Engine and parts help... mild road engine project

[Zach Gomulka]

Here's what I would do if I was you...

Instead of getting a c/w 69mm crank, spend the extra $130 and get a c/w 74mm for 1904cc. THAT will be good hp for your money! Use the 90.5 "A" pistons that you already have.

Get the XV290 from SLR. Use with your stock heads, stock rockers, and HD single springs.

Drive the thing!!!

A few years down the road when you're getting bored with the power (and you have more money to spend!), rebuild the top end with 94's (cut down to fit in your 90.5 case) and you'll have 2054cc. Get some proper ported 40.35.5 heads, 1.4:1 rockers, and a larger header.

Drive the thing, MUCH faster!!

[Nico86]

Here's what I would do if I was you...

Instead of getting a c/w 69mm crank, spend the extra $130 and get a c/w 74mm for 1904cc. THAT will be good hp for your money! Use the 90.5 "A" pistons that you already have.

Get the XV290 from SLR. Use with your stock heads, stock rockers, and HD single springs.

Drive the thing!!!

And with that :

- does the case need to be cleared for the 74mm crank?

- stock 311 rods are ok?

- 40IDF still ok?

- stock heads will need to be ported? Or it will be "fun" to drive even with just "cleaned" intakes?
Because I was thinking with the 1776 to give the heads to a machine shop for porting and machining for dual springs, but I could save this money for a 74mm crank, and do little work on the stock heads myself...

But most of all, will the 1904 be as reliable as the mild road 1776? I don't want to go with a bigger oil pump, bigger oil sump, additional oil cooler... I don't know if it would stick to the use I have of the engine...


On the other side it's interesting to have a slightly more powerful engine, that can get higher later...

[Zach Gomulka]

The case may need to be clearanced slightly, if so you can do it by hand.

Yes, the rods are plenty strong. But the rod caps need to be clearanced- this is where you do your clearancing when using a 74 crank. This can be done easily (carefully) on a belt sander. Balance them afterwards.

40idf's will be fine for both engines. If you want, you can upgrade easily, bigger venturies, or bigger IDF's

It will definitely be fun to drive, even with cleaned up intakes on the stock heads... stuff you can do yourself.

Engine size has little to do with reliability. Quality of the parts, and attention to detail during the build do.

[Nico86]

OK, work I can do by myself is important because in France machine shops are quite expensive. So I guess the 1904 "by myself" would be about the same price as the 1776, if can get the 74 crank from DPR at $280 + about $110 for shipping a 28 pounds package with USPS.

And with that I can use the same things that I've planned before for using it as a road engine : 26mm oil pump with full flow, doghouse oil cooler, 200mm clutch with 1700lbs Kennedy plate...??

I guess that with stock 35.5x32mm valves, 8.5 compression ratio, 40IDF, stock size exhaust 1"3/8 (maybe 1"1/2??), and an apropriate cam it would still be a good low/mid range powered engine...

I really need it to accept long drives on small/mountain/countryside roads.

[Zach Gomulka]

Yes to all of that

[Nico86]

Ok  Sounds tempting.

[fredy66]

<a href="http://www.youtube.com/v/JoqDYcCDOTg" target="_blank">http://www.youtube.com/v/JoqDYcCDOTg</a>

[Diederick/DVK]

 



 

[Nico86]

Haha!!

<a href="http://www.youtube.com/v/lmUZGdi7Ty4" target="_blank">http://www.youtube.com/v/lmUZGdi7Ty4</a>

[fredy66]

  funny

[qubek]

Even though my girlfriend tries to cheer me up saying that this is not always the case, deep inside I'm convinced that bigger is better 

[Nico86]

Does this mean I have to worry when my girlfriend is telling me that the most important thing is not the size, but the way it is used... 





 

[fredy66]

you may have a problem there 

[Nico86]

you may have a problem there 

 

[Nico86]

Using what I already have (except 69mm crank), and considering all the work done at home (except balancing the clutch) :

> 74mm c/w crank

> stock 311B rods

> SLR XV290 cam

> SLR Wiesmann lifters

> 1.1:1 rockers
Single Berg springs

> 040 heads 35.5x32 valves
8.5:1 CR

> Mahle 90,5mm A cylinder/pistons

> Dual oil relief magnesium case

> 40IDF carbs (maybe CB update kit then)
Berg manifolds
Stock fuel pump

> 26mm oil pump
Full flow
Doghouse oil cooler
Oil sump
Breathing box

> 009 distributor + blue coil

> 1"3/8 exhaust and heaters. Could go 1"1/2? But I have to have heaters.

