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$700.00 claimer motor

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arrowhead

10+ Year Contributor
920
60
Apr 19, 2011
miami, Florida
Hi guys, here is the deal.
Our local club is starting a CLAIMER class basically the rules will be , in the 4 cyl class max 2.5L
This is to give a chance for people that want to start getting involved in road racing with a modest investment.
W e would like to prepare a motor for this class, we have 2 options, a 63 and a 64, no turbo will be allowed.
The $700.00 will apply to the long block only.
So what combo on mostly aftermarket replacement parts would you guys recommend, since forge internals are mostly out.
Comp combinations seem to be at the top of the list.
Any input would be appreciated.

Thanks
 
what is the track like?

if it doesn't have many long straights then go with a high compression sohc 4g64.
 
what is the track like?

if it doesn't have many long straights then go with a high compression sohc 4g64.

It will be at Homestead and maybe close to you.

Will you expand on the combo?

The machine work alone for the block and head will cost you over $700.

The idea is to keep it as low budget as possible, of course there will be Hondas, Toyotas and Mazdas involved.

The $700.00 is an initial amount they are talking about .
 
It will be at Homestead and maybe close to you.

Will you expand on the combo?

Honestly dont know how it will be accomplished with 700

I know the crank is good for 6-700+ hp so its ok to leave alone, the rods are the same as the 7-bolt rods so there good as well, even the pistons would be fine for the hp/tq a n/a is gonna put out but a wimpy 9.5:1 compression ratio you will have to upgrade.

I would choose the SOHC over a DOHC setup simply for the low end power it supports, It may be more cost effective to go DOHC simply because cams are cheaper versus the 5-600$ cam for the single.

You could even contact Delta for a cheaper option on a custom cam for the sohc, even that will take a large chunk out of the 700$ budget.

Is nitrous allowed? LOL
 
Let me explain a bit more the 700 is not a limit on how much you could spend but it is what your motor could be claimed for by another competitor.

I think replacement parts aftermarket are cheap enough to be safe, the reasons you point out make give our motors a small advantage,

NPR, nippon racing, and others sell them cheap enough to take the chance, remember they will not be balls out motors but basically stock rebuilds or non rebuild.

The different combos is where the advantages will be, so that is the info we are after.

Nitrous really does not have a place in road racing.
 
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I would find a 6-bolt 2.4 (can be hard to find), put new rings and bearings in it, and put a DOHC 4g63 head on it. If you are not allowed to run good enough fuel, then run a 7-bolt 2.4 for less compression.

Any fuel is allowed, no nitrous or methanol, but any type of race gas or ethanol is OK.

On the contrary MORE compression is what we are after.
 
Have read of using a 64 sohc and using the dohc, with those same pistons would give around 12 to 1 comp, is this what you are referring to?

Any combo ideas for the 63 motor to increase that comp.
 
You could put the 1.6 head on off the 4g61t, can't remember the compression increase off-hand but it was pretty significant.
 
The machine work alone for the block and head will cost you over $700.

Where the hell are you getting your machine work done? The place I go charges it 25$ per head surfaced, 25$ for inline blocks, and 65$ for V blocks. They charge 8$ a cylinder for a hone, and 15$ a cylinder for a bore. Port work is 30$ an hour and cleaning (hot tank etc) is cheap as chips. I had them do a short block (4g63) with my parts for less than 200$ and a long block with my parts for 325$.
 
Those are good prices, here they are a little higher, and remember the idea behind this class is mostly opening doors to new people in the sport by keeping the investment low.

The other brands that would compete will also be forced to keep the investment low and still have fairly stock motors.
 
The 1.6/1.8 head will give you about 1/2 a point of compression, up to you if it's worth it for that small of an increase. Maybe putting pistons in from the old 8-valve engine would get you an increase similar to the 8-valve 2.4, but I'm not sure.

That is exactly the combo I am trying to find out for the 2.0, if you have any info please let me know.

Thanks

To make it more clear.
What piston, turbo or non turbo, would give me the highest comp. for the 2g-2.0 engine.

Thanks
 
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