4g61t.org

what is your outside temps there? I would almost guarantee its the rad... on the first page for this build I see its only the 2" rad.. this is to small of a rad for a turbo car.. I keep telling people this but they do it anyways..then complain it over heats... if you want to run a honda half size rad u need the thicker 3 core one... but then you run into the same issue of no room... best rad to use is the vw sciraco one tucked inside the pocket there.. it is more than large enough to cool and when tucked in also gives the clearance for a larger turbo..




Steve

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Steve 89 colt 2.3 stroker stock top end. evo3@20 psi 13.489@99.30mph 3/10 2012
On drag radials.auto trans.launching @ 5 psi and no traction thru 2nd.

Thanks Steve.
The temperatures when I was doing all this was above 85F for sure. I assume 88F to 93F.

I did order a 88 VW Scirocco 1.8L radiator yesterday. I will have a 12in slim pull fan and 10in slim push fan. I am going to have to put my water to air intercooler heat exchanger in the rear of the car. I figured I would mount two 9in fans that push around 1200cfm to 1400cfm. So the exact location will be where the old stock muffler would sit. My heat exchanger is W 22" x H 10.5" x D 1.75" 3/4inlet and outlet. I am running the 5/8in water line from the tank, to pump, to intercooler, to heat exchanger, and back to the tank. I have the tank trunk mounted. I want to make a sheet metal scoop for the exchanger. I figured I could pull air from under the car up and through the heat exchanger. I am running it his way so that I am not super heating my pump.

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92 Colt GT 4G63t
92 Summit TSI AWD 4G63t Auto
92 Eagle Talon TSI AWD Auto DRag CaR
5 X 90 Talon TSI
90 GSX
99 GSX..........31 Dodge 4dr Rat Rod, 67 Catalina, 92 3kgt vr4, 83 Civic,4 00 F-350, 01 Chevy 2500HD
3 KIDS, FUTURE FIANCE, AND CAR ADDICTION

yeah those thinner half size rads just dont hold enough water to cool a turbo motor(no matter how many fans u have on it) lol.... i sure hope this works for you.. keep us updated.



Steve

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Steve 89 colt 2.3 stroker stock top end. evo3@20 psi 13.489@99.30mph 3/10 2012
On drag radials.auto trans.launching @ 5 psi and no traction thru 2nd.

I agree, not sure how some people get by with the civic radiator but it simply didn't cool enough for me either. I swapped it out for an early 90's Audi A100 radiator that I grabbed at the junkyard and it cooled perfectly after that.

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93 Mitsubishi Expo LRV 1.8/manual
95 Eagle Summit DL Coupe 1.5/manual
01 Mitsubishi Mirage ES Sedan 1.8/manual

Well, next time I do something stupid tell me I am doing something stupid lol
Oh and a DSM is not a Honda???? lol

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92 Colt GT 4G63t
92 Summit TSI AWD 4G63t Auto
92 Eagle Talon TSI AWD Auto DRag CaR
5 X 90 Talon TSI
90 GSX
99 GSX..........31 Dodge 4dr Rat Rod, 67 Catalina, 92 3kgt vr4, 83 Civic,4 00 F-350, 01 Chevy 2500HD
3 KIDS, FUTURE FIANCE, AND CAR ADDICTION

lol but people think a csm is a honda.. specially race track announcers.



Steve

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Steve 89 colt 2.3 stroker stock top end. evo3@20 psi 13.489@99.30mph 3/10 2012
On drag radials.auto trans.launching @ 5 psi and no traction thru 2nd.

Seems quite a few on here run the 1/2 size civic radiator with no issues. I just couldn't get it to work for me. I figured it was because it gets a million degrees here in NC during the summer.

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93 Mitsubishi Expo LRV 1.8/manual
95 Eagle Summit DL Coupe 1.5/manual
01 Mitsubishi Mirage ES Sedan 1.8/manual

My buddy was running a 1/2 sized mishimoto radiator on his evo with no issues, his car also went 9's and was street driven.

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92 Colt GL 4g63t + AWD swap
00 Mirage LS

Aaron, you will here Monday if I having to have the fwd tsi asap. I have a long weekend planned and prepping today on last minute things.

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92 Colt GT 4G63t
92 Summit TSI AWD 4G63t Auto
92 Eagle Talon TSI AWD Auto DRag CaR
5 X 90 Talon TSI
90 GSX
99 GSX..........31 Dodge 4dr Rat Rod, 67 Catalina, 92 3kgt vr4, 83 Civic,4 00 F-350, 01 Chevy 2500HD
3 KIDS, FUTURE FIANCE, AND CAR ADDICTION

yeah but the front end of an evo, has exceptional clear space which allows for all that air flow. It is complete shit on a csm, especially with a big ass FMIC in the way.

my summit, is horrible after a pass ( 230s ) cruising around and free way driving I am seeing about 190. However if I am in traffic, it starts to escalate into the 220s.

I think it might be time for me to move to a scirroco radiator.
w

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Warren
91 Eagle Summit AWD 10.14@138.31 (6.56 @110.30 1/8th, 1.48 60') 1.40 best 60 ft - best mph 154
03 EVO 10.86 @ 134.73 best mph 139.00
90 GST 10.36 @ 142.49 best mph 147.10

Where were you reading those temperatures? I ask cause on a stock dsm on a hot day with v3 and fan always on (switch installed), I read the engine temp as 225-230F on the ecu. The dash temp read perfect and we even checked the wires. I know the thermostat is 180F and new.

