Will the Cannon intake fit into a GT without cutting the heater core box? So if I understand this correctly, (probly not but here goes) I should be looking for a cannon intake and a set of 40 dcoe's to really get the best bang for my buck out of a 1.9l?RallyBob said:Another point: The short Irmscher manifolds flow decently, and they make installation of sidedrafts in a GT a lot easier. However, the nature of a short-runner manifold is increased top end power with a loss of bottom end power. I've done back-to-back comparisons with Cannon (long intakes) and the short Irmschers, and the difference was dramatic. The long runner intakes had better torque than a single carb, better mid-range, and a bit better top end, while the Irmschers were slower than a single carb from 0-30 mph and from 0-60 mph were only 2/10's faster. They only really shone when testing 0-100 and top speed, that was dramatic. On my test 2.0 litre engine...... with short Irmscher intakes, 40 DCOES with 30 chokes, the top speed rose 17 mph compared to a ported (not welded) stock intake and a 38 DGAS.
Is there anyway to recove some of the torque lost, or is it a moot point? I have the short Irmschers, twin 40 DCOES with 30 chokes, cam is (430" lift, 268 duration), solid lifters and roller rockers. Engine is stock 70 model with High Comp pistons. Mild porting will be done as per RallyBobs porting of 1.9 head post here on the board. Thanks, JarrellGTJIM said:The Short Irmschers are the only ones that fit in the GT engine bay with just minor "bashing" with a ball pene hammer - except, may be the short DeBlis ones.
The Long Irmschers, Cannons and Manglotesi are longer and require the removal of the heater box. Better torque requires the sacrifice of the heater box. :ugh: