Rolling road day in Bletchley / Milton keynes
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Never tried, but going on what i have read, Its an issue. Ideally they want to do the run with a 1:1 ratio, which is typically 3rd on a GM box.ChrisJC wrote:What happens if you've got an automatic transmission?
Chris.
The problem is when you floor it, it will change back down to 2nd. So only thing i can think of, is to do the run on mine with it held in 2nd. I cant remember how fast mine goes in 2nd - i think about 75mph.
If i ever get my 4l80e installed, because its electronic - i can hold it in any gear regardless of anything - known as dyno mode. But that project is on the back burner at the moment, because my 700r4 is holding up to the abuse.
Mine is a 3 speed auto with a shifter kit. So I can select 1st 2nd or 3rd in manual mode and it wont upshift or kickdown.
Dont know what gear he was in last year when he did mine the first time.
I think it must have been 2nd. I suppose if you did it in 3rd you could disconnect the kickdown cable and vac modulator.
Dont know what gear he was in last year when he did mine the first time.
I think it must have been 2nd. I suppose if you did it in 3rd you could disconnect the kickdown cable and vac modulator.
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
That's not a bad idea, shoud work with the ZF too. I think 3rd is 1:1 (although of course I would need to account for the transfer box too). In fact 4th would be better as there's a torque converter lockup.mgbv8 wrote: I suppose if you did it in 3rd you could disconnect the kickdown cable and vac modulator.
Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Bletchley / Milton Keynes Rolling road day 2008.
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
Feel free to copy and paste your names on to the list with the next number chaps.
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
Feel free to copy and paste your names on to the list with the next number chaps.
Regards Tony C (COOPS)
MS2 V3.57 Ecu mapable efi and wasted spark ignition.
Procharger D1SC supercharger and Cossie RS500 Intercooler @ 14psi of Boost. 416 RWHP, (boost leak)
Forged 4.8 V8 kitted out with the dogs Cajones of parts.
Sponsored by: www.v8performanceparts.co.uk, www.interpart.biz, www.caprisport.com & www.baileyperformance.co.uk
MS2 V3.57 Ecu mapable efi and wasted spark ignition.
Procharger D1SC supercharger and Cossie RS500 Intercooler @ 14psi of Boost. 416 RWHP, (boost leak)
Forged 4.8 V8 kitted out with the dogs Cajones of parts.
Sponsored by: www.v8performanceparts.co.uk, www.interpart.biz, www.caprisport.com & www.baileyperformance.co.uk
-
- Forum Contributor
- Posts: 2419
- Joined: Sat Nov 18, 2006 1:59 pm
- Location: Far Far south, any further south and my feet are wet
On a TH350/400 the Vac modulator only controls line pressure and hence shift firmness. Removing the kickdown still wouldn't stop it changing down if it felt it needed to.mgbv8 wrote:Mine is a 3 speed auto with a shifter kit. So I can select 1st 2nd or 3rd in manual mode and it wont upshift or kickdown.
Dont know what gear he was in last year when he did mine the first time.
I think it must have been 2nd. I suppose if you did it in 3rd you could disconnect the kickdown cable and vac modulator.
Besides mines a 700r4 and doesn't have either of those devices. I'm still up for having a try none the less.
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
- Ian Anderson
- Forum Contributor
- Posts: 2396
- Joined: Sun Nov 19, 2006 9:46 pm
- Location: Edinburgh
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
Owner of an "On the Road" GT40 Replica by DAX powered by 3.9Hotwre Efi, worked over by DJ Motors. EFi Working but still does some kangaroo at low revs (Damn the speed limits) In to paint shop 18/03/08.
Whayhay!!!
This is looking like it could be a fun day out chaps??
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
Eliot
If I disconnect the modulator and kickdown cable on mine it will not kickdown at all. But my car is very light I suppose @ 1050kg all up with me and a tank full.
I had to fit the uprated TH350 adjustable modualtor to mine just to get it to upshift later in auto. Even now it upshifts way too early for quick fun so I shift it via the ratchet for road fun.
This is looking like it could be a fun day out chaps??
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
Eliot
If I disconnect the modulator and kickdown cable on mine it will not kickdown at all. But my car is very light I suppose @ 1050kg all up with me and a tank full.
I had to fit the uprated TH350 adjustable modualtor to mine just to get it to upshift later in auto. Even now it upshifts way too early for quick fun so I shift it via the ratchet for road fun.
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
1. Perry Stephenson MGB V8
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
10. Dave Tetlow MGB V8
That is if its Aug or later and if it gets back from the states in one piece.
2. Tony Cooper Capri RV8
3. David Lush Capri RV8 (dependant on day)
4. Stuart Harrison Capri RV8 (if the thing ever starts! lol)
5. Reg D Capri V8
6. CSR Camaro Z28 or Chevy S10 truck.
7. Chris Cowdery - Landie or Sherpa V8. (dependent on day)
8. Eliot - Dakar 4x4 assuming it will fit
9. Ian Anderson GT40 RV8 JE Worked (Dependant on Day)
10. Dave Tetlow MGB V8
That is if its Aug or later and if it gets back from the states in one piece.
1973 MGBGT
1975 MGB V8
I thought I could see the light at the end of the tunnel but it turns out it was a train comming!!
1975 MGB V8
I thought I could see the light at the end of the tunnel but it turns out it was a train comming!!