Homemade supercharged 4age . How long before BOOM ?
#1
Homemade supercharged 4age . How long before BOOM ?
currently rebuilding a smallport 4age 16v to try out a budget set up. Currently got a walbro 255 fuel pump, toyota sc14 blower, 4agze ecu and 365cc injectors, cheap boost guage, a few belts and mounting brackets.
Now here is the part that has me worried, the motor has a 10 c/r and i am not gonna be intercoolered . Timing will be retarted at the dizzy a bit . Pump gas is the only thing available on my island. Cant afford low comp pistons or intercooler right now. (strip clubs took a bite out of my savings) . Will detonation be a problem at 6-8 psi ? Spent the better part of this week reading ---- all over the web. Getting mixed opinions . What do guys think ? I know i sound like a noob but there isnt much info about set ups like this around
Now here is the part that has me worried, the motor has a 10 c/r and i am not gonna be intercoolered . Timing will be retarted at the dizzy a bit . Pump gas is the only thing available on my island. Cant afford low comp pistons or intercooler right now. (strip clubs took a bite out of my savings) . Will detonation be a problem at 6-8 psi ? Spent the better part of this week reading ---- all over the web. Getting mixed opinions . What do guys think ? I know i sound like a noob but there isnt much info about set ups like this around
#2
Re: Homemade supercharged 4age . How long before BOOM ?
you will be just fine. go a step or two colder on the plugs, and run the highest octane fuel they have on you island. if those pistons are stock then i would keep it under 10psi. if they are forged then boost the hell out of it. 10:1 is nothing to be afraid off
#4
Re: Homemade supercharged 4age . How long before BOOM ?
Saw thick head gaskets going for $185 usd on ebay. Thats cash i dont have to spend right now. Any hmt solutions to lower c/r ?
They only sell pump gas on the island. ---- i have never even seen octane booster anywhere. the pistons are stock. The abv on the blower will ensure that i dont exceed 8psi , anything more and it will vent the excess. May try to put a bigger pulley on the blower to lower boost to about 5 psi until i get the ic and forged pistons by xmas. Thanks guys keep the replies coming
They only sell pump gas on the island. ---- i have never even seen octane booster anywhere. the pistons are stock. The abv on the blower will ensure that i dont exceed 8psi , anything more and it will vent the excess. May try to put a bigger pulley on the blower to lower boost to about 5 psi until i get the ic and forged pistons by xmas. Thanks guys keep the replies coming
#5
Re: Homemade supercharged 4age . How long before BOOM ?
Originally Posted by PhilStubbs
you will be just fine. go a step or two colder on the plugs, and run the highest octane fuel they have on you island. if those pistons are stock then i would keep it under 10psi. if they are forged then boost the hell out of it. 10:1 is nothing to be afraid off
Not to mention, even small ports are semi-prone to blowing head gaskets. Putting a thicker head gasket will help, but it wont solve the problem.
Solution=GOOD IC + Tuning capability. Ive seen stock longblock blue tops make 250hp with good tuning. (turboed, good luck hitting that number on even the sc12) .
BTW what island do you live on?
#6
Re: Homemade supercharged 4age . How long before BOOM ?
Originally Posted by evo_lucian
Saw thick head gaskets going for $185 usd on ebay. Thats cash i dont have to spend right now. Any hmt solutions to lower c/r ?
They only sell pump gas on the island. ---- i have never even seen octane booster anywhere. the pistons are stock. The abv on the blower will ensure that i dont exceed 8psi , anything more and it will vent the excess. May try to put a bigger pulley on the blower to lower boost to about 5 psi until i get the ic and forged pistons by xmas. Thanks guys keep the replies coming
They only sell pump gas on the island. ---- i have never even seen octane booster anywhere. the pistons are stock. The abv on the blower will ensure that i dont exceed 8psi , anything more and it will vent the excess. May try to put a bigger pulley on the blower to lower boost to about 5 psi until i get the ic and forged pistons by xmas. Thanks guys keep the replies coming
#9
Re: Homemade supercharged 4age . How long before BOOM ?
Im from Saint Lucia (st.lucia) its west of barbados. Mid to high 80s all year round. I will definitely run the colder plugs. Any particular brand you guys recommend ? i will be using a sc14 not the baby sc12, im not really looking to hit 250whp yet, just looking to get a lil get up and go , somewhere around 170whp will be fine for now . i agree the stock intercooler is a waste, may be if its moved some how to the front where it can get better air flow then may be it might not be half bad, i have a set of sleeve over springs that i can probably trade for one.... So in your opinion the stock small port + sc14 wont last long?
Was originally trying to go non intercooled turbo, but the price of buying a manifold online and having it shipped to me quickly added up. Was looking for a CHEAP b series mani in the classifieds that i could cut and weld the 4age flange on but found nothing in my price range ($50-$80). Really thinking about a homemade sink trap using the stock piece.
Was originally trying to go non intercooled turbo, but the price of buying a manifold online and having it shipped to me quickly added up. Was looking for a CHEAP b series mani in the classifieds that i could cut and weld the 4age flange on but found nothing in my price range ($50-$80). Really thinking about a homemade sink trap using the stock piece.
#10
Re: Homemade supercharged 4age . How long before BOOM ?
Originally Posted by fe3tcourier
it will also through your cam timing out depending one which side the tensioner is on (ie retard or advance depending).