7afe internals, sumthing a lil new Options

[playr158]

7A block with F head:
1.8 liters (1,762cc)
105hp (SAE net) @ 5,200 rpm
117 lb-ft torque (SAE net) @ 2,800 rpm
Bore = 81.0mm
Stroke = 85.5mm
CR = 9.5:1


7AFE / 4AGE
rod length=.......................132.5 / 122
crank throw=.....................42.75 / 38.5
stroke=..............................85.5 / 77
Difference in compression height =14.75mm

Toyota 4AGE 1.6L DOHC 88-92 MR2
Stock Bore: 3.189, 81 mm | Stroke: 3.031 | Rod Length: 4.804 | Head cc: 39.0 | Gasket: .028 | Deck: .005

ARIAS pistons 4ag(z)e=
Bore in/mm: 3.209 / 81.50
Cr Height: 1.190
Dome CC: 7.5
Cr Ratio w/G head: 10.7
Gram Wt: 288
prt #= 3730300
ring kit prt # =1012283209

Pauter RODS-4a motor
.787” ----------------------pin diam
1.772” --------------------BE bore
4.800”---------------------length
.856” ---------------------BE width
460g ----------------------weight
TOY-200-450-1220F -----prt #

Stock 4AGZE pistons in 7A block will give you 10.8 CR (Edo got 11.06 cuz of the Bigger bore), so then using 1.5 mm head gasked you will get the CR between 9.5-9.6 and using 2mm head gasket will get you at 9-9.1 CR.
you have three options on aftermarket rods ARGO, PUATER, OR CUSTOM 700+ at min



This post has been edited by playr158: Apr 7, 2005 - 10:18 AM

[playr158]

aite for a sec. lets talk about the block of a 7afe

i'm shooting for a max bore of 83mm to accomidate my 4agze pistons and get the most i can....

even though the block is a strong block i know the walls get thin here and under boost things can happen
i'm planning a daily boost of 2-4 psi
and a run boost of around 10-15psi

so with a 83mm bore (.20 over)
what would the issues be there?

[nik]

aite for a sec. lets talk about the block of a 7afe

i'm shooting for a max bore of 83mm to accomidate my 4agze pistons and get the most i can....

even though the block is a strong block i know the walls get thin here and under boost things can happen
i'm planning a daily boost of 2-4 psi
and a run boost of around 10-15psi

so with a 83mm bore (.20 over)
what would the issues be there?
[right][snapback]268156[/snapback][/right]

i wont answer this but will say our blocks are not as strong as the 7 rib or 5 rib 4ag blocks this is a FACT and boring that big on a boosted set up.......well i wouldnt. In my set up i'm leaving as much of the block there as i can i'm boring out .05 to fit my pistons and thats all "the more meat the better" IMAO and others

but hey no one knows for sure so do it find out if it holds tell us if it doesnt write about here.

This post has been edited by nik: Apr 8, 2005 - 9:31 AM