I just installed my h22 plenum and tb and double stacked iab yesterday and it was fairly easy install with only a few minor problems. I am writing this so future tuners can be prepared and install this with ease.
Bolts: youll need 3 bolts at 8-1.25 by 90mm. These are the two against the firewall and the front middle ( your ac compressor bolts will work for these three if youve done an ac delete) the front corners you need a little longer at 8-1.25 100mm (remember this is for double stacking the iabs)
Coolant hoses: since your double stacking your iabs your iacv sits about an inch and a half higher and a little more away from the thermostat housing and egr so its a stretch to make these coolant lines reach. Also the fitv sits under the tb instead of the front driverside of the f22 plenum. So go out and buy about 5 or 6 ft (just be be sure you have enough) of 5/16 hose from your local autostore to replace the hoses coming from the egr and thermostat housing. The last thing you want it stress on those pressurized coolant hoses.
Throttle adjustment mount: im not sure if you have this problem with the h22 mount but i used the one off my f22. When i mounted it i noticed the throttle was almost fully open so i adjusted it all the way and it was still slightly open. So i fired her up and she was revving a little under three grand. I shut her off and took the mount completly off. I had to move the holes over about a half inch to the mount sit closer to the tb. I used a drill press with a quarter inch metal bit and the holes were marked 1 3/8 of and inch center to center. Drilled em and mounted em and got the idle perfect.
These are the only problems i encountered while installing this upgrade. It can be different for everyone depending on where you get the parts and what condition theyre in. I hope this helps someone out there and saves them a headache.
Bolts: youll need 3 bolts at 8-1.25 by 90mm. These are the two against the firewall and the front middle ( your ac compressor bolts will work for these three if youve done an ac delete) the front corners you need a little longer at 8-1.25 100mm (remember this is for double stacking the iabs)
Coolant hoses: since your double stacking your iabs your iacv sits about an inch and a half higher and a little more away from the thermostat housing and egr so its a stretch to make these coolant lines reach. Also the fitv sits under the tb instead of the front driverside of the f22 plenum. So go out and buy about 5 or 6 ft (just be be sure you have enough) of 5/16 hose from your local autostore to replace the hoses coming from the egr and thermostat housing. The last thing you want it stress on those pressurized coolant hoses.
Throttle adjustment mount: im not sure if you have this problem with the h22 mount but i used the one off my f22. When i mounted it i noticed the throttle was almost fully open so i adjusted it all the way and it was still slightly open. So i fired her up and she was revving a little under three grand. I shut her off and took the mount completly off. I had to move the holes over about a half inch to the mount sit closer to the tb. I used a drill press with a quarter inch metal bit and the holes were marked 1 3/8 of and inch center to center. Drilled em and mounted em and got the idle perfect.
These are the only problems i encountered while installing this upgrade. It can be different for everyone depending on where you get the parts and what condition theyre in. I hope this helps someone out there and saves them a headache.
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