> Kennedy 1700lbs pressure plate and Daikin 200mm clutch disc


Then later I could take all the time to get perfect heads with bigger valves, bigger carbs, ratio rockers... without starting a new engine from scrap...

[max2919]

STOP! When you order à crank, make sure that you gett à flywheel that is machined for the crank, it will save you €€€!. Use a HD bolt for it, Cb or Berg.

[Nico86]

STOP! When you order à crank, make sure that you gett à flywheel that is machined for the crank, it will save you €€€!. Use a HD bolt for it, Cb or Berg.

Yep, if I ever get a crank, it would come from DPR with the flywheel, both balanced. The biggest issue is to contact them, I sent them several e-mails but they never replied.

[fredy66]

tray brother may what to sell you some parts.

http://www.brothersvwmachineshop.com/parts.htm

[Nico86]

Thanks for the link fredy  I have Stef 'Bluestar' looking for a DPR one for me.

[Nico86]

Ok I'm decided to go with the 74x90.5 

After a few asking and searching, I'm thinking about Steve Long Racing cam and lifters.

> I have to choose between the XV280 or XV290 http://www.vwparts.net/SLRCAM.html , I've already had the info that an Engle W110 would stands in-between these two.

> Lifters will be regrounded and parkerized SLR Weismann http://www.vwparts.net/SLR24.html I will make shure that they are based on the original German parts and not the crappy brazilian stuff made by Mahle nowadays.

> Rockers will be 1.1 with single springs (duals?) since I will run stock heads for the moment.

[DKK Ted]

Nico, I would go with the XV280, since you going with single springs, the cam will have good low end, later you can go bigger with good mid and top end. Good choice Nico with SLR cam and lifters. This is a good start. I did talk to Jose today, finaly,  this is what he gave me as far as e-mail address, looks the same as his web-site, dpr7149797441@hotmail.com. Check it out.

Ted

[Nico86]

Nico, I would go with the XV280, since you going with single springs, the cam will have good low end, later you can go bigger with good mid and top end. Good choice Nico with SLR cam and lifters. This is a good start. I did talk to Jose today, finaly,  this is what he gave me as far as e-mail address, looks the same as his web-site, dpr7149797441@hotmail.com. Check it out.

Ted

Thanks Ted, yes it's the same email I have. I will see with Stefan to get one directly in France and save the shipping cost.

So with the XV280 and simple things : 1.1 rockers, single Berg springs, aluminium HD pushrods and properly set and balanced valve train. And with stock size Berg chrome valves.

I will see later (=in a couple of years I guess) for something sharper when the money will allow a pair of good ported 40x35.5 heads. When it will happen I could afford another cam if needed.
I have the opportunity in time, work and money to do this mild engine now. I've finished my studies in January (I was working at the same time during the last years of school, and I kept this job for the moment) and I don't know if the "futur life" would allow the same things. You never know what happens, so I have to do this nowand have fun!

[Nico86]

I finally picked-up a used weighing machine for cheap, perfectly working and precise this time.

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And my dad brought some of his stuff.

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[Zach Gomulka]

I'd stick with the VX290. You'll have more than enough displacement to give you a solid amount of torque down low. Then, when you make the top end upgrades, the cam will really come into its own, totally waking up the engine

[Nico86]

humhum sounds good if it gives the good low and mid range power I want And with this (and 1.1 rockers) I can still use single Berg HD springs and aluminium pushrods?

[Nico86]

I've had the confirmation that SLR Weismann lifters are made from the good German lifters. 

[DKK Ted]

Confirmation from who, Steve? Looking to buy lifters also.

Ted

[Nico86]

Confirmation from who, Steve? Looking to buy lifters also.

Ted

Got it from Ralph at Vee Dub Parts.

[Nico86]

Question : are all DPR crankshafts rectified to the first undersize on main and rod journals? (main=0.25mm and rod=0.25mm) I just want to know if I can order the engine bearings now, or if I'd better wait to have the crank, check it and then get the bearings.

[DKK Ted]

Nico, if your ordering directly from DPR, ask Jose and he'll tell you. also, if it's a 69mm crank, depending on the cores he's getting, it would be .010 under on main's and rod journals. if it's a stroker, .010 under on main's and STD on rods. But to be safe I would just wait till ya get the crank on hand. My 2 cents. 

Ted