itzgoten Posted October 2, 2011 Author Share Posted October 2, 2011 If your car overheated or 5 or 6 laps in, your cooling issue is either something stupid, or your head gasket is going out. The distance between the radiator and an sr20 in s30 chasis is incredibly helpful for lower temps Speaking of which, I think I almost overheated at the track as well. The car hit 200deg at the track. The track has some close corners and I was at 6-8k RPM for the last part of the track often. I read that the water pump cavitation happens after 7k RPM. The water pump isn't efficent any higher and since I took the car all the way up to 8.5k that might have been the reason why. Now that I know this I'm only going to use 7-8.5k as a trump card and not beat it up as much. Another option is to get the Stance ST6 oversize water pump pulley but that would mean that I would not be able to drive the car day to day in traffic. That would make the water pump spin too slow and cause it to over heat. With that said it wasn't a viable option. This car gets driven often as I love to drive it as much as possible. I was thinking maybe a 4-row Champion radiator with a 140deg thermostat being a good combo. Who knows.. We'll see when the car is back on the road. Quote Link to comment Share on other sites More sharing options...
BLOZ UP Posted October 2, 2011 Share Posted October 2, 2011 Is 200 degrees hot for the SR? Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 2, 2011 Share Posted October 2, 2011 (edited) Look into some radiators on summit and jegs I used a griffin as wide and as tall as I could between the z rails. I did square tube my radatior support though. Here is another option maybe you would like to "test" out http://www.summitracing.com/parts/MEZ-WPK510/?rtype=10 Edited October 2, 2011 by mr jdm Quote Link to comment Share on other sites More sharing options...
Tibby Posted October 2, 2011 Share Posted October 2, 2011 Did you ever think about using an electric water pump. If the pulley is limiting your RPM range why not just remove it from the equation. Here is one from summit I'm just throwing it out there. I know nothing about the SR20. Yet. Quote Link to comment Share on other sites More sharing options...
itzgoten Posted October 3, 2011 Author Share Posted October 3, 2011 Look into some radiators on summit and jegs I used a griffin as wide and as tall as I could between the z rails. I did square tube my radatior support though. Here is another option maybe you would like to "test" out http://www.summitracing.com/parts/MEZ-WPK510/?rtype=10 mr jdm, I am using a s13 sr20 radiator and it's very tall and I boxed my subframe as well. This whole time I assumed the Koyo was a 3row but I found out it was only a 2 row. I just want to find something just as tall and wide but more rows of cooling. I like what you did for the radiator support though. I might just copy it. Did you ever think about using an electric water pump. If the pulley is limiting your RPM range why not just remove it from the equation. Here is one from summit I'm just throwing it out there. I know nothing about the SR20. Yet. I have considered this but I wasn't exactly sure how reliable it is going to be for daily use. My tuner said that it would UNLIKELY to fail but if it did I would be SOL. So for now I'm going to run the OEM water pump to see how it goes. If it doesn't work. I'll smash the impellers and get the electrical water pump (which attaches to the lower radiator hose). Quote Link to comment Share on other sites More sharing options...
itzgoten Posted October 3, 2011 Author Share Posted October 3, 2011 Is 200 degrees hot for the SR? My Z never went over 180 even when I tracked it at Buttonwillow. When it went a little over 200 I flipped out. I figured 250 would be overheating but I just want to make sure it never gets there. Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 3, 2011 Share Posted October 3, 2011 200 is getting hot The fans on a stock sr20 turn on at about 212 Just a few ideas if your trying to take care of the pump more than the radiator. You can always run an electic water pump inline with the mechanical water pump. Leave the electric off on the street, on the track flip the switch. If you go full electric, crazy would be to put a pump on each radiator hose Quote Link to comment Share on other sites More sharing options...
