Looking at getting 1g GSX Options

[lawngsx]

If it has flip up headlights it means it's a 90-91 and therefore a 6-bolt. No need to check the oil pan.

[AWD DSM 1]

The car has flip up headlights and when I get the chance I will check the oil pan. Thats the kind of info I was looking for so thank you very much Natedogg for helping out. From talking to the original engine builder this car may need the lower end rebuilt. So Im thinking about replacing the crank and bearings. Can you balance these cranks? Also I am waiting on a price from KOU on the crank and bearing prices. This doesnt need to be replaced other than we know how long and hard its been driven.

I know you can have the rotating assembly balanced (assuming you can do just the crank also) and/or have the crank knife edged, but unless you're going balls-to-the-wall it's really not necessary. What makes you think the crank needs replaced? Stock motors can usually take a LOT of abuse...

[SCCA Stang]

If it has flip up headlights it means it's a 90-91 and therefore a 6-bolt. No need to check the oil pan.

this is correct unless the stock motor blew up and a 7-bolt was swapped in, I would check everything, the other thing is that I heard some infor once that if a 7 bolt was going to walk it would happen with-in 100,000 miles... if it has 100K and is still fine, it looks like you have a good one....

crank walk is caused more because of the oil squirters than the crank itself (so I've been told)

[natedogg]

Ehhhh...every 7-bolt is just as prone to crankwalk as the next one because they are all based on the same flawed design. Its a combination of mileage, time, and abuse that finally does one in.

Best crank walk article I've ever found.
http://www.magnusmotorsports.com/crankwalktheory.htm

I also agree with AWD DSM 1. The 6-bolt crank is the strongest piece in the engine, forged and hardened. Unless a bearing has been spun on it in a bad way, it shouldn't need to be replaced. If you feel the need to strengthen the engine, start with some forged pistons. If you think you'll be making more than 450-500 hp at some point go ahead and put strong rods in as well. The stock 6-bolt rods will stand up to alot of hp.

[Temp_Me96]

Actually I do believe it already has the forged pistons in it. But im not 100% sure. I will be looking into that. I am getting all the receipts on the car here soon so I can go ver them and see what has or hasnt been done. This car at one time was very fast / quick in its day. I was just thinking with the abuse the motor has had that freshening the bottom end couldnt hurt. Since it would all basically come why not have it balanced.

Info so far to my knowledge:

4g63 built
20g w/external wastegate
3" Exhaust
Bigger Fuel Line w/two pumps
FMIC
HKS BOV
HKS VPR
HKS P F-con
Boost, Oil temp, fuel pressure, EGT and A/F gauges

Im sure there is more. Im more interested in the internals.

[Justincredible]

20g w/external wastegate
Bigger Fuel Line w/two pumps
HKS BOV
HKS VPR
HKS P F-con

ok. questions?

why larger fuel lines and two pumps for a 20g? that should support much larger.
(not bashing just curious if someone downsized it on purpose. i.e. ran piss out of car with larger turbo.)


hks bov? why?
same goes with a P f-con.

and wtf. is a
hks VPR

[Temp_Me96]

Im sorry not a VPR its a Vein Pressure Convertor by HKS. Like I said Im not 100% on the turbo Im thinking its a 20g fron speaking with KOU and from what I can tell. This car has gone through many different setups so Im not sure on why they have what looks to be bigger fuel lines and two pumps other than possibly getting ready at one time to go bigger. Most of this build up is old school so keep that in mind.
Im not understanding what your asking on why the BOV and why the Pf-con? Why wouldnt you? Maybe this all goes back to old school or maybe its bigger than a 20g. I wont know until I get the ride and rip it apart. I will try to get pictures of the turbo and more here soon.