A few miles with the sprint booster
Thread Starter
Member
Joined: Nov 2006
Posts: 117
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From: Iowa
98 C43, 86 Porsche 951, 98 Volvo S70 T5M
A few miles with the sprint booster
After wasting a few days (and lots of gas) driving around with the Sprint Booster I'll have to say I'm impressed. What was a very fast, but kind of tame car has turned into a wild beast. After I got over the initial jump of going from a 2.3L turbo engine to a V8 the C43 just seemed lacking. It was still blazing fast when spun up, especially at 60+ under full throttle, but the around town performance seemed to not be crisp after warmup.
Not so anymore. The sprint booster makes 1/4 throttle pretty much the same as 3/4 or more. You have to really feather the gas now to avoid giving yourself whiplash. Another poster's comment of feeling like it added 100 hp isn't far off. Part throttle acceleration is waaaaay up. Of course gas mileage is down as well. Though now that the throttle is so touchy I actually drive slower so not to seem like I'm always burning rubber. Something that you can do with ease with one of these guys in.
All in all I'm very happy with it. Time will tell on how I like it in the future, but for now it rocks.
p.s. As a side note i'm wondering if some of our 0-60 problem is gear related. Not that mid to high fives is bad, but for how hard this car pulls in 3rd gear it should pull a mid to low 5. I've noticed that once the car shifts into 3rd gear around 60 something it turns into a rocket and just sucks you back into the seat. I'd like to have that in 2nd gear too.
Not so anymore. The sprint booster makes 1/4 throttle pretty much the same as 3/4 or more. You have to really feather the gas now to avoid giving yourself whiplash. Another poster's comment of feeling like it added 100 hp isn't far off. Part throttle acceleration is waaaaay up. Of course gas mileage is down as well. Though now that the throttle is so touchy I actually drive slower so not to seem like I'm always burning rubber. Something that you can do with ease with one of these guys in.
All in all I'm very happy with it. Time will tell on how I like it in the future, but for now it rocks.
p.s. As a side note i'm wondering if some of our 0-60 problem is gear related. Not that mid to high fives is bad, but for how hard this car pulls in 3rd gear it should pull a mid to low 5. I've noticed that once the car shifts into 3rd gear around 60 something it turns into a rocket and just sucks you back into the seat. I'd like to have that in 2nd gear too.
MBWorld Fanatic!
Joined: Apr 2006
Posts: 1,101
Likes: 40
From: Bay Area, CA
98 C43, 15 Alfa 4C LE, 18 Tesla Model 3 DM Perf, 08 Duc S1000, 02 Duc 998, 98 Duc 748, 01 Miata
This is definitely up on the top of my list for first things to do to this car. I find that the 1-2 shift takes forever. I'm wondering if the transmission control unit can be reprogrammed for quicker shifts. I look forward to seeing whether you still feel the same way in a month or two. I saw one person complaining that eventually the ECU compensated for the sprint booster and he was back to normal.
Newbie
Joined: Jul 2007
Posts: 17
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From: the Evergreen State!!!
'99 C230K2.3
call me clueless...i posted here in the c class inquiring of upgradez 4 my little train that couln't (C230K)...didnt get alot of E 4 effort, anyway all the upz i can find available r way outrageously priced 4 what u get (20-25 pony)...not fam w/ the sprintbooster, how is it done (what & where), how much, and do ya think its available for the little super 4?...thanx in advance!...
keep on keepin' on...
keep on keepin' on...
Last edited by kalicocat; Jul 14, 2007 at 04:19 PM.
Thread Starter
Member
Joined: Nov 2006
Posts: 117
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From: Iowa
98 C43, 86 Porsche 951, 98 Volvo S70 T5M
I can't really say with any cerntainty. Got about 260 out of the last tank with the sprint booster in. Got 220 the tank before with the bad 02 sensor. I'll let you know after the next tank. Lack of trip computer means I actually have to calculate things out now.
kalicocat - You can use the search function and find a million sprint booster threads. It adds no power, but makes your car shift lots harder and quicker. Best $200-300 i've spent so far.
kalicocat - You can use the search function and find a million sprint booster threads. It adds no power, but makes your car shift lots harder and quicker. Best $200-300 i've spent so far.
Last edited by DarthCY; Jul 16, 2007 at 10:12 PM.
Super Member
Joined: Feb 2006
Posts: 674
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From: USA
1999 C43
Wow, I am getting 350 miles a tank.
I can't really say with any cerntainty. Got about 260 out of the last tank with the sprint booster in. Got 220 the tank before with the bad 02 sensor. I'll let you know after the next tank. Lack of trip computer means I actually have to calculate things out now.
kalicocat - You can use the search function and find a million sprint booster threads. It adds no power, but makes your car shift lots harder and quicker. Best $200-300 i've spent so far.
kalicocat - You can use the search function and find a million sprint booster threads. It adds no power, but makes your car shift lots harder and quicker. Best $200-300 i've spent so far.
