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have you considered using AN fittings for the radiator lines? i think they would go very well with your build.. the fitting on the top side of the rad can be changed to a 90 degree AN fitting easily.aklackner wrote: ↑Fri Oct 04, 2019 6:56 pm So very little done in this update, and mostly backward progress. I’d been excited to try the Koyo crossflow radiator not only for promise of improved cooling from a dual pass setup but for the mounting offered for slimline (universal) fans. I was hoping to move away from oem shrouds to provide a bit more clearance to get headers in and out as well as eliminate contact between the shroud and AC compressor fitting. It’s been an unfortunately uphill battle and after trying to fit an aftermarket coolant reservoir and then dropping in the air box to find the below I’m calling it a bridge too far. I’ll trim the OEM shroud to address the compressor contact or if clearance remains an issue I’ll directly mount the slimline fans to the prior (still 36mm core) koyo radiator with the god awful plastic push in mounts. If anyone is interested in the crossflow radiator or a chase bays coolant reservoir let me know.
The only actual semi productive thing I got done was getting the pedal hardware all finally in place as well as the under dash fusebox.
I’m not opposed to it but it wouldn’t solve the issues with Koyo crossflow which is mostly theres just not enough space in the front right corner. You’re competing with the headlight, (fan) relay and bracket, AC condenser line and even the sides of the radiator cap became an issue. It was that tight. I was just working to hard to make it work. I’m pretty convinced the only way to actually fit it all is the OEM funky shaped reservoir and radiator supply neck placement. At a minimum I think you’d have to lose the air box, not sure a CAI would fit so a short ram is what you need to fit. My air box is modified with a snorkel/cold air feed I ant to try to keep this to keep intake temps as low as possible. There’s also the possibility that the dual pass could limit flow of the system and fail to deliver additional cooling.DC231 wrote: have you considered using AN fittings for the radiator lines? i think they would go very well with your build.. the fitting on the top side of the rad can be changed to a 90 degree AN fitting easily.
if you go with the AN fittings you can have the rad cap relocated to the neck off the cylinder head with this(https://www.speedfactoryracing.net/spee ... -fill-neck) or something similar i believe others are available.. you would not even use the filler neck on the rad anymore it would be gone after adding the AN fitting directly to the rad.aklackner wrote: ↑Sat Oct 05, 2019 10:34 amI’m not opposed to it but it wouldn’t solve the issues with Koyo crossflow which is mostly theres just not enough space in the front right corner. You’re competing with the headlight, (fan) relay and bracket, AC condenser line and even the sides of the radiator cap became an issue. It was that tight. I was just working to hard to make it work. I’m pretty convinced the only way to actually fit it all is the OEM funky shaped reservoir and radiator supply neck placement. At a minimum I think you’d have to lose the air box, not sure a CAI would fit so a short ram is what you need to fit. My air box is modified with a snorkel/cold air feed I ant to try to keep this to keep intake temps as low as possible. There’s also the possibility that the dual pass could limit flow of the system and fail to deliver additional cooling.DC231 wrote: have you considered using AN fittings for the radiator lines? i think they would go very well with your build.. the fitting on the top side of the rad can be changed to a 90 degree AN fitting easily.
If I end up having cooling issues with the single pass Koyo I’ll look into options to improve. Most probably with a custom IM cooler system. The only concern is really the JRCS (possibly w/ stepper pulley for ~8psi) but with Methanol injection, upgraded (still 36mm alum.) Koyo radiator, and vented hood I highly doubt it will present an issue. I’ll also have knock detection from the ecu (odb1 p72 w/ s300v3) for failsafe.