LS2 with Harrop 122 Ebay

[preciousmetal]

Tattooboy said:

ringram said:

Ah, ok. My error then as usual!
.

No shock there really !!

But I won't be SC again, BIG Cam next

in a Chevy Truck or a GTS

[stigmundfreud]

raving said:

ATM said:

You have a supercharged ls powered 3 series?

One of my best pals who is on here owns it, I supplied engine , box , blower & made all the mounts etc.
Forged Ls2 with heads cam etc etc with Vortech V2
The car is mint & he was going to sell , it should be at the Bmw show on the Eibach stand
Its been done about 4 years

Taken the best bit of the Monaro and dropped it into the best bit about Germany... BMW. Nice

[ringram]

Ive got an LS3 cam lined up. Going to be interested in how it goes. In theory should meet emissions and gain closer to 20% than the 6% other cam only setups do.

Ute will go straight to Charlie's for a baseline.

Then it will be a long wait while I make sure its all solid before tweaks start appearing.

[stigmundfreud]

what cam is that? Would I be correct in guessing a low lsa? I say guess, it seems the move is back towards low LSA for good gains and better manners

[jonnM]

ringram said:

should meet emissions and gain closer to 20%

What cam would meet that criteria? Sounds like the cam for me!

[KMud]

jonnM said:

What cam would meet that criteria? Sounds like the cam for me!

Methinks it's a 'man cam', not girly/baby

[ringram]

Wont know till its gone through gas check.
But its negative overlap. Similar to MikeyB's cam.

Im not sure what exhaust he is running, I was going to run stock exhaust at least initially.. So might/will suffer at the top end.

Mikey can tell us if his passes emissions ok and what spec cats he runs etc..

[MyM8V8]

Tattooboy said:

No, didn't touch the mapping, added the kit, mix was around 12%, stuck it on the same rollers and went from 460 to 480. Nothing else was touched on the car.

Meth was sprayed around 4PSI onwards

That's funny someone else did the same and apparently lost 20hp (LS2 +TVS).

As Stevie says, I'm sure you need to map for it, I also didn't get the results you had, quite the opposite???

[Tattooboy]

MyM8V8 said:

Tattooboy said:

No, didn't touch the mapping, added the kit, mix was around 12%, stuck it on the same rollers and went from 460 to 480. Nothing else was touched on the car.

Meth was sprayed around 4PSI onwards

That's funny someone else did the same and apparently lost 20hp (LS2 +TVS).

As Stevie says, I'm sure you need to map for it, I also didn't get the results you had, quite the opposite???

Perhaps as the 122 generated more heat, the spray mix was evaporated much more quickly than the later TVS units so more colder air was being injected?

Perhaps having the mist come on at a later PSI would be better on the TVS?

All I know is that it worked on mine without having to touch anything !

[007 VXR]

Tattooboy said:

Perhaps as the 122 generated more heat, the spray mix was evaporated much more quickly than the later TVS units so more colder air was being injected?

Perhaps having the mist come on at a later PSI would be better on the TVS?

All I know is that it worked on mine without having to touch anything !

that makes sense.

[ARAF]

Tattooboy said:

MyM8V8 said:

Tattooboy said:

No, didn't touch the mapping, added the kit, mix was around 12%, stuck it on the same rollers and went from 460 to 480. Nothing else was touched on the car.

Meth was sprayed around 4PSI onwards

That's funny someone else did the same and apparently lost 20hp (LS2 +TVS).

As Stevie says, I'm sure you need to map for it, I also didn't get the results you had, quite the opposite???

Perhaps as the 122 generated more heat, the spray mix was evaporated much more quickly than the later TVS units so more colder air was being injected?

Perhaps having the mist come on at a later PSI would be better on the TVS?

All I know is that it worked on mine without having to touch anything !

I wonder if you were both injecting in the same place? Before or after the 'charger?

[Tattooboy]

ARAF said:

Tattooboy said:

MyM8V8 said:

Tattooboy said:

No, didn't touch the mapping, added the kit, mix was around 12%, stuck it on the same rollers and went from 460 to 480. Nothing else was touched on the car.

Meth was sprayed around 4PSI onwards

That's funny someone else did the same and apparently lost 20hp (LS2 +TVS).

As Stevie says, I'm sure you need to map for it, I also didn't get the results you had, quite the opposite???

Perhaps as the 122 generated more heat, the spray mix was evaporated much more quickly than the later TVS units so more colder air was being injected?

Perhaps having the mist come on at a later PSI would be better on the TVS?

All I know is that it worked on mine without having to touch anything !

I wonder if you were both injecting in the same place? Before or after the 'charger?

Well mine was before.

[ATM]

Tattooboy said:

ARAF said:

Tattooboy said:

MyM8V8 said:

Tattooboy said:

No, didn't touch the mapping, added the kit, mix was around 12%, stuck it on the same rollers and went from 460 to 480. Nothing else was touched on the car.

Meth was sprayed around 4PSI onwards

That's funny someone else did the same and apparently lost 20hp (LS2 +TVS).

As Stevie says, I'm sure you need to map for it, I also didn't get the results you had, quite the opposite???

Perhaps as the 122 generated more heat, the spray mix was evaporated much more quickly than the later TVS units so more colder air was being injected?

Perhaps having the mist come on at a later PSI would be better on the TVS?

All I know is that it worked on mine without having to touch anything !

I wonder if you were both injecting in the same place? Before or after the 'charger?

Well mine was before.

Ok I'm a complete novice when it comes to charged LS engines BUT surely there is less benefit injecting meth before the charger. And yes I do have an A-level in physics and understand Boyle's law.

[stigmundfreud]

does it help reduce the temp at the point of compression? ie its better to cool before the heat than after

[MyM8V8]

Tattooboy said:

Well mine was before.

What size nozzle did you get. Mine is a 5 whatever that is. Probably big enough to dowse the fire???

[Tattooboy]

MyM8V8 said:

Tattooboy said:

Well mine was before.

What size nozzle did you get. Mine is a 5 whatever that is. Probably big enough to dowse the fire???

Can't recall mate, sorry