rzimmerl
Registered User
Well after many trials and time thinking its getting very close. Here are some notes going thru all this
1. The 2.1 is a direct swap depending on what size 1.7 you have I came to find out. They had a long case and short case 1.7, with the newer ones being shorter. The 2.1 is also taller so I am hoping to just cut the center hood support rib out to fit this under a stock early model hood. If not I have a primered Cobra R hood in the basement to slap on. I also had to remove the dipstick and put one a left over plug I had on the 1.7 when I added the catch can so I'll have to remove the blower to check the oil at least once a year.
2. Pulley turned out to be a pain due to the 19mm offset difference in the 1.7 to the 2.1 and the fact the 2.1 uses the big 12mm bolt. So I inquired about the Thump Racing modular pulley kit and when I got it I thought it wasn't going to work. So I called up Dave and got a pulley he used for the 2.0 kits and this should work out perfect. I just need to have a lip machined on the pulley to align into the drive sealing ring. Still attempting to use the modular pulley kit which will need modified yet, but using the 2.0 pulley at this time.
3. Got everything dry fit in the car last night and need to clearance the tstat housing of the intake manifold about 0.060 to 0.100 to move the blower forward to clear the pulley on the A frame support when I machine the lip on the pulley. I also had to change 4 of the intake manifold bolts from hex heads to button heads to make clearance for the blower. Fuel rails and everything else is fitting just fine just like the 1.7.
4. Bypass valve needed to slightly modified from the 1.7 kit so I got a new one coming this week finally. Plan is to just run silicone hose to connect it to the intake instead of the rigid tube it had welded to it.
5. The 1.7 blower is already sold, and will be part of another SC kit sometime.
Right now i'll be running a 3.5" blower pulley with 5% jackshaft and see how much more boost it makes. I can't wait to hear this thing fire up as just rotating the blowers by hand this thing should whine like crazzy. Love the sound of blower whine
to be continued.......
1. The 2.1 is a direct swap depending on what size 1.7 you have I came to find out. They had a long case and short case 1.7, with the newer ones being shorter. The 2.1 is also taller so I am hoping to just cut the center hood support rib out to fit this under a stock early model hood. If not I have a primered Cobra R hood in the basement to slap on. I also had to remove the dipstick and put one a left over plug I had on the 1.7 when I added the catch can so I'll have to remove the blower to check the oil at least once a year.
2. Pulley turned out to be a pain due to the 19mm offset difference in the 1.7 to the 2.1 and the fact the 2.1 uses the big 12mm bolt. So I inquired about the Thump Racing modular pulley kit and when I got it I thought it wasn't going to work. So I called up Dave and got a pulley he used for the 2.0 kits and this should work out perfect. I just need to have a lip machined on the pulley to align into the drive sealing ring. Still attempting to use the modular pulley kit which will need modified yet, but using the 2.0 pulley at this time.
3. Got everything dry fit in the car last night and need to clearance the tstat housing of the intake manifold about 0.060 to 0.100 to move the blower forward to clear the pulley on the A frame support when I machine the lip on the pulley. I also had to change 4 of the intake manifold bolts from hex heads to button heads to make clearance for the blower. Fuel rails and everything else is fitting just fine just like the 1.7.
4. Bypass valve needed to slightly modified from the 1.7 kit so I got a new one coming this week finally. Plan is to just run silicone hose to connect it to the intake instead of the rigid tube it had welded to it.
5. The 1.7 blower is already sold, and will be part of another SC kit sometime.
Right now i'll be running a 3.5" blower pulley with 5% jackshaft and see how much more boost it makes. I can't wait to hear this thing fire up as just rotating the blowers by hand this thing should whine like crazzy. Love the sound of blower whine
to be continued.......