itzgoten Posted November 22, 2011 Author Share Posted November 22, 2011 Hey Guys, I know it has been awhile. A lot of stuff going on here on my end. Family member passed away and then my tuners wife's dad passed in the same month so we're putting the car on hold for a lot longer than we initially anticipated. But I did have a question.. maybe someone here has some experience with parts coating... I was going to use this downtime to send out my rods and pistons to get coated by Swain Tech. I was thinking about going the gold coat on top of the pistons and the PC-9 coat on the piston skits. I was also thinking about having the rods coated with their "oil shedding" agent. My main concern is that I've already had the block sent out to get bored and honed. If I get the skirts coated it'll add about .0008 to each side.. so it'll add .0016 total. I THINK I can have a difference of about .0010-.0014 difference with my pistons. Anyone know if it's standard to have the block re-honed or if it's OK to slap the pistons in there as is? Logic is telling me to get the honed another .0010 so that I can be within tolerance of the .001-.0014.. Please.. If I could have someone who's familiar with the process elaborate.. Also I would like to add that I called Swain and they said to contact the manufacturer of the pistons.. I called Brian Crower (where I purchased my pistons) and he said I should call Swain but told me the tolerances (which I forgot.. but I think it was the .001-.0014 as I mentioned). Lastly the pistons are CP Pistons.. 86.5mm (9:1 compression) and I bored the block .5mm over to accommodate. I know they're all set now but after I coat it'll be a different story.. HELP!? Quote Link to comment Share on other sites More sharing options...
itzgoten Posted November 23, 2011 Author Share Posted November 23, 2011 Well after quite a bit of research I've decided to go in slightly a different route. I'm going to gold coat the top of the pistons and possibly oil shed the rods.. but I'm going to get the piston skits, pins, rings, bearings, oil pump gear and rocker arms micro shot peened at WPC Treatment which will significantly reduce friction. A bit more expensive but I'd say it's worth the money. Quote Link to comment Share on other sites More sharing options...
Ghettopoptart Posted February 7, 2012 Share Posted February 7, 2012 Itzgoten, After sitting here for 2 hours reading your thread up to 9 pages. You have built a magnificent car, props to you, and please keep up the pictures, its nice to be able to see someones work. Quote Link to comment Share on other sites More sharing options...
itzgoten Posted February 7, 2012 Author Share Posted February 7, 2012 Itzgoten, After sitting here for 2 hours reading your thread up to 9 pages. You have built a magnificent car, props to you, and please keep up the pictures, its nice to be able to see someones work. Thanks for the props man.. the car REALLY slowed down. I got into some other hobbies and it's taking up most of my time and interest. BUT, the project isn't over. I sent the block out last week to get line honed. I had to use different main caps that wasn't from the original block. Also ordered some ARP main studs, new Apexi 1.1m headgasket and a mishimoto racing thermostat. Should be a few more weeks will the car is back together again. I'm hoping mid-March at the latest. I want to make the MSA show this year so lets hope that it'll happen. And my Buddy got this decal for my rear view mirror. I love it! hahaha! And before anyone asks, no I'm not African.. my other friend is from Ghana and it was a souvenier that became my cars "g-meter".. hehe Quote Link to comment Share on other sites More sharing options...
itzgoten Posted April 14, 2012 Author Share Posted April 14, 2012 Jesus it has been forever. The block ended up going to the machine shop because they didn't line hone the main journals properly. We got the block back the beginning of this week and the proper bearings just arrived today. Hopefully the block will be assembeled this weekend and I can have her up and running soon. Aside from the motor work I've been wanting to get a APR GTC-200 wing for quite some time. I plan on using this at the track only. Kinda like Mark Rolston and his RB Z. It's a long time coming but I ended up getting the wing. Here some pictures of the mock up and what the spoiler looks like. I got it for a steal and I'm completely satisfied. Now I just need to look for another hatch to mount this wing on. Nothing fancy with the spare hatch. I was thinking about maybe reinforcing the underside/inside of where the spoiler is going to be mounted to. The hatch feels kinda flimsy and I'm not sure if it will be stable enough with the wing pushing down on it. I was also thinking about using plexiglass or some other material instead of glass. Any how.. here's the wing! Quote Link to comment Share on other sites More sharing options...
Gollum Posted April 14, 2012 Share Posted April 14, 2012 Meh, that wing isn't so awesome looking. You should throw it in the trash in Vacaville at the downtown public library located on Kendel St, say around 3am tonight.... Glad to see an update. Keep them rollin'. Quote Link to comment Share on other sites More sharing options...
Mike-Z Posted April 15, 2012 Share Posted April 15, 2012 How do you feel about using the AZC brake kit on a daily driver? Wondering since a lot of what I've read has people saying it isn't a good idea for a daily driven car Quote Link to comment Share on other sites More sharing options...
itzgoten Posted April 15, 2012 Author Share Posted April 15, 2012 How do you feel about using the AZC brake kit on a daily driver? Wondering since a lot of what I've read has people saying it isn't a good idea for a daily driven car Mike, I'm not sure what the fuss is all about. They are crazy.. or maybe it is me that is crazy. I have no problem with the braking power and it is great daily. But then again, I don't mind crawling out of the car because of the roll cage, sitting in a fixed bucket seat daily and having no radio. So I guess I'm just rough around the edges. But all kidding aside, the brakes work fine daily and with a (somewhat) gentle foot breaking is fine without any issues. I haven't ever once thought to myself "damn, these brakes are just too much". In fact I would have went 6 pot if anything. Gotta brake as good as you accelerate right? Well.. just my honest opinion. I would just get the AZC brakes, you'll adjust if you drive it often enough. Quote Link to comment Share on other sites More sharing options...
itzgoten Posted April 15, 2012 Author Share Posted April 15, 2012 So I spent the day at my Tuner's house and he finished building the bottom while we were out BBQing. It nice see things coming together again and FINALLY picking up. I took a bunch of pictures of the motor being put together in stages. Nothing too crazy but in case anyone was interested in the general process. Only if pistons could stay this nice forever my pistons on the table before the rings got measured and cut This was the block as I got it back from the machine shop. We took off the girdle to get the oil squirters, bearings, crank in. Oil squirter installed bearings are in crank put in main caps are on. girdle put back on and torqued down all the rings were put on and checked And in they go! The rod bolts were checked and torqued.. Look a SR20 STi!! FINALLY! I hope to have everything back together in a few weeks. We have some other projects at the shop but once that is done we're going to focus on the Z to get her back on the road again. Quote Link to comment Share on other sites More sharing options...
robbs70z Posted April 16, 2012 Share Posted April 16, 2012 Can't wait to see her back on the road. This time make sure she is fully tuned before you beat on her at the track. Lol Quote Link to comment Share on other sites More sharing options...
itzgoten Posted April 16, 2012 Author Share Posted April 16, 2012 Can't wait to see her back on the road. This time make sure she is fully tuned before you beat on her at the track. Lol I'll fill you when I see you at the track to explain what happened. She was tuned but my lack of experience and bad luck made things the way they were. This time around I came in knowing more. I'll be doing the NCRC track day on June 30th if you can make it out there will Bill. Would be nice to officially meet! Quote Link to comment Share on other sites More sharing options...
robbs70z Posted April 16, 2012 Share Posted April 16, 2012 I will try to make it out then. My car won't be ready till august poss September. But would love to go for a ride Quote Link to comment Share on other sites More sharing options...
itzgoten Posted April 16, 2012 Author Share Posted April 16, 2012 We're working with NCRC to rent out an entire run group. My buddy decided to have a track day as his bachelor party. I will have to give other people rides already unless I get in on another run group. Bill needs to clear me for Open group anyway so that might be a possibility. We'll see when the time gets closer. Would you have another car drive or maybe even Bill's car if he goes? And if you could tell Bill also. Would be nice to meet up with him again. Quote Link to comment Share on other sites More sharing options...
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