2G 1997 ECLIPSE GST just bought

[HopeSon]

I just bought this 1997 eclipse gst I also own another 1999 eclipse gst but this 97 gst I just bought has some mods that I really don't know about as I didn't buy or have never installed them I'd like to know how they will improve my performance and how they improve the car I am going to post some pictures all the info given to me is very appreciated I'm here to learn thank you.

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[oneslowwdsm]

You need to change that intercooler piping so the 1g BOV recirculates back into the intake. Looks like a no name aftermarket radiator, an ebay exhaust manifold and either a 14b/16g/18g turbo. Possibly Ebay but I can't tell. HKS clear timing cover and looks like some adjustable cam gears. Looks like a 6 bolt (1st generation engine) swapped car since I see a CAS but could just be a 7 bolt with a 1g cas.

You need to ID the injectors and fuel pump and pull the ECU and check for EPROM/DSMlink chip. It may have been tuned. This is if the previous owner didn't tell you.

 

[HopeSon]

How do I make it recirculate into the intake? And what are the adjustable cam gears? Also what is a 1g cas. Thank you I'll check the fuel pump soon as well as the ECU. You don't think the turbo is a T25 right? Thanks

 

[oneslowwdsm]

Well you said you have a stock 99 right? Look at your engine bay where the intake pipe off the turbo meets the BOV. That's how your 97 should be. It will require different piping.

Adjustable cam gears allow you to adjust timing (retard/advance) based off a good dyno tune or DSMlink tune.

A 1st generation cam angle sensor is a sensor that replaces the crank sensor/cam sensor found in stock 2nd generation cars. It's a more reliable setup. http://members.shaw.ca/dsm.1000q/Engineprimer/1G/cas.htm

That's definitely not a T25.

Click around here and get yourself aquainted with everything inside the engine bay.
http://members.shaw.ca/dsm.1000q/Engineprimer/2G/visual-index.htm

 

[HopeSon]

Okay Sounds I see the cas it has a black cap on it. I will post a picture of my other 1999 2g eclipse it's not stock but doesn't have as much work as this one does it has an HKS BOV do you think it would perform better than the 1g BOV that this car has? Also do you know how much HP could this car be averaging just an estimate it's my daily driver it's been very good with me and I got it for a very low price and am looking to invest some quality upgrades in it if you could inform me on some worthy upgrades that I should do it would be great. Thank You very much

 

[oneslowwdsm]

that one is not correct either. It should look like this: http://members.shaw.ca/dsm.1000q/Engineprimer/2G/Q3.htm IMO the 1G bov is better.

As far as upgrades go, like I said before, first you need to ID your injectors/fuel pump/ECU/turbo. Secondly, you should do a compression test on that motor. This will not only determine the health of the motor but will also determine if the block is a 6 bolt (150-160 compression) or 7 bolt (170-180 compression). Mind you that this isn't concrete because you can have high compression pistons in a 6 bolt motor.

If that turbo is a legit 16g, with the right supporting mods and depending how much boost/fuel, you're looking at anywhere between 300-350WHP.

The first thing you should do is RESEARCH. Search and get a good feel of your goals/intentions with the car.

 

[oneslowwdsm]

Further, to ID the block you can look at the transmission mounting bolts. The front of the case should be missing a bolt if that is a 6 bolt block. There are other ways to ID as well like the oil pan and such but you have to search, I haven't done a swap in a while so I don't remember off the top of my head how to ID one easier.

 

[HopeSon]

Okay will do and do you know where I could get the piping to fix the 1g BOV and how would I do a compression test what's a healthy compression? Thanks

 

[Type1DSMr]

Looks like a 2g 7 bolt. You can tell by the 2g intake manifold and thermostat housing.

 

[HopeSon]

You think it's a 7 bolt with a 1g cas?

 

[HopeSon]

From what I'm reading you would have to change the ecu codes to have a 1g cas on a 2g 7 bolt block

 

[Type1DSMr]

Yup, google the difference in 1g and 2g thermostat housings as they can't be interchanged due to the flange difference. Also, recirculate your bov as mention, a long hose connecting to the bov and intake tube would work. Hook a line back up from the valve cover to intake tube as well.

I hope you got the car for a cheap deal like you said because it doesn't look like the po cared for his or her ride. Tons of ebay parts and just laziness with improper hose/vacuum line connects.

Another thing is that HKS timing cover is fake as well. HKS never made timing covers only a knock off Chinese company did.

 

[HopeSon]

I will recirculate the BOV also do you recommend changing the eBay parts or do you think they will get the job done for some time? And what parts do you recommend changing/upgrading in order of priority. Thank You

 

[Type1DSMr]

You need to ID the injectors and fuel pump and pull the ECU and check for EPROM/DSMlink chip. It may have been tuned. This is if the previous owner didn't tell you.

This and compression test should be first. Then go over all maintenance and inspect turbo to verify which one you have. Pull the intake tube off and take a pic of the cover.

 

[HopeSon]

Ok will do thank you

 

[oneslowwdsm]

Looks like a 2g 7 bolt. You can tell by the 2g intake manifold and thermostat housing.

Yes but could be a 7bolt head/6 bolt block. I forgot about the thermostat differences and intake manifold tho, good call

 

[Type1DSMr]

Yes but could be a 7bolt head/6 bolt block. I forgot about the thermostat differences and intake manifold tho, good call

That's a good point as well. Gotta check that oil pan, flywheel bolts, or 2g trans on a 6 bolt block missing bolt mounting point. Either way google the differences and check out the images and compare them to yours.

 

[HopeSon]

So far I think it's a 6 bolt block and 7 bolt head because the block doesn't have a space where on my 7 bolt block eclipse you would put the cam shaft sensor here are the photos showing what I mean the first one is a 7 bolt block the second is a 6 bolt block with a different cas sensor

 

[oneslowwdsm]

We already determined you have a 7bolt head with a 1g CAS. Next would be to figure out if you have a 7 bolt block or 6 bolt block.

 

[HopeSon]

Yeah but would a 1g cas fit a 7 bolt block?

 

[oneslowwdsm]

Yeah but would a 1g cas fit a 7 bolt block?

Yes.

 

[HopeSon]

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That's interesting here is a video of the engine you can see it better I hope you guys can find out if it's a 6 or 7 bolt thanks for all the info

 

[oneslowwdsm]

Well you have stock cam gears. Strong sounding motor though, I still can't tell if it's a 6 bolt though. The bolt that should be missing should be either U or V on top of the slave cylinder. I don't remember which but all you have to do is look. If it's missing then it's a 6 bolt.

 

[Type1DSMr]

The video only shows us what we already told you. It has a 7 bolt head. Have you looked at the turbo or injectors yet or even the ecu?

Here's a thread with enough information to help you with determining which block you have.
http://www.dsmtuners.com/threads/6-...7bolt-6-bolt-7-bolt-six-bolt-seven-bolt.4626/

Here is a good thread on the transmission bolt pattern difference on the 6 bolt and 7 bolt.
http://www.dsmtuners.com/threads/1gb-7bolt-vs-2g-7-bolt-engine.396298/

 

[HopeSon]

I'm not going to be home till a week I'm out of state visiting some family in NC but it's not missing any bolts on the transmission so I suppose it's a 7 bolt and thanks I thought the engine sounded strong too I bought it like a week ago for $780 and I had some family members to visit so I just want to inform myself as much as possible so when I make it back I can get straight to work also order parts so they can be there once I make it