://www.speedtoys.com/~marcel/
Hope this helps!
Regards, Cookie
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Location:
Cabramatta, NSW
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Tue, 25 November 2003 07:07
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From figures that I got from one source:
1G-GTE: 175kg
1JZ-GTE: 200-205kg
Prolly weighed without accessories.
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Location:
Canberra
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Tue, 16 December 2003 10:25
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Hi guys, just to add some more figures to the thread, I just put my RA23 powered by 1JZ-GTE VVTi over the weighbridge, here are the numbers:
Front axle: 640kg
Rear axle: 500kg
Total Weight 1140kg
No weight redistribution has been carried out prior to this initial weigh.
60 kilos lighter than the RA28, and SH**# loads more power! 
Regards Chuck.
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Location:
Colac, Victoria
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Tue, 16 December 2003 11:12
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how do you find the front end handling chuck - pretty balanced out - or lead tipped arrow ?
this has been a question in the back of my mind for a while
( still planning on getting a retro oldschooler happening after the gt4 is done - 1uz ra28/1ggte ra23/3sgte ta22 would be fun )
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Location:
Canberra
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Tue, 16 December 2003 11:31
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Hiya Stuart, yeah I thought it would be heavy in the front, but it is not too bad. She's no circuit racer ATM, but is Very respectable on the highway and around towm. Sensible settings for caster, camber, and toe, have all been worthwhile.
Lead tipped arrow, no way, it is more like a cruise missile on wheeels.
I got the car engineered today, and the only criticism was 100 decibels instead of the required 96. This was after doing brake endurance testing, and collision avoidence testing.
In the near future, I will be playing with spring rates, roll centre adjusters, and rebound and dampening settings.
regards Chuck.
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Location:
Brisbane
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Tue, 16 December 2003 14:39
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| ChuckLandwehr wrote on Tue, 16 December 2003 20:25 |
Total Weight 1140kg
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60 kilos lighter than the RA28
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Who told you an RA28 weighs 1200kg??
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Wed, 17 December 2003 03:15
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| ChuckLandwehr wrote on Tue, 16 December 2003 21:25 |
Hi guys, just to add some more figures to the thread, I just put my RA23 powered by 1JZ-GTE VVTi over the weighbridge, here are the numbers:
Front axle: 640kg
Rear axle: 500kg
Total Weight 1140kg
No weight redistribution has been carried out prior to this initial weigh.
60 kilos lighter than the RA28, and SH**# loads more power!
Regards Chuck.
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Have you doe any work to the firewall or is the engine proud of the wall? If in the firewall by how far?
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Location:
Canberra
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Wed, 17 December 2003 23:44
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having seen this car in the building stages, and now seeing it finnished,
the engine bay is pretty full as you can imagine. but i dont believe that any firewall "improvements" were made.
just new crossmember mounts,
not 100percent but yeah.
this one is definatly going to be a head turner at the Toyota Nationals if it makes an apearance. 
which i dare say it will.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 1J into RA28 - anaylisis
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Thu, 18 December 2003 00:03
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I'd like to see photos of the install for intrest sake.
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Location:
Canberra
Registered:
December 2002
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Re: 1J into RA28 - anaylisis
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Thu, 18 December 2003 00:42
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I agree with always23 it is a very nice install and gets the thumbs up 
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Location:
Canberra
Registered:
May 2002
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Re: 1J into RA28 - anaylisis
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Fri, 19 December 2003 05:52
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Norbie: "60 Kilos lighter than the 28" 1200kg with 1G-GTE Auto. Maybe that should have read MY 28
Lambolica: No mods to firewall, actually had room to move the radiator "back" 10mm.
I will upload all the pics. when I can find somwhere to host them.
Jason and Phil, ta.
regards Chuck
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