jgs wastegate??
jgs wastegate?? I have a 370ci motor with ported 317 heads and a pt88 on truck manifolds, i put the jgs 50mm wastgate on and without a boost controller, im only seeing a max of 4psi boost, not sure of the spring rating in there but even if it was a 4# spring, i didnt think this wastegate would be big enough to even get me that low of boost, which leads me to suspect that there is another issue
And does anyone know the ratings of the jgs springs
And does anyone know the ratings of the jgs springs
do you have a boost reference to the bottom port? if so that is completely normal. my TC76 with a JGS 50mm only gets about 4 psi on the spring with the bottom port referenced. you can T off the reference to the top and bottom ports. that will slightly more than double your boost. i get about 11lbs with both ports referenced. if you take the reference off completely and run just back pressure it will do a just a bit less than double. now these are just estimates and basic rules. that's not factoring the many variables such as Turbine backpressure, wastegate efficiency, pipe routing/length and recirc backpressure from the downpipe.
ahh i see, ya i was not impressed with the cars performance on 4#s of boost lol, ill put a manual boost controller in to see wut i coul do, i hope its gonna make atleast 650rwhp at 10#s especially with the t56, but it feels like at 4#s it cant be more than 420rwhp (only have the timing set at 11* for now)
They are that good! Don't go rigging **** up to the top port. Either put a controller on it or just go to the next heavier spring. It should have come with a couple. And I agree, even the 6-7 psi that I make with the controller off makes me think that something is wrong with the car. SLOW!
lol, i slapped on my brothers manual boost controller and made some passes and it maxes out at 9psi now, wow is all i could say lol, huge difference and i was only pulling 13 degrees, gonna bump it up to 15 since my compression is about 10:1, i was looking at the eboost2 I like that it has an aux output
how does the ams500 compare to this unit, does it have aux outputs as well
i cant wait to get to 15psi of boost i can tell already im hooked, this is way better than nitrous
how does the ams500 compare to this unit, does it have aux outputs as well
i cant wait to get to 15psi of boost i can tell already im hooked, this is way better than nitrous
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^^^ just a heads up, i got this info strait from JGS, i have the same gate. the sring in it from the factory is 7 psi, but they told me to expect to see about 4.5 psi with it. So no, nothings wrong.
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Verdad Gallardo lol, i slapped on my brothers manual boost controller and made some passes and it maxes out at 9psi now, wow is all i could say lol, huge difference and i was only pulling 13 degrees, gonna bump it up to 15 since my compression is about 10:1, i was looking at the eboost2 I like that it has an aux output
how does the ams500 compare to this unit, does it have aux outputs as well
i cant wait to get to 15psi of boost i can tell already im hooked, this is way better than nitrous
how does the ams500 compare to this unit, does it have aux outputs as well
i cant wait to get to 15psi of boost i can tell already im hooked, this is way better than nitrous
EDIT: Nevermind I seen you can use c02... Now my question for you. I seen your post on yellowbullet. Seemed after everyone told you AMS1000 you still went with the 500. What sold ya on it and how ya like it??
Last edited by Dragframe; Jul 30, 2010 at 07:54 PM.
The ams500 does c02?? Damn im gunna have to find someone to buy this eBoost2. I figured the ams1000 was the only one to have the co2 option
EDIT: Nevermind I seen you can use c02... Now my question for you. I seen your post on yellowbullet. Seemed after everyone told you AMS1000 you still went with the 500. What sold ya on it and how ya like it??
EDIT: Nevermind I seen you can use c02... Now my question for you. I seen your post on yellowbullet. Seemed after everyone told you AMS1000 you still went with the 500. What sold ya on it and how ya like it??
So i guess the ams500 may be where i need to be at
I made a pass with my buddies 720rwhp t-trim vette and he was only about a car out on me, so i guess im making decent power, but then i decided to try a 5th gear pull and i believe my spec 3+ is slipping now cause i doubt i was spinning the tires in 5th
Btw im still at 9psi and upped the timing to 16* and left the afr alittle on the fat side
Man im lovin this thing lol
Also wut kinda timing are u running 98z28cobrakiller, im wondering if i could go alittle higher than 16* safely with my 9.8:1 compression and 9psi
I made a pass with my buddies 720rwhp t-trim vette and he was only about a car out on me, so i guess im making decent power, but then i decided to try a 5th gear pull and i believe my spec 3+ is slipping now cause i doubt i was spinning the tires in 5th
Btw im still at 9psi and upped the timing to 16* and left the afr alittle on the fat side
Man im lovin this thing lol
Also wut kinda timing are u running 98z28cobrakiller, im wondering if i could go alittle higher than 16* safely with my 9.8:1 compression and 9psi
So i guess the ams500 may be where i need to be at
I made a pass with my buddies 720rwhp t-trim vette and he was only about a car out on me, so i guess im making decent power, but then i decided to try a 5th gear pull and i believe my spec 3+ is slipping now cause i doubt i was spinning the tires in 5th
Btw im still at 9psi and upped the timing to 16* and left the afr alittle on the fat side
Man im lovin this thing lol
Also wut kinda timing are u running 98z28cobrakiller, im wondering if i could go alittle higher than 16* safely with my 9.8:1 compression and 9psi
I made a pass with my buddies 720rwhp t-trim vette and he was only about a car out on me, so i guess im making decent power, but then i decided to try a 5th gear pull and i believe my spec 3+ is slipping now cause i doubt i was spinning the tires in 5th
Btw im still at 9psi and upped the timing to 16* and left the afr alittle on the fat side
Man im lovin this thing lol
Also wut kinda timing are u running 98z28cobrakiller, im wondering if i could go alittle higher than 16* safely with my 9.8:1 compression and 9psi
I run 16* @ 12-13 psi on the street on pump gas. My compression is about the same as yours.
EGT tuning is a bit of an art mixed with a little voodoo. Fuel and spark both effect EGT but reading plugs is how the pros do it. I have a general understanding of how to read the important stuff on a plug. What I don't really understand is how to tell if your heat range isn't optimum. EGTs are great for individual cylinder tuning though. By seeing their exhaust temps compared to each other, you can see a problem cylinder immediately. The sensors are small and robust from what I have been told as compared to WBO2 sensors which are bigger and more delicate. The controllers are cheaper as well. That said, I've never seen a street car with individual EGTs (not counting diesel trucks here) and I've seen a shitload of really fast street cars.
ya i hear ya man, so i guess ill make a 4th gear pull and then shut down the engine once i hit my max rpm and pull #7 plug and replace, and then read it at home, I guess ill google a good writeup on sparkplug reading lol.....
I appreciate all the help man... i know you said that the ams500 was your weapon of choice, but how do u feel about the eboost 2.....I like it better than the ams cause it has a boost gauge( which i still need) and the aux outputs are a big plus, so that i can use it to turn on my second fuel pump when i install it and if i decide to go with meth it can trigger that as well...
however i like the idea of the c02 cause of the precision you have with boost control, but is it really all that necessary, cause the c02 sounds like another extra system to worry about and over complicate things...
if you dont mind giving me your opinion on my questions of the 2 boost controllers
thanks
I appreciate all the help man... i know you said that the ams500 was your weapon of choice, but how do u feel about the eboost 2.....I like it better than the ams cause it has a boost gauge( which i still need) and the aux outputs are a big plus, so that i can use it to turn on my second fuel pump when i install it and if i decide to go with meth it can trigger that as well...
however i like the idea of the c02 cause of the precision you have with boost control, but is it really all that necessary, cause the c02 sounds like another extra system to worry about and over complicate things...
if you dont mind giving me your opinion on my questions of the 2 boost controllers
thanks
ya i hear ya man, so i guess ill make a 4th gear pull and then shut down the engine once i hit my max rpm and pull #7 plug and replace, and then read it at home, I guess ill google a good writeup on sparkplug reading lol.....
I appreciate all the help man... i know you said that the ams500 was your weapon of choice, but how do u feel about the eboost 2.....I like it better than the ams cause it has a boost gauge( which i still need) and the aux outputs are a big plus, so that i can use it to turn on my second fuel pump when i install it and if i decide to go with meth it can trigger that as well...
however i like the idea of the c02 cause of the precision you have with boost control, but is it really all that necessary, cause the c02 sounds like another extra system to worry about and over complicate things...
if you dont mind giving me your opinion on my questions of the 2 boost controllers
thanks
I appreciate all the help man... i know you said that the ams500 was your weapon of choice, but how do u feel about the eboost 2.....I like it better than the ams cause it has a boost gauge( which i still need) and the aux outputs are a big plus, so that i can use it to turn on my second fuel pump when i install it and if i decide to go with meth it can trigger that as well...
however i like the idea of the c02 cause of the precision you have with boost control, but is it really all that necessary, cause the c02 sounds like another extra system to worry about and over complicate things...
if you dont mind giving me your opinion on my questions of the 2 boost controllers
thanks
As for the CO2, it's not neccesary but it is also not at all complicated as it is completely mechanical. The electrical side is all for the boost controller and you will be running the solenoids regardless (unless you go MBC). I will tell you that I would bet the last dollar in my pocket that if you had a controller that will work either way and you try the the co2, you wont give it back.