Project Zero G Forums

Wow long time since i was here, I did solve the oil cooler fittings by using banjo bolts and hard lines swaged to pushfit connectors. It's all in and looking good, motor is running again, but not much else in the way of progress for over 12 months now, been too busy working on houses etc.

Will be ...

They are toyoda 4age throttles 43mm, the runners are a linear taper from the throttle diameter to a nominal size aproximately halfway between that of a 4g63's ports and that of a 4g61's port, that way it should be quite a smooth linear run from the throttle to the valves. The runners allow for ...

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Yeah, i get what you're saying, but add to the equation the 'state of the ark' steering and suspension currently in employ and things get a bit nasty and hairy, that being said race cars are never finished and are in a constant state of improvement, who knows once some handling things are sorted it ...

Hi Dan,

I'm thinking of putting a N/A motor into a 75 colt GTO. Specs are a little fluid at the moment. Initially I am/was thinking of a pretty standard 4g63 bottom end, but with AMG spec pistons and using the standard 4g63 head etc with the AMG computer that I have. The other option I am ...

For what i am doing the silvertops should be ample, ultimate goal with the throttles is to get a good solid throttle response in maid range, and also to bring the torque peak lower in the rev range, thus the need to keep gas velocity up in the inlet.

Are you building an N/A motor? what sort of ...

Interesting,
By my claculations the area of the intake ports of both heads are as follows:
4g63 (non turbo, but i'm sure it is the same for turbo) 21.67cm2
4g61 (going off dwlee's measurement) 14.06cm2

About 30%smaller, and almost the same area as the throat of 4age silvertop throttles 14.5cm2 ...

You might want to try to use a RWD pickup truck (2.0 or 2.4) oil pan. The pan is flat and doesn't hang as low. I'll snap some pictures tomorrow so everyone can compare.

Does the RWD pickup pan clear the girdled mains of the 4g63?
I used a pan from an l300 van, in order to have the pan not ...

Update time.

Still havent finished painting, had an issue with the paint i was using, has gone on looking like sandpaper, probably due to my noobness with a spray gun, oh well just means a lot of rubbing back.

Have finished the oil cooler and associated components, new catch tank, remote filter ...

Why not a portmatched plate with 2 sets of bolt holes, 1 set in the stock location, and 1 set rotated. Simple and easy.

I made one like this when i was toying with the idea of turboing my lancer, cost me a dozen beers to get it cut, did all the drilling myself.

Got some primer squirted at it today, got through half a pot before i realized i had set the spray pattern wrong, was wondering why i wasn't getting much coverage. DOH.

All fixed now, rubbed it down ready for a top coat of refrigerator white. :D

Haven't done the guards or bonnet yet, debating ...

Pillars all fixed, looks a little huckery but it'll do the job.
http://img441.imageshack.us/img441/9654/pict0010cj2.jpg
http://img405.imageshack.us/img405/1050/pict0011hr6.jpg
Gave my altered sump a coat of paint and bolted it up, 2mm clearance to the crossmember, good thing i have nice hard ...

Found some info on a forum:

4g63= 47cc
4g67= 43cc
4g61= 41-43cc

Don't know the accuracy of these figures, but according to where i found the data the g67 head increases cr by about .4

So with the AMG pistons and the g67 head i'd see around 10.8-1 without any machining.
http://buschurforums.com ...

Intereesting, i had not heard of the high comp head before, do you have any indicative figures of how much smaller it is or possible static CR when swapped to a 63?

I have amg spec pistons to go into the motor, they give a static CR of 10.4ish to 1 with a stock 63 head.

When you do get around to doing the cylinder head you should consider the one from the 1800, we only got them in Hyundias over here. it has a bit smaller intake ports but also has smaller combustion chambers to up your compression a bit more.
Would that be the 4g93 or 4g37? We got the 93 in late ...

If you are working with a 1990 2 liter head you will find 52 to be the proper diameter. If you go to a head with smaller ports from a smaller or later engine then I would recommend smaller throttles.
The Audi throttles Bill has shown have no value in a ITB application since you need all the ...

Stayed N/A due to the weight of the vehicle and its intended use, it is a gravel rally car, and should weigh in at under 1000kg when the cage is completed, traditionally rwd turbo rally cars are pretty lairy beasts, and not necessarily the fastest, due to the nature of the torque curve produced ...

52 is probably going to be a little over throttled for the revs the motor will likely pull, as Bill has reiterated the critical thing to keep up is airspeed, the bigger the throttle the less 'urgency' the air has to get through the hole.

I have been thinking that toyota 20v throttles would be the ...

I think i can understand what you are saying, I will not be using ITB's until some fairly substantial cam and head work has been completed, probably an increase in static CR as well. I should point out that i intend (for the time being) to stay naturally aspirated. Also that the car is being built ...

The pics don't show it but i had to put an air bleed in the thermo housing off the block, because it heads down, i had some issues with air pockets and steam, boiled it whilst running up to temp and though i had cooked the gasket, luckily not, but put a new gasket in anyway, good chance to check out ...

Thanks, that means a lot coming from someone of your technical knowledge.

Some more shots showing the front end and neg camber, also my modified sump.
http://img360.imageshack.us/img360/5247/pict0009ek3.jpg
http://img181.imageshack.us/img181/7269/pict0010yq5.jpg
http://img155.imageshack.us ...

Hi all, this is my ongoing project, it's a 1982 lancer EX, originally a 1600 sohc carby automatic, i ditched that lump and dumped a high compression DOHC 4g63 from a 1990 VXS galant. It has Starion front struts and brakes, lengthened bottom arms for neg camber, 5 speed gearbox from a jap import ...