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converter for boost

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Old 03-12-2008, 08:22 AM
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Default converter for boost

i'm looking for a converter for my turbo setup, i have a art carr 3200 but i think its blowing through the converter. i have 4.10 gears and a turbo 350 trans so my mph is limited but when i'm at 75% throttle my mph is around 90 to 100 mph when it hits the rev limiter in drive, and when i'm at 50% throttle my mph is around 105 to 115 when it hits rev in drive, so basically when boost comes in i'm hitting the rev limiter really fast. I'm thinking about sending this one back and having them tighten it up, what does everybody think? i'm around 800-1000hp in a 3500 lb car, or does everybody think i'm just out of gear
Old 03-12-2008, 09:10 AM
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i think if it is new you need to return it, obviously its either not built right or you didnt give them the right information to build it right.

hard to say you are out of gear or not w/out listing tire diameter and max rpm.
Old 03-12-2008, 09:22 AM
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we were tuning it on street tires and they are 245/60-15's and rev is set at 7000
Old 03-12-2008, 01:09 PM
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my top mph before in the 1000 foot with 4.10's was 115 bouncing off the rev with those street tires, and with the 27 inch slicks it was 119 and was not on the rev.

this was before the turbo setup
Old 03-12-2008, 11:35 PM
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Sounds like you would run out of gear real fast. My NC converter is close to stock stall and around 3200-3400 on the T-brake, I'm will be about the same HP, around 1000+, and same weight. I would have the TC checked out.

Dan
Old 03-13-2008, 09:57 AM
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You are out of gear for sure unless you take that bad boy to 8500 or something. When I had my old 4.10's in my car when it had the blower (now turbo) car would hit like 137mph on the dyno, with the 3.50's it was hitting 162mph.
Old 03-13-2008, 10:08 AM
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Originally Posted by stroked_408
i'm looking for a converter for my turbo setup, i have a art carr 3200 but i think its blowing through the converter. i have 4.10 gears and a turbo 350 trans so my mph is limited but when i'm at 75% throttle my mph is around 90 to 100 mph when it hits the rev limiter in drive, and when i'm at 50% throttle my mph is around 105 to 115 when it hits rev in drive, so basically when boost comes in i'm hitting the rev limiter really fast. I'm thinking about sending this one back and having them tighten it up, what does everybody think? i'm around 800-1000hp in a 3500 lb car, or does everybody think i'm just out of gear
I agree with PSJ, What size tire are you running?
Old 03-13-2008, 10:10 AM
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Originally Posted by Pro Stock John
You are out of gear for sure unless you take that bad boy to 8500 or something. When I had my old 4.10's in my car when it had the blower (now turbo) car would hit like 137mph on the dyno, with the 3.50's it was hitting 162mph.
+1 nice set up those gears prob made it fly in the 1/4??? Are those your times in your sig and if so is it a street car or a strict race only car?

Last edited by mattraypharbor; 03-13-2008 at 10:17 AM.
Old 03-13-2008, 10:15 AM
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I couldn't make a full pass in the 1/4 with 4.10's, I was trapping 144 at the time.
Old 03-13-2008, 10:51 AM
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but my mph changed depending on how much i was in it, i dont think spinning would slow down the mph, would it? i'm going to try it with 27 inch slicks and see if i can make it work in the 1/8th or 1000 ft.
Old 03-13-2008, 12:52 PM
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What have you run in the 1/8 or 1/4 so far?
Old 03-13-2008, 01:07 PM
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i haven't ran the car with the new setup yet, besides on street tires when tuning it
Old 03-13-2008, 03:30 PM
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408ci
A3
4.11
Turbo setup?
Boost level?
Power level?

I think we are missing some info.
Old 03-13-2008, 03:45 PM
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Neal Chance
Old 03-14-2008, 06:12 AM
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Originally Posted by Pro Stock John
408ci
A3
4.11
Turbo setup?
Boost level?
Power level?

I think we are missing some info.
twin 70's
10 -20 on boost
800 - 1000hp
Old 03-14-2008, 08:45 AM
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LOL twin 70mm turbos?

You know you can't run 4.11's with that setup silly rabbit, maybe if you ran 33" tires.

Probably 3.50's with 28" tires.
Old 03-14-2008, 08:59 AM
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we only run 1000 ft. here, and i actually think we are fixing to go to 1/8th
Old 03-14-2008, 09:02 AM
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Brady is an expert on 1/8 racing, you should PM him or Madman. But even so, say you run 15 psi, you could be at 800-900rwhp and on 28's 4.11's would still be too much gear. I'd say 3.70/3.73 at the most.
Old 03-14-2008, 09:05 AM
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ok, thanks for the replies



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