slow start with hi torque starter

[88911coupe]

Ok..it appears installing a hi torque stater (from our host) has solved my no start issue. However I have noticed that the car takes longer to fire up. Previously, before the last starter began to act up, the car fired up nearly instantly. Now it seems to turn over for 2-3 seconds, then fires up and runs perfectly. I did some searching and came across a couple of comments that others mentioned a similar issue with a HT starter. Is there something about the HT starter that would cause this? I'm fine with it taking a couple of seconds, just want to make sure there's not something else I need to be checking.
Thanks

[Jesse16]

I believe mine turns a bit slower vs the stock unit also, but it always works. At least my car starts reliably now.

[Nine17]

My '88 3.2 had the "high-torque" starter on it when I bought it. I began having no-start issues and a drained battery. Talked to the guys at JWE. Apparently the "high-torque" starter has heat-soak issues that lead to higher resistance in the cable from the battery. I went back to the OEM Bosch starter and the car starts on-the-button every time, hot or cold, and the battery doesn't drain trying to crank the engine. Unless you're running very high compression or are trying to pare every last ounce, my experience is that the Bosch is superior.

[JohnJL]

I believe you trade off starting speed for torque. I use one on the higj compression supercharged car with no problems, though it does crank around 200 rpm vs something like 350 rpm on the stock starter on a stock motor.

[88911coupe]

I went with the HT starter because, like several others found, the rebuilt Bosch units have become very unreliable. I took mine apart and found evidence is extreme rubbing of the "rotor" or whatever the part it called inside the windings. I suspect that maybe the HT starter, which I think turns a little slower, may take a little longer to trigger the DME relay to switch on the fuel flow. Just a guess.

[gtc]

My understanding is that the 3.2 flywheel has to spin around far enough for the reference senders to register before the engine will fire, thus the slower spinning HT starter leads to longer cranking times.
I had the same gripe after I installed one.

Originally Posted by JohnJL

I believe you trade off starting speed for torque. I use one on the higj compression supercharged car with no problems, though it does crank around 200 rpm vs something like 350 rpm on the stock starter on a stock motor.

[88911coupe]

Thanks for that confirmation Graham. I was a little concerned that maybe I was having excessive fuel pressure drop, but it seemed WAY too much of a coincidence that it started immediately after I put the new HT starter in. Also, it does the same thing whether its only been stopped for a few minutes or 2-3 days. Sounds like mystery solved! Time for me to worry about other things...