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Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Tue Jun 27, 2017 2:42 pm
by pebbles
Ralph wrote:My U20 had a valve seat dislodge and next week I should have the Roadster back on the road. Two questions: 1) is there a suggested RPM max and mileage period schedule to retorque the head? 2) to be safe as I bomb around, where is my reasonable redline once the break-in period is done? SU carbs, stock everything inside the engine
For inquiring minds I was VERY fortunate in that the only damage was the seat falling out...and yes, I am having all 8 seats replaced, and no, I don't know the history of the engine
1) Is there a retorque requirement?
2) check out some engine specs and dyno sheets. Max torque is around 4000 rpm. After 4400 its just making noise. I have been accused many times of short shifting.......
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Tue Jun 27, 2017 3:32 pm
by GeoffM
pebbles wrote:I've been accused many times of short shifting.......
....
Nope....too easy....
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Tue Jun 27, 2017 8:25 pm
by Ralph
pebbles wrote:
1) Is there a retorque requirement?
My mechanic Joe says no retorque will be required ... any other thoughts? (Upgraded to ARP stud kit)
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Tue Jun 27, 2017 11:36 pm
by pebbles
GeoffM wrote:pebbles wrote:I've been accused many times of short shifting.......
....
Nope....too easy....
Ralph wrote:
My mechanic Joe says no retorque will be required ... any other thoughts? (Upgraded to ARP stud kit)
keep and eye on temps with an accurate gauge.
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Wed Jun 28, 2017 9:01 am
by Ralph
pebbles wrote:
keep and eye on temps with an accurate gauge.
Will do. New temp sensor is in and up till then I have been checking with a laser gun thermometer. The temperature has been within normal range.
Thanks!
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Wed Jun 28, 2017 12:54 pm
by Gregs672000
4400 rpms! This ain't no '60s era V8! Redline is 7000, you're more than safe at 6000.
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Wed Jun 28, 2017 3:44 pm
by pebbles
Gregs672000 wrote:4400 rpms! This ain't no '60s era V8! Redline is 7000, you're more than safe at 6000.
Ok Ok 5200
Lets see your dyno sheet
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Sun Jul 02, 2017 6:41 pm
by Lorna c
spl310 wrote:Yes, Ralph. Contrary to some opinions, you don't have to bump redline every time
say what ? ! yes you do ... and I know how to solve the roll bar issue , I need one , so ...... just give it to me and problem solved ! .. my next 100$ is getting one bent for mine ..
"have welder now ,,will make anything" !
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Sun Jul 02, 2017 10:52 pm
by mraitch
@lornac
make sure that you include the provision for a 'serious' plate under the body. the 'standard' holes have minimal strength - you need minimum 1/2 inch bolts to hold the roll bar in, otherwise it is mostly decorative and will rip out of the car in anything minorly serious.
Same, frankly with the seat bolts, they have little structural integrity as they are installed.
The miata bolts are 1/2 inch, the roadster bolts are way less than that.
If you are concerned with safety - consider these points.
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Mon Jul 03, 2017 11:00 am
by spags1986
Went to bolt my 5 speed transmission up and noticed the holes on the mount do not line up with the cross member.
My question is do I have the wrong cross member piece or do I have the wrong Transmission mount? Are all the cross members the same (4spd vs 5sp)? I know there is a difference just don't remember if its the mount or the cross member.
***I got this car in boxes and piecing it back together.
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Mon Jul 03, 2017 12:57 pm
by mraitch
post a picture of mount and cross member
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Mon Jul 03, 2017 1:17 pm
by Gregs672000
pebbles wrote:Gregs672000 wrote:4400 rpms! This ain't no '60s era V8! Redline is 7000, you're more than safe at 6000.
Ok Ok 5200
Lets see your dyno sheet
Waiting on the Isky cam and to confirm it is not coil binding, then a run on the ol dyno will be posted!
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Mon Jul 03, 2017 3:47 pm
by notoptoy
spags1986 wrote:Went to bolt my 5 speed transmission up and noticed the holes on the mount do not line up with the cross member.
My question is do I have the wrong cross member piece or do I have the wrong Transmission mount? Are all the cross members the same (4spd vs 5sp)? I know there is a difference just don't remember if its the mount or the cross member.
***I got this car in boxes and piecing it back together.
The crossmembers are definitely different, I believe the mounts are the same though.
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Mon Jul 03, 2017 7:41 pm
by msampsel
Is there a good thread on carpet installation?
Things like keeping track of the holes for console, heater box and control box etc.
I guess poking an awl up the holes and carving out a little carpet after glued makes some sense. Just looking to learn from others where possible
Re: The Quick/Small/(Stupid?) Question Thread.
Posted: Tue Jul 04, 2017 5:48 am
by cktrap
msampsel wrote:
I guess poking an awl up the holes and carving out a little carpet after glued makes some sense.
I've have been using finish nails. I crawled underneath with a hand full, seemed to work just fine.