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92 Colt GT 4G63t
92 Summit TSI AWD 4G63t Auto
92 Eagle Talon TSI AWD Auto DRag CaR
5 X 90 Talon TSI
90 GSX
99 GSX..........31 Dodge 4dr Rat Rod, 67 Catalina, 92 3kgt vr4, 83 Civic,4 00 F-350, 01 Chevy 2500HD
3 KIDS, FUTURE FIANCE, AND CAR ADDICTION

I run aftermarket gauges in the car, so the values I am giving you are read in the thermostat housing.

My radiator is not very effective, it fits inbetween the upper and lower frame supports, with a pretty large singular fan on the car.

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Warren
91 Eagle Summit AWD 10.14@138.31 (6.56 @110.30 1/8th, 1.48 60') 1.40 best 60 ft - best mph 154
03 EVO 10.86 @ 134.73 best mph 139.00
90 GST 10.36 @ 142.49 best mph 147.10

It wont start moving up until the car is actually over heating 230*+

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89 Mirage Billet 20g 63t 12.4@120 417whp 400wtq @ English Racing.
89 Colt GT E316g
06 Silverado SS
07 ZX6R

I am going to run the heat exchanger under the rear of the car. I did mock up this weekend (rained all weekend). Where the stock muffler sat sideways is where the heat exchange will sit. I am going to use the hole/cap that is in the trunk to run the water lines through. I have 2 9in fans that I will run to help cool the heat exchanger. Anyone suggestion on whether to run the fans as a pull or push and do I force the air up towards the bottom of the car or down towards the ground? Please explain thought process.

I need to pull a lot of fuel out, but the car ran pretty good considering it was running 10afr lol I thought v2 would get me a good running tune Edit: (seeing how the car has a evo8 maf and 550cc evo injectors. I changed my global fuel and the maf to a 2g with the evo setting, but apparently I need to do a lot more playing with it). I didn't have time and as you are about to read I didn't have a thermostat to allow the car to get above 180F until my last drive around the neighborhood.

So I got some temperature reading this past weekend + last weekend on the colt and on my buddies stock 1g.
Here is what I found:
On a 90F day (happens for like 2 weeks here in the Midwest a year) the stock 1g got up to 225F. This was after running around town and letting the car idle for like 5 min. Keep in mind, he only has the stock radiator fan and no ac fan. The fan is set on a switch that he leaves on when driving around. Read at the ECU
On a 75F day the stock 1g got up to 210F and sat there all day doing the same process. Read at the ECU

My colt with the dual core honda radiator would climb above 230 with NO THERMOSTAT if I gave it a chance on a 90F day when at idle and both the 10in and 9in fan running. Read at the ECU and on gauge with the sensor next to the ecu sensor.
On 70F day with the 88 scirocco 1.8L radiator with a 10in pull and 9in push on opposite sides with NO THERMOSTAT I drove the car for 10min and heat soaked the engine. I got the car to run at 180F. I flick the radiator fans switch off and the temperatures went up to 200F and I hit the switch for the fans and the temperature went down to 193F after 2mins. I am happy with the scirocco radiator. the one I got would have been nicer if it was not as wide by an 1inch.

What radiator hose are people using for the scirocco radiator? I am mainly concern with the lower radiator hose as my shift lever arm is hitting the hose currently when in 2nd, 4th and R.???????

In other news, I am working up a game plan for MOD. I was hoping to take more toys and even the colt, but we will see.
Also, who would have thought on 195/55/r14 with 25% tread that I would spin 1 wheel at 3psi lol. The female got a good laugh from it but was very please by the pull it gave at 7psi. She followed it by asking, "Is this why we need ......um ....drag tires. lol She was trying to think of drag radial.

EDIT: Sept 22 I ran the car at idle for like 20min trying to lean the fuel out and to see with the new 180F thermostat if the car would overheat. I have good news the car doesn't overheat, but was on a mid 70F day. Bad news is the afr are not responding to the adjustments like I would think. Can I tune the car without a o2 signal back to the ecu? I have a lc-1 wideband but not having it simulate the narrow back to the ecu. I assume not and the ecu just dumps fuel??? I will get some readings tomorrow when I work on the car.

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92 Colt GT 4G63t
92 Summit TSI AWD 4G63t Auto
92 Eagle Talon TSI AWD Auto DRag CaR
5 X 90 Talon TSI
90 GSX
99 GSX..........31 Dodge 4dr Rat Rod, 67 Catalina, 92 3kgt vr4, 83 Civic,4 00 F-350, 01 Chevy 2500HD
3 KIDS, FUTURE FIANCE, AND CAR ADDICTION

Fans are more efficient as pull. Straight blade is more efficient than curved but louder which won't matter in the rear. I would run it as being pulled down to the ground. I use a universal type hose, ribbed style, it does touch when shifting, in the mean time I have a heat wrap around the lower hose to keep the rubber from rubbing off on the shift arms, temporary bandaid.

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89 Mirage Billet 20g 63t 12.4@120 417whp 400wtq @ English Racing.
89 Colt GT E316g
06 Silverado SS
07 ZX6R