High-altitude pulley for NS Supercharger

[JettaRed]

Guess what? I installed the high-altitude pulley and all I can say is wahoo! It's like the first time all over again! The car really kicks you in the seat of the pants now. I can't get over how much difference less than a quarter inch makes!
I convinced Neuspeed to let me try it out to put to rest all the theories and hypotheses. I'm taking VAG-COM measurements on timing advance and knock sensing to see if I have any detonation that the ECU can't handle. So far, absolutely no pinging.
Let me say that this may not be for everyone. For one, it's been 30 degrees here and premium on the east coast is 93 octane minimum. When the weather gets warmer, I may run into "issues". But for now, I'm loving it!
(For those who want to know, the high-altitude pulley is 2.6" in diameter and the standard pulley is 2.8".)


For first-timers to this thread, the following topics are discussed:1. Smaller pulleys--2.6, 2.5, & 2.4 and the resulting boost.
2. The effects of heat and boost on timing retard.
3. Colder spark plugs.
4. Bigger injectors (and un-metered air to compensate for the additional fuel). (p. 6)
5. Neuspeed does a head P&P (p. 12)
6. Water injection to cool the charge and reduce detonation/timing retard. (p. 14 and 20)
7. Gauges--boost and a/f. (p. 22)
8. Rising Rate FPR. (p. 38)
9. Supercharger maintenance. (p. 38)
10. The effects of plain water vs. methanol based windshield washer fluid with water injection. (p. 40)
11. FAQs on page 42.
12. Using a 268/260 cam. (p. 52)
13. Idle adjustment for using cam. (p. 53).
14. Turn2 Lightened Crank Pulley. (p. 63)
15. Bill (JettaRed) Bends His Valves (Pulled Head). (p. 61)
16. Adjustable Timing Gear. (p. 67)
17. Joe gets serious about an Intercooler for the charger (link to Joe's thread). (p. 72)
18. Getting a strut bar to fit. (pp. 73-74)
19. 15 psi! (p. 75)
20. Denso Iridium IK-24 sparkplugs are NOT too cold. (p. 76)
21. JettaRed gets GTI Black . (p. 81)
22. The difference between OBDI and OBDII concerning fueling. (p. 99)
23. Supercharger 2nd oil change using GM Supercharger Oil. (p. 100)
24. Bill tries a grounding kit to improve performance and reduce misfires. (p. 106)
25. Will (MicrobiologyNerd) finally gets his intercooler in and earns bragging rights for the first air/air IC. (p. 107)
26. The Demise of JettaRed the Car. (p. 109)
27. Four-thousand Posts!!! (p. 115)
28. Smaller Supercharger Pulley Belts Part Numbers (p. 120)
29. 5250 posts! (p. 150)
30. 5595 posts and over 8 years old! (p. 160)
31. 5614 posts and a little over 9 years old! Where were you in 2001? (p. 161)
32. 5660 posts, 162 pages, over 11 years! (p. 162)

[joeZX6]

THATS AWESOME !!!!!!!!!!!!!!!!!!!!!!!!!

sounds like this neuspeed charger is going to be "somewhat" upgradeable even if it means you can only run the small pulley for 4 monthout of the year but what the hey its better than nothing ....time for a dyno run.......

jettared-by the way i did call and finally found out what was up with that money order i sent you turns out it turned up "missing" they ended up cancelling it and reissuing me the 20bucks ...l


[Modified by joeZX6, 8:25 PM 12-28-2001]

[JettaRed]

Wow! I'm glad you got your money back. I forgot all about that.

[DblYeloRado]

will they sell the pulley now or do i have to have one made. all i could say is you the man

[JettaRed]

If Neuspeed isn't ready to sell (and support) the pulley "upgrade", you may be able to get one directly from Magnuson.

The funny thing is, when I took of the standard (2.8") pulley, it says Neuspeed on one side and TRD (Toyota Racing Development) on the other. Magnuson makes the Toyota superchargers, as well.

[greenveedubb]

It's only been 91 octane here in CA..

I hope it will be a successful turnout, JettaRed!

Keep us updated.

[DblYeloRado]

do you have a boost gauge how much more boost does the smaler pulley produce.i envy you about now.i need one too.i'll try neuspeed once more and then magnuson.

[JettaRed]

Here's the deal. The big difference is that with the standard pulley, the charger puts out 4 to 7 psi, with 7 at the top end (5500+ rpm). The high-altitude pulley puts out 6 to 8+ psi in mid to high range, with 5 psi at 2000 rpm. The results are increased responsiveness and driveability!

[DblYeloRado]

it sounds good.i'm hitting 5 psi at 5000 rpm and not hitting 7 till the limiter kicks and i loose it. sales will pick up with 5 psi at 2000 rpm. i want to say wahoo

[vento 95 GL]

quote:

---

Here's the deal. The big difference is that with the standard pulley, the charger puts out 4 to 7 psi, with 7 at the top end (5500+ rpm). The high-altitude pulley puts out 6 to 8+ psi in mid to high range, with 5 psi at 2000 rpm. The results are increased responsiveness and driveability!

---

So for when is the dyno day!!! common show us the improvements!!
Any news from Neuspeed about the intercooler for the kit???
Are you going to buy a new exaust?? Why don't you try the eurosport or autotech one!! I heard they give good gains!!!
A BMC cold air induction would be good too!!!

[XSiVE]

wow, 5psi at 2000 rpm, you must be having trouble keeping the tires from spinning

[JettaRed]

quote:

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wow, 5psi at 2000 rpm, you must be having trouble keeping the tires from spinning

---

Well, yes, if I'm not careful.

Remember, on these chargers the boost gets recirculated by the bypass valve until you hit the throttle a little and the vacuum shuts the valve. Then it's a nice kick in the pants.

[mrkrad]

If you encounter any pinging, i suggest reading the Toluene/octane booster FAQ. With a few more points of octane (dont be a cheapass) the extra heat with that pulley won't be an issue with hotter days..

Octane solves just about any problem when it comes to boost....

If you're too cheap to up the ante on the octane, then you probably shouldn't be boostin'

[joeZX6]

what about a good bottle of octane booster on every fillup like you used to do with your turbo g-60?

quote:

---

If you encounter any pinging, i suggest reading the Toluene/octane booster FAQ. With a few more points of octane (dont be a cheapass) the extra heat with that pulley won't be an issue with hotter days..

Octane solves just about any problem when it comes to boost....

If you're too cheap to up the ante on the octane, then you probably shouldn't be boostin'

---

[2kjettaguy]

muhahahaha

[vento 95 GL]

Hey Jettared, you don't have any news on the intercooler???

[JettaRed]

quote:

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Hey Jettared, you don't have any news on the intercooler???

---

No. I don't think it's feasible or cost effective with the current design. However, I think Neuspeed may be looking at some head options. I know they are investigating potential upgrades.

[GTI RB]

JettaRed, where do you live in Maryland? Do you know about Resivour Dogs in Loch Raven? Every Sunday VW people meet and hang out at Loch Raven Resivour. In the summer it can get pretty big but during the winter it may just be a few of us hardcore dubbers. You should stop by today, i would like to get a ride in your car.

[GTI RB]

Oh yeah...one more thing JettaREd. What measuring blocks did you use to test for ignition timing and detonation? I have been meaning to check mine out but don't feel like searching through each individual block. Thanks.

[JettaRed]

I work near Baltimore (UMBC campus) but live near Frederick. Thanks for the invite.

[JettaRed]

It's block 003 for the overall ignition timing retard, 020 for individual cylinder retard, and 026 for knock sensor voltages (though I don't know what they mean).

[vento 95 GL]

quote:

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Hey Jettared, you don't have any news on the intercooler???

No. I don't think it's feasible or cost effective with the current design. However, I think Neuspeed may be looking at some head options. I know they are investigating potential upgrades.

---

What do you mean about head options?? Do you mean they will try to lower the compression by using a head gasket and pumping more boost??
That would be nice to try!!!

[2kjettaguy]

So any problems yet? Still feel faster?

[JettaRed]

quote:

---

Hey Jettared, you don't have any news on the intercooler???

No. I don't think it's feasible or cost effective with the current design. However, I think Neuspeed may be looking at some head options. I know they are investigating potential upgrades.

What do you mean about head options?? Do you mean they will try to lower the compression by using a head gasket and pumping more boost??
That would be nice to try!!!

---

No, more like a port and polish. But the lower compression with more boost sounds interesting.

[JettaRed]

quote:

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So any problems yet? Still feel faster?

---

Well, it's only day 3, but no problems and it still feels a lot quicker. Top end is still going to be rev limited.

[vento 95 GL]

hey jettaRed, why don't you try using tt tuning camshafts for supercharger application??

On the website they are two versions both are asymetrical:

268/ 260 cam : 10 to 12 whp.

260/ 256 cam : 5 whp

It should be good to try out!!!!

[joeZX6]

jettared already has the 256 cam ..... but the 260/268 might be worth a go

[vento 95 GL]

what is the max boost that the supercharger could take???

Could a corrado G60 pulley work with this supercharger?? I think it is like 2.4inch
and pushes the corrado to 14 psi of boost.

Now imagine lowering the compression using a thicker gasket and bring the compression to 9:1 and use that pulley with the 268/260 cam , a good exaust,and of course some good fuel.

what do you think???? It should be interesting

[JettaRed]

Might work. Magnuson's charts show the charger running to 16,000 rpm, so you could calculate the minumum size of the charger pulley based on the crank pulley. figure max engine speed of 6800 rpm, so the charger pulley could be no smaller than 42.5% of the crank pulley.

[vento 95 GL]

quote:

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Might work. Magnuson's charts show the charger running to 16,000 rpm, so you could calculate the minumum size of the charger pulley based on the crank pulley. figure max engine speed of 6800 rpm, so the charger pulley could be no smaller than 42.5% of the crank pulley.

---

What is the size of the crank pulley by the way???

I just received an email from Greg at Neuspeed and I think the intercooler is still on the table.

here is the message he sent me:

quote:

---

Hi Steve,

I am still waiting for a quote from Magnusson on some of the hardware pieces
for the prototype intercooler kit. So, the intercooler kit is in temporary
limbo. However, we are working on a ported cylinder head as reported on
Vortex. Too early to report any possible results though, as we just started
the project a few weeks ago.

In regards to pricing, check out some of our distributors. I know for a
fact that New Dimensions is running a sale price on the supercharger right
now.

Happy New Years!

Best Regards,
Greg Woo

---

[JettaRed]

Cool! I haven't measured the crank pulley. Next time I'm under the hood with a tape measure, I will.

I'm glad to hear the IC is still on the table.

[vento 95 GL]

I know it's cool!!!!! What I think is that they are going to redesign the lower part of the intake manifold by integrating an intercooler. Again this is what I think they will do. I think it is feasible , but what price will Neuspeed charge for it?? That is the question.

[JettaRed]

Well, the stock lower intake manifold is pretty expensive (~$400). So, unless Magnuson is going to fabricate an entire piece, I would guess in the $800 to $1000 range, but what do I know. How much is an intercooler kit for a turbo? I have no insight into what the design or cost may be.

The other idea is to insert the cooling coils in line with the intake runner, right after the rotors. It would be a mod to the current setup and would probably require a core exchange.

[vento 95 GL]

quote:

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Well, the stock lower intake manifold is pretty expensive (~$400). So, unless Magnuson is going to fabricate an entire piece, I would guess in the $800 to $1000 range, but what do I know. How much is an intercooler kit for a turbo? I have no insight into what the design or cost may be.

The other idea is to insert the cooling coils in line with the intake runner, right after the rotors. It would be a mod to the current setup and would probably require a core exchange.

---

A tipical intercooler kit is around 700-1000$ normally. That's a great idea about the cooling coils. They could fabricate new chargers already equiped with the cooling coils and offer the upgrade to people already having the charger by asking a small core charge and free shipping


[Modified by vento 95 GL, 12:43 PM 12-31-2001]

[2kjettaguy]

I would be all over an intercooler kit for this. I am looking for some more power already I know, I'm greedy. The car feels so good and drives so much different with the supercharger, but it's definately toned down. It could rip so much harder