Use ARP bolts in the rods, with NO locktabs.. Check rods for straightness (they are seldom straight).
Check big end bores for size and roundness.
I wouldn't bother lightening the rods for a road car.
| ausmini https://ausmini.com/forums/ |
|
| 1100 Build up https://ausmini.com/forums/viewtopic.php?f=5&t=75900 |
Page 1 of 2 |
| Author: | Giantinamini [ Sat Mar 10, 2012 7:15 pm ] |
| Post subject: | 1100 Build up |
Gathering parts for an 1100 build and am after some advice. I have +.060" Pistons, a 12G295 head, a 12G202 head, a 1 1/4" SU, 42 DCOE Weber. I'm wanting a bit of a tough streeter, in no ways a race motor. Just after your thoughts on best combinations and any mods that need to be done to them,as they are all stock. Also a recommendation on cam... |
|
| Author: | Kennomini [ Sat Mar 10, 2012 7:52 pm ] |
| Post subject: | |
Think about balancing and lightening the crank and the flywheel. |
|
| Author: | Giantinamini [ Sat Mar 10, 2012 8:02 pm ] |
| Post subject: | |
is it worth doing the rods aswell? |
|
| Author: | Kennomini [ Sat Mar 10, 2012 8:17 pm ] |
| Post subject: | |
Generally just make sure their straight, I guess you could make sure the rods and pistons are all the same weight if your keen but I don't think it's necessary to try and lighten them. |
|
| Author: | drmini in aust [ Sat Mar 10, 2012 8:28 pm ] |
| Post subject: | |
Use ARP bolts in the rods, with NO locktabs.. Check rods for straightness (they are seldom straight). Check big end bores for size and roundness. I wouldn't bother lightening the rods for a road car.
|
|
| Author: | Giantinamini [ Sat Mar 10, 2012 8:41 pm ] |
| Post subject: | |
what are your thoughts on the best head and carby to use from what ive got? |
|
| Author: | drmini in aust [ Sat Mar 10, 2012 8:51 pm ] |
| Post subject: | |
I'd use the 295 head as you have one, it's way better than a stock 202. 1-1/4 SU won't feed it properly though, I'd go the 42DCOE. If you want an SU buy a bigger one (HS6 or HIF44) and a Minispares manifold. You need another cam too, the stock one sucks for getting HP. |
|
| Author: | Giantinamini [ Sat Mar 10, 2012 8:57 pm ] |
| Post subject: | |
Cheers, was thinking an RE13 would that suit? Also how much needs to be shaved off the head? |
|
| Author: | Kennomini [ Sat Mar 10, 2012 10:30 pm ] |
| Post subject: | |
The RE13 is popular and should work rather well. Try and search for Kent cams and see what they have for your engine. The head and block should be decked to make sure they are flat. I would only shave the head after you've checked the cc's of both the combustion chamber in the head and the volume in the cylinder and then run all the calculations to get your desired compression ratio, then if it's needed shave the head to suit. |
|
| Author: | Giantinamini [ Sun Mar 11, 2012 5:06 pm ] |
| Post subject: | |
Is it recommended to do any work to the head? Match the exhaust ports to the extractors? Port inlets? Valves? |
|
| Author: | Wombat [ Sun Mar 11, 2012 5:46 pm ] |
| Post subject: | |
I have rebuilt an 1100 - what I have done. Lightened and balanced the fly wheel,crank,rods straightened and balanced. 295 head with unleaded inserts, larger exhaust valves, new double springs and guides. I spent a lot of time and effort cleaning out the water jacket - took the welsh plugs out and with wire coat hangers, screw drivers, bottle brushes and air and pressure hose cleaned out a heap of casting sand and other crap. bored and fitted 100 thou oversized flat top pistons, RE13 cam new cam followers, double timing chain, new water pump, new oil pump, new cam bearings, (all new bearings everywhere) modified Pulsar electronic dizzy, Fitted twin HS2 carbies, Maniflow 3 into 1 extractors and RC40 exhaust system. Oil releif valve mod. Gear box has been rebuilt and turned into a Magic Wand change - centre oil pick up fitted - Whole lot built to the optimum tolerances and clearances. Lots of other things done but can't remember it all |
|
| Author: | Giantinamini [ Sun Mar 11, 2012 6:13 pm ] |
| Post subject: | |
Nd it makes sufficient power i presume? That'd have to be gettin towards 100 HP? Thats my plan, take the time to do it properly |
|
| Author: | adamstuart [ Sun Mar 11, 2012 6:16 pm ] |
| Post subject: | |
Giantinamini wrote: Nd it makes sufficient power i presume? That'd have to be gettin towards 100 HP? Thats my plan, take the time to do it properly
Maybe closer to 60 or so.. |
|
| Author: | Bubbacluby [ Sun Mar 11, 2012 6:41 pm ] |
| Post subject: | |
I would recommend a kent266. Brother had one in his 1100 and went very very well. he had a 295 head with a lightened flywheel. So would recommend getting your flywheel lightened. And use your weber, should go very well |
|
| Author: | xplosion77 [ Sun Mar 11, 2012 7:24 pm ] |
| Post subject: | |
how much have would you spend on getting the crank and fly wheel lightened and ballanced? |
|
| Page 1 of 2 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|