292 Fastech and trim-in limit spacers
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Ya down at Lk Mead. The speedo read 74mph at wot! Much better performance with the 28's. I'm just worried about the higher elevations. I'm going to have to buy a set of 24's for up here. Did you get the 26's back?
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Nickm, Did you reprogram the ECUs? If so where did you have them done?
I have seen an improvement with my manifolds too but without the ECU reprogram, I get a lot of transom soot so I know there is more there.
I have seen an improvement with my manifolds too but without the ECU reprogram, I get a lot of transom soot so I know there is more there.
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Originally Posted by NICKM
I purchased some imco manifolds and exhausts. They claim a 40 hp increase per motor. I don't know about that but it did make a BIG difference especially getting on plane. I also saw a 4 mph increase at wot. Pretty pricey upgrade but I'm not aware of any other upgrade that will still keep your warranty in effect and get that kind of bump in performance.-Nick
BTW, have you noticed how the trim in limit spacer is positioned on your rig, or made any changes? You may be able to improve planing even more!
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I'll get the details on the manifolds. They bolted right on. We did'nt have to move anything around to add them on. IMCO provided everything for the mods. They ran almost 5k for both sets. We did'nt do anything with the ecu's that I'm aware of but I'll ask my mechanic to make sure. Lake Mead is 500 ft in elevation Robert.
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I'll try to get some pictures of the manifolds. I'll tell you what, they look super nice in the engine bay. Huge improvement. Also, no interference with the bimini stoage. Everything still fits just fine.-